OrganismsDiseasesChemicals and DrugsAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPsychiatry and PsychologyPhenomena and ProcessesDisciplines and OccupationsTechnology, Industry, AgricultureNamed GroupsHealth Care
Polyvinyl AlcoholPolymersPolyvinyl ChloridePolyvinylsAldehydesAlcohol DrinkingWaterSurgical SpongesBiocompatible MaterialsGelatin Sponge, AbsorbableEmbolization, TherapeuticAldehyde DehydrogenasePoloxalenePhenylmercury CompoundsAcrylatesMaterials TestingEnbucrilateMaleic AnhydridesAlcoholsAbelmoschusPolyglycolic AcidAcrylamidesDrug CarriersEthiodized OilTissue EngineeringAbsorbable ImplantsNanoparticlesTissue ScaffoldsFixativesForeign-Body ReactionParticle SizeSurface PropertiesAldehyde OxidoreductasesDrug CompoundingPolyethylene GlycolsOphthalmic SolutionsChemoembolization, TherapeuticPreservatives, PharmaceuticalGelatinViscosityMicrospheresWater SupplyPovidoneSoapsDeodorantsPersonnel, HospitalOff-Label UseHand DisinfectionHygieneHand Hygiene
StarchAcetalsStyrene Based PolymersBiodegradable polymersHydrophilicEstersEmulsionHydrogelsFormaldehydeKetonesType of polymerMonomersCompoundsPolystyreneAcetatePolyPolymerizationHydrogenWidