• These free radicals then attach to the monomers through the respective functional groups thus inducing rapid polymerization between the monomers (Shin et al. (cheapjewelryus.com)
  • Anionic Polyacrylamide is a water-soluble polymer formed from the polymerization of acrylamide monomers. (atamanchemicals.com)
  • Demanded product should have controllable molecular weight, good water solubility and with little residual monomers. (atamanchemicals.com)
  • This polymerisation route requires neither organometallic monomers nor transition metal catalysts and offers a reliable design strategy to facilitate delocalisation of frontier molecular orbitals, elimination of energetic disorder arising from rotational torsion and allowing closer interchain electronic coupling. (nature.com)
  • Emulsogen EPA 073 is used as anionic emulsifier for the emulsion polymerization of monomers like pure acrylic, styrene-acrylic acid esters and vinyl acetate. (clariant.com)
  • Emulsogen EPN 407 is used as nonionic emulsifier for the emulsion polymerization of monomers like acrylates, styrene-acrylates, styrene-butadiene and vinyl acetate. (clariant.com)
  • New Polymerizations and New Monomers (Polymerizations via Mechanisms not Included in the Preceding Classifications 1-4, New Catalysts, Novel Monomers, etc. (or.jp)
  • Compared with other polymerization methods, the dispersion polymerization system has low apparent viscosity, fast dissolution rate, low heat of evaporation of the medium, simple production process, and a wide range of functional monomers, etc. (shhvcycletech.com)
  • Achieving control over stereochemical assembly of monomers into synthetic polymers, particularly backbone stereochemistry, could afford a simple platform from which to access a diverse range of materials properties. (nature.com)
  • The block copolymers exhibit block efficiencies higher than 95% and molecular weights up to 150.000 g/mol with polydispersities below 1.05. (tu-darmstadt.de)
  • These novel concepts for the anionic polymerization of FMMA and vinylferrocene as well as the well-established ROP of [1]-silaferrocenophanes could also be applied for the synthesis of block copolymers with polycarbosilanes as organic counterparts. (tu-darmstadt.de)
  • PEG 42 - b -PMLABe 73 and Biot-PEG 66 - b -PMLABe 73 block copolymers were obtained by anionic ring-opening polymerization of benzyl malolactonate in presence of α-methoxy-ω-carboxy-PEG 42 and α-biotin-ω-carboxy-PEG 66 as initiators. (frontiersin.org)
  • These copolymers typically are prepared by sequential anionic polymerization or by chemical coupling of linear diblock copolymers. (allindianpatents.com)
  • The glass transition temperature (Tg) of the typical SBC TPE is equal to or less than about 80-90°C, thus presenting a limitation on the utility of these copolymers under higher temperature use conditions. (allindianpatents.com)
  • Block copolymers prepared by anionic-to-ATRP transformation. (anon.co.kr)
  • The synthesis of copolymers was performed using sequential reversible addition-fragmentation chain transfer (RAFT) and ring-opening polymerization (ROP) techniques. (bvsalud.org)
  • It is a mild surfactant compatible with anionic, cationic and nonionic substances. (clariant.com)
  • According to the chemical structure classification of substituents, they can be divided into anionic, cationic and nonionic ethers. (kimacellulose.com)
  • For the synthetic approach to the desired PFMMA-containing compounds via sequential anionic polymerization a sterical hindered initiator or macroinitiator was necessary. (tu-darmstadt.de)
  • Via application of the so-called carbanion-pump and/or the addition of different salt additives very reactive polyvinylferrocene chain termini could be obtained, which act highly efficiently in block copolymer syntheses following sequential monomer addition approaches. (tu-darmstadt.de)
  • The BCP is synthesized via sequential "living" anionic polymerization protocols and analyzed by 1H-NMR spectroscopy, size exclusion chromatography, and differential scanning calorimetry. (bsz-bw.de)
  • Among the crosslinking strategies employed (chemical crosslinking (UV, Visible) and physical crosslinking (ionic)), visible light mediated photocrosslinking offers the advantages of reduced cytotoxicity and rapid crosslinking (free radical polymerization).The efficiency of the crosslinking depends on the monomer, photo-initiator concentration, beam wavelength, and the exposure time.A dye molecule (initiator) usually absorbs light and undergoes transition from a low level to higher excited states. (cheapjewelryus.com)
  • Anionic Polyacrylamide is formed by the polymerization of free acrylamide monomer radical. (atamanchemicals.com)
  • Anionic Polyacrylamide is copolymerized by acrylate And acrylamide monomer that are known for its ultrahigh molecular weight polymer with 30 million Further it has outstanding adsorption bridge effect It can be utilized as per the varied requirements of customers for the performance of the products. (atamanchemicals.com)
  • The process may be induced by stimulating free radical polymerization, by the introduction of an alkali amide or secondary monomer (anionic addition polymerization and ion coordination polymerization, respectively), or by the use of a catalyst . (aboutmechanics.com)
  • Lignin is composed of three kinds of lignin monomer polymerization, including calcium lignosulfonate, sodium lignosulfonate, and magnesium lignosulfonate. (timo4.com)
  • Dispersion polymerization usually refers to a polymerization method in which the monomer has good solubility in the dispersion medium. (shhvcycletech.com)
  • Since acrylamide is a water-soluble polar monomer, the surface energy of the ions formed is high, and the reaction conditions, especially the requirements for dispersants, are demanding. (shhvcycletech.com)
  • Further access to materials possessing a broader range of thermal and mechanical properties is accomplished by polymerising a variety of commercially available dithiols with the dipropiolamide monomer. (nature.com)
  • It is used as an initiator of an anionic addition polymerization with ethylene oxide, forming a polyether with high molecular weight. (wikipedia.org)
  • Except for a few solvent such as acetic acid, acrylic acid, ethylene glycol, glycerol and formamide, Anionic Polyacrylamide is generally insoluble in organic solvents. (atamanchemicals.com)
  • Examples are provided of linear thermoplastic elastomers having hard blocks of high density polyethylene or isotactic polypropylene and soft blocks of ethylene-propylene rubber. (allindianpatents.com)
  • Japanese Early Publication H4-337308 (1992) describes what is said to be a polyolefin copolymer product made by polymerizing propylene first so as to form an isotactic polypropylene and then copolymerizing the polypropylene with ethylene and propylene, both polymerizations in the presence of an organoaluminum compound and a silicon-bridged, biscyclopentadienyl zirconium dihalide compound. (allindianpatents.com)
  • Anionic polymerization of butadiene into a mixed microstructure triblock copolymer followed by catalytic hydrogenation leads to EXE, where E denotes poly(ethylene), and X represents a strategically designed statistical copolymer of ethylene and ethylethylene that is melt miscible with iPP. (umn.edu)
  • Silicone oils are linear polymers synthesized by ring - opening polymerization. (ukessays.ae)
  • Among the nanoplatforms designed to address these objectives, polymer-based NPs have attracted much interest mainly because of the versatile characteristics of polymers allowing adjustment of the physico-chemical and biological properties of the corresponding nanocarriers. (frontiersin.org)
  • The book covers classification of water soluble polymers, processes, properties, uses and applications of water soluble polymers with lot of other information. (niir.org)
  • Our polymers with a high electron affinity display long wavelength NIR absorption with air stable electron transport in solution processed organic thin film transistors. (nature.com)
  • Conjugated polymers have the potential for solution processability, compatibility with flexible substrates, and can be fabricated in large areas at high throughput. (nature.com)
  • SNF's extensive FLOCARE™ range of anionic polymers (emulsions and powders) are beneficial in satisfying current formulator demands. (snf.com)
  • SNF also offers polymers that help increase suspending and stabilizing properties of your bath products and still maintain clarity when needed. (snf.com)
  • PDMS-containing segmented polymers have recently received great attention due to their amphiphilic and water-swellable properties facilitating their use in nanotechnological and industrial applications.267,268 PSt segment of PSt-b-PDMS;267 PHEA and PAAm segments of MA-PHEA-b-PAAm-b-PDMS-b-PAAm-b-PHEA-MA268 and PAAm-b-PDMS-b-PAAm269 were synthesized by RAFT polymerization using PDMS macro-CTAs. (anon.co.kr)
  • It is well known that stereochemistry of polymers dictates their bulk properties, but the importance of stereocontrol in polymer synthesis is often overlooked. (nature.com)
  • As such, the continued innovation of long-lasting non-resorbable polymers in joint and/or bone therapies, for example, are lagging behind and suffer from notable limitations such as wear, difficult processing, sterilisation or high cost. (nature.com)
  • PAM (Polyacrylamide) Polyacrylamides are high molecular weight water soluble polymers formed from acrylamide or its derivatives. (beological.nl)
  • Anionic Polyacrylamide, white Granular is a water-soluble high polymer solid powder. (atamanchemicals.com)
  • Anionic Polyacrylamide is a hard glassy solid at room temperature. (atamanchemicals.com)
  • Anionic Polyacrylamide has a linear-chain structure. (atamanchemicals.com)
  • Anionic Polyacrylamide is highly water-absorbent, forming a soft gel when hydrated. (atamanchemicals.com)
  • Anionic polyacrylamide is a type of synthetic polymer that is widely used in various industrial and environmental applications. (atamanchemicals.com)
  • Anionic Polyacrylamide is one of the most widely used water-soluble polymer species with a large number of pendant amide groups presenting on its molecular backbone. (atamanchemicals.com)
  • Anionic Polyacrylamide is widely used in papermaking, mining, coal washing, metallurgy, oil exploitation and other industrial sectors and is also a important chemical for water treatment. (atamanchemicals.com)
  • Anionic Polyacrylamide can be synthesized as a simple linear-chain structure or cross-linked. (atamanchemicals.com)
  • Anionic Polyacrylamide is relatively stable to heat with its solid only being softened at 220~230 °C and its solution subjecting to significant degradation only at above 110 °C. (atamanchemicals.com)
  • Anionic Polyacrylamide can react with alkaline with partial hydrolysis of polyacrylamide. (atamanchemicals.com)
  • Anionic Polyacrylamide will have imidization reaction in strongly acidic (pH≤2.5) which will reduce its solubility in water. (atamanchemicals.com)
  • Anionic Polyacrylamide can be cross-linked by the poly-nuclear olation complex ion formed between aldehyde (such as formaldehyde) and high metal (such as aluminum, chromium, zirconium, etc.) and is easy to be degraded by the action of the mechanical and (or) oxygen. (atamanchemicals.com)
  • Anionic Polyacrylamide is a polyolefin. (atamanchemicals.com)
  • Anionic Polyacrylamide can be viewed as polyethylene with amide substituents on alternating carbons. (atamanchemicals.com)
  • Unlike various nylons, Anionic Polyacrylamide is not a polyamide because the amide groups are not in the polymer backbone. (atamanchemicals.com)
  • For this reason, Anionic Polyacrylamide exists in atactic, syndiotactic, and isotactic forms, although this aspect is rarely discussed. (atamanchemicals.com)
  • The Anionic Polyacrylamide is initiated with radicals and is assumed to be stereorandom. (atamanchemicals.com)
  • SDS-PAGE, sodium dodecyl sulfate polyacrylamide gel electrophoresis, describes a technique widely used in biochemistry, forensics, genetics and molecular biology to separate proteins according to their electrophoretic mobility (a function of the length of a polypeptide chain and its charge) and no other physical feature. (textilelearner.net)
  • A source of free radicals and a stabilizer such as ammonium per sulfate and TEMED are added to initiate polymerization.The polymerization reaction results in a gel because of the added bisacrylamide, generally about 1 part in 35 relative to acrylamide, which can form cross-links between two polyacrylamide molecules. (textilelearner.net)
  • Cationic polyacrylamide (PAM) is a copolymer with ionizable groups on the linear molecular chain. (irochemical.com)
  • The new polyacrylamide emulsion , also known as 'water-in-water' type polyacrylamide emulsion, synthesized by the dispersion polymerization method, has the advantages of fast dissolution, easy use in the field, and being friendly to the environment. (shhvcycletech.com)
  • The polymeric jelly dissection system consisting of anionic polyacrylamide emulsion phenolic pre-condensation crosslinker with molecular weight (6-8) × 106 and 20% hydrolysis degree can be prepared directly from seawater with pH 8.3 and mineralization degree 31107.12 mg/L. The dissection system can be used at a high mineralization level. (shhvcycletech.com)
  • The dispersion polymerization method synthesizes polyacrylamide emulsions with excellent dissolution properties, which are easy to use in the field and environmentally friendly, and have a wide range of applications in oilfield development. (shhvcycletech.com)
  • Polyacrylamide synthesized by dispersion polymerization is also known as 'water-in-water' polyacrylamide emulsion. (shhvcycletech.com)
  • Many fundamental types of Research have been conducted on the synthesis of polyacrylamide emulsions by dispersion polymerization, mainly on the kinetics of nucleation and stabilization mechanism of polyacrylamide dispersion polymerization and the factors influencing the polymerization reaction. (shhvcycletech.com)
  • Sep 7, 2018 · High molecular weight (10 6 -3 × 10 7 Da) polyacrylamide (PAM) is commonly used as a flocculant in water and wastewater treatment, as a soil conditioner, and as a viscosity modifier and. (beological.nl)
  • Description: According to ionic characteristics, it can be divided into four types, non-ionic polyacrylamide NPAM, anionic polyacrylamide APAM, cationic polyacrylamide CPAM and amphoteric polyacrylamide. (beological.nl)
  • High Molecular Weight Polyacrylamide PAM Water Treatment Chemical Pam For Municipal Wastewater Treatment,Product name:Polyacrylamide for Municipal Wastewater Treatment,A higher charged cationic polymer is more effective, and molecular weight should be based on the solid-liquid separation process. (beological.nl)
  • Lignosulfonate water reducer is a common type of water reducer, belonging to anionic surfactants. (timo4.com)
  • Genagen KB is an amphoteric mild surfactant with synergistic thickening properties and good skin compatibility, especially in combination with anionic surfactants. (clariant.com)
  • On the other hand, silicone resins have high cross linking density and as a result they have high thermal stability. (ukessays.ae)
  • In addition, since much of the raw material used in the plastics industry today may come from recycled polymer resins, polyethylene properties can vary widely, even between different batches presented as the same material. (aboutmechanics.com)
  • Small angle X-ray scattering and molecular dynamics simulations were used to characterize the interaction between nanoparticles in linear alkane solvents ranging from hexane to hexadecane, including \SI{4}{\nano\meter} gold cores with hexadecanethiol shells and \SI{6}{\nano\meter} cadmium selenide cores with octadecanethiol shells. (bsz-bw.de)
  • Drugs containing polymeric nanoparticles (PN) have better pharmacological and therapeutic properties. (pdfplayer.org)
  • Research on the dispersion polymerization of acrylamide began in the late 1990s and generally used two systems: low carbon alcohol/water mixtures [and brine solutions. (shhvcycletech.com)
  • Anionic Polyacrylamide's not soluble in most organic solvent, with good flocculating activity. (atamanchemicals.com)
  • In this process, reaction between aerial oxygen and H 2 S/CO 2 with MDEA produces low molecular weight organic acid anions such as formate, acetate, propionate etc. (madridge.org)
  • This concept enables the realization of unique optical and electronic properties arising from the efficient thermal equilibration of the lowest singlet (S 1 ) and triplet (T 1 ) excited states of organic fluorophores. (uhasselt.be)
  • These organic thin-film photovoltaics have demonstrated strong potential as an innovative source of renewable energy, adding appealing features to classical solar cell technology, in particular in terms of architectural freedom (flexibility, reduced weight, color, semitransparency), low-light performance, and low-cost (high-throughput) large-area production. (uhasselt.be)
  • These procedures include the reduction of SiO 2 into an active reduced form of silicon, hydrolysis/methanolysis and polycondensation or cyclization and polymerization [3]. (ukessays.ae)
  • The variations likely to lead to these differences involve molecular weight, density, and the degree of branching of carbon molecular attachment. (aboutmechanics.com)
  • Low-density polyethylene (LDPE) and high-density polyethylene (HDPE). (aboutmechanics.com)
  • HDPE, on the other hand, is a more durable grade of polyethylene due to a higher density and linear crystallization. (aboutmechanics.com)
  • For instance, ultra high molecular weight polyethylene (UHMWPE) and high molecular weight polyethylene (HMWPE) are both catalyst induced and have an unusually elevated density and molecular weight. (aboutmechanics.com)
  • In addition to density, molecular weight, and stress resistance, other polyethylene properties are considered to rate function and application. (aboutmechanics.com)
  • Directory/ Database/ List of Plastic Industries/ Companies in India (5th Edition) (Manufacturers of Plastics Goods, Products, Sheets, Injection Moulding, Low-density (LDPE), High-density (HDPE), Pipe & Pipe Fittings, Auxiliary Equipment & Machinery etc. (niir.org)
  • High-density polyethylene (HDPE) is a semicrystalline thermoplastic that can be processed into a versatile range of commodity materials such as storage containers, plastic bags, pipes, electrical coatings, and much more. (umn.edu)
  • Because cationic PAM has a high density of positive charge in its molecular chain, the dosage is small and non-polluting. (irochemical.com)
  • 1991). The representative example involves the synthesis of PCL-b-(PMMA-co-PSt)-b-PCL.270 A polymeric thermal iniferter, PCL-substituted tetraphenylethane, was prepared by anionic polymerization of CL in the presence of aluminum triisopropoxide and benzopinacol. (anon.co.kr)
  • The polymeric compositions are endowed with very good characteristics of impact strength and processability, combined with a high transparence, which make them suitable for all of the uses provided for the transparent, impact resistant materials. (everypatent.com)
  • The ability to rationally modulate the thermomechanical properties of polymeric materials by design is a fundamental aim of materials science. (nature.com)
  • Unlike conventional polymeric membranes, porous silica membranes with higher permeance and selectivity are applicable at high wellhead pressures and do not suffer from CO 2 plasticization, representing an alternative for CO 2 /CH 4 separation. (mrs.org)
  • What are Polyethylene Properties? (aboutmechanics.com)
  • The properties of polyethylene vary depending on the grade of the virgin material used to synthesize this thermoplastic and its structural crystallization. (aboutmechanics.com)
  • However, since this substance can be produced by a number of methods to polymerize ethane , each will yield differences in specific polyethylene properties. (aboutmechanics.com)
  • Since the polyethylene properties of the former contain a greater degree of long chain branching, the matrix is less dense and doesn't offer as much tensile strength as the latter. (aboutmechanics.com)
  • The polyethylene properties of this material make it suitable for use in producing many types of stress-resistant plastics intended for consumer and commercial use. (aboutmechanics.com)
  • As previously mentioned, polyethylene properties differ depending on the method of polymerization employed. (aboutmechanics.com)
  • In addition, the application of high voltage is used to achieve extended chain crystal polyethylene (ECC), which results in dense crystallization but renders transparency. (aboutmechanics.com)
  • Catalysts are often the method of choice to obtain material that exhibits desirable polyethylene properties. (aboutmechanics.com)
  • For transistor applications, polymer molecular conformation and thin film morphology have been shown to influence charge carrier mobility, and subsequently the device electrical properties 3 . (nature.com)
  • SDS is an anionic detergent applied to protein sample to linearize proteins and to impart a negative charge to linearized proteins. (textilelearner.net)
  • In addition, the step of applying a bleaching and antimicrobial composition to laundry can precede or follow a step of washing laundry with a detergent composition for the removal of soil. (justia.com)
  • This tetra-saccharide polymer exists as random coils when dissolved in water and exhibits a sol-gel transition at ~ 40 °C. Even though Gellan gum is biocompatible and exhibits the potential to form stable gels, it is least explored as a tissue engineered construct due to its poor mechanical properties. (cheapjewelryus.com)
  • These anionic species and protonated MDEA makes heat stable salt (HSS) which is not possible to be separated from the solvents in the regenerator [1] [2] . (madridge.org)
  • MgO is prized as a refractory material, i.e. a solid that is physically and chemically stable at high temperatures. (antareschem.com)
  • In addition, a very stable class of organometallic coordination compounds has provided impetus to the development of organometallic chemistry. (en-academic.com)
  • High Performance / Physical Functions (Mechanical Properties (e.g. (or.jp)
  • Here, we report a class of easily processable polyamides with stereocontrolled mechanical properties and high-fidelity shape memory behaviour. (nature.com)
  • As it can be immediately seen in the mechanical properties chart reported in Table 2, the specific strength of unidirectional (UD) GFRPs (fiber volume fraction Vf = 0.5) and CFRPs (Vf = 0.6) is significantly higher than that of steel, and also the absolute strength of CFRPs is superior than that of steel. (milanpolymerdays.org)
  • However, it has to be also considered that the mechanical resistance of FRPs is strongly affected by several factors, such as the intrinsic mechanical properties of the constituents, the interfacial adhesion conditions, the adopted processing conditions, etc. (milanpolymerdays.org)
  • The use of metallocene catalysts for olefin polymerization has led to additional contributions to the field. (allindianpatents.com)
  • Transesterification reactions are promoted by certain catalysts at high temperatures, which tend to randomise the distribution of repeat units issued from the pair addition mechanism (Dobrzynski et al. (anon.co.kr)
  • The reaction principle is that the sulfonic acid group is introduced into the addition of the enol group in sulfonic acid and the sulfonic acid group is introduced into the reagent with Na2S03. (timo4.com)
  • Because Na2S03 is hydrolyzed to generate H2SO3, the addition reaction can be carried out to generate lignosulfonate in an alkaline medium. (timo4.com)
  • By rationally exploiting reaction conditions, the alkene stereochemistry is modulated between 35-82% cis content and the stereochemistry dictates the bulk material properties such as tensile strength, modulus, and glass transition. (nature.com)
  • Insertion, or coordination, polymerization of olefins can provide economically more efficient means of providing copolymer products, both because of process efficiencies and feedstock cost differences. (allindianpatents.com)
  • The increase in molecular weight (M w ) of the dye-centered diblock copolymer was concluded by the GPC measurement. (researchsquare.com)
  • A.sub.3 is a polyvinylaromatic block, and B.sub.3 is a polydiene block and T is the same as defined hereinabove wherein said linear block copolymer has a weight average molecular weight of 20,000 to 150,000. (everypatent.com)
  • High encapsulation efficiencies (≥75%) were achieved for all single- and dual-drug formulations. (bvsalud.org)
  • Based on this finding we concluded that OPDs have the potential to be a useful technology up to 2 μm, given that high external quantum efficiencies can be maintained at these low photon energies. (uhasselt.be)
  • Therefore, it is necessary to introduce the sulfonic acid group, amine group, carboxyl group, and other anionic surface-active groups to produce water reducing agent from alkali pulp waste liquid. (timo4.com)
  • We set out to create a tough, resilient biomaterial with stereochemically dependent properties by combining a polyamide backbone with unsaturated alkene moieties. (nature.com)
  • its aqueous solution is clear and transparent with its viscosity increasing with increased molecular weight of the polymer, and also having a logarithmic relationship with the change in concentration of the polymer. (atamanchemicals.com)
  • 2) The water retention of methyl cellulose depends on its addition amount, viscosity, particle fineness and dissolution rate. (kimacellulose.com)
  • Generally, if the addition amount is large, the fineness is small, and the viscosity is large, the water retention rate is high. (kimacellulose.com)
  • Among them, the amount of addition has the greatest impact on the water retention rate, and the level of viscosity is not directly proportional to the level of water retention rate. (kimacellulose.com)
  • With the growing demand for high-quality cellulose ethers in industries such as medicine, food, and daily chemicals, the domestic demand for other cellulose ether products other than CMC is increasing. (kimacellulose.com)
  • Among the above cellulose ethers, methyl cellulose and hydroxypropyl methyl cellulose have higher water retention rates. (kimacellulose.com)
  • Hence, hydrogel properties can be varied by stimuli including pH, temperature, light etc (Fenn et al. (cheapjewelryus.com)
  • Thermoresponsive propertyThermoresponsiveness, a term used to imply a drastic and critical change in the physical properties over a small temperature range. (cheapjewelryus.com)
  • 2012). Upper critical and lower critical solution temperature is determined by the presence of miscibility gap at high or low temperatures respectively. (cheapjewelryus.com)
  • Lower critical solution temperature (LCST) formulation is liquid at room temperature (20-25°C), undergoes gelation in contact with body fluid (35-37°C). Whereas Upper critical solution temperature (UCST) formulation is liquid at higher temperatures (50-60°C), undergoes gelation in contact with body fluid (35-37°C). However these thermoresponsive gels can crosslinked either through physical or covalent interactions. (cheapjewelryus.com)
  • Generally, the higher the temperature, the worse the water retention. (kimacellulose.com)
  • The ring-opening polymerization (ROP) of tetrahydrofuran (THF) and ε-caprolactone (CL) was performed at 160 o C for 2 hr under N 2 ambiance by using two different dyes such as fluorescein (Flur) and rhodamine6G (R6G) as novel initiators. (researchsquare.com)
  • Polyelectrolyte properties are intrinsic, not only to a multitude of single macromolecules, but also to their organized structures and molecular assemblies. (mdpi.com)
  • Understanding and controlling the molecular features that impart a favourable backbone orientation and facilitate close intermolecular interactions are required to optimise morphology and long-range order for efficient charge transport. (nature.com)
  • Central to many of these design approaches is to introduce molecular functionality that can induce dipole−dipole interactions, facilitating close intermolecular packing, short π−π distances, and therefore potentially optimal morphology for transport 8 . (nature.com)
  • Hence, the aim this project aims to enhance the stability of the Gellan gum based hydrogels in addition to incorporate stimuli responsive sol-gel transition. (cheapjewelryus.com)
  • In addition, a high electron affinity is also required for ambient stability, as it prevents common redox reactions involving water and oxygen which can occur under device operation, and lead to degradation. (nature.com)
  • In this respect, the DSOS group addresses all three parts of the 'photovoltaic triangle', i.e. efficiency, stability, and cost, with dedicated (Ph.D.) research projects, pursuing the rationalization of structure-property relations. (uhasselt.be)
  • Due to its chemical resistance, high tensile strength, and light weight, HDPE is a prominent commodity plastic with over 50 million metric tons produced annually at a value of 63 billion US dollars. (umn.edu)
  • The electron withdrawing bis-lactam functionality in these structures are responsible for increasing electron affinity and is typically diluted by the requirement for a more electron rich repeat unit to undergo a transition metal-mediated cross coupling polymerisation. (nature.com)
  • With help of the Molecularium - a spaceship that can shrink to nanoscale sizes - the group explores the "secret worlds" and molecular structures of everyday objects including a snowflake, chewing gum, a penny, and even a human cell. (rpi.edu)
  • Amide group has a high chemical activity which can forms a series of derivatives with many kinds of compounds. (atamanchemicals.com)
  • Particular emphasis has been given to the methods used for incorporating bioactive compounds into film-forming solutions and their influence on the functional properties of biopolymer films. (encyclopedia.pub)
  • Size selectivity controls the H 2 /CH 4 separation, however, because high selectivity is observed at 520 K. (mrs.org)
  • We processed ultramicroporous silica membranes with reproducible high permeances and high separation factors (3 x 10 -4 cm 3 (STP)/s/cm 2 /cmHg and 160, respectively) exceeding that of the best-known membranes for separation of a 50/50 (v/v) CO 2 /CH 4 gas mixture. (mrs.org)
  • Single gas permeation through SAPO-34 membranes decreased with molecular size for H 2 , CO 2 , N 2 , CH 4 , and n-C 4 H 10 . (mrs.org)
  • Thus, development of new methods to control the properties and processability of HDPE is vital for reducing the energy costs of polyolefin processing and minimizing the quantity of plastic used in commercial grade materials. (umn.edu)
  • A team of researchers from the Fors and Coates groups at Cornell investigated the effects of MWD shape on the properties and processability of HDPE. (umn.edu)
  • leading to future promise in lowering processing energies of HDPE production without compromising material properties. (umn.edu)
  • Most food packaging is produced from synthetic materials from non-renewable sources, which, despite having excellent barrier and resistance properties, are causing serious environmental problems due to the generation of high amounts of non-degradable solid waste [ 1 ] . (encyclopedia.pub)
  • See, N. R. Legge, "Thermoplastic elastomer categories: a comparison of physical properties", ELASTOMERICS, pages 14-20 (Sept. 1991), and references cited therein. (allindianpatents.com)
  • In order to enhance the properties of hydrogels, the polymer chains are modified with stimuli responsive functional groups. (cheapjewelryus.com)
  • 28 ] studied the ROP efficiency of various functional groups towards the polymerization of CL by ROP. (researchsquare.com)
  • Its usefulness as adsorbent for the removal of iron as contaminants from industrial lean methyl diethanol amine solvents (MDEA, 50 weight % used by GASCO Company, Abu Dhabi for natural gas sweetening) was tested. (madridge.org)
  • For the removal of carbon dioxide from natural gas prior to delivery to a pipeline, membranes are more advantageous than conventional amine adsorption processing for use on offshore platforms, high CO 2 content wells, small gas streams or environmentally sensitive areas. (mrs.org)
  • In addition to the rheology modifiers, SNF is back integrated into the conditioning agents for shampoos, conditioners, creams, and hair mask raw materials. (snf.com)
  • MARV assembles and buds from the host cell plasma where MARV matrix protein (mVP40) dimers associate with anionic lipids at the plasma membrane inner leaflet and undergo a dynamic and extensive self-oligomerization into the structural matrix layer. (uci.edu)
  • These characteristics are desirable for high charge carrier mobilities. (nature.com)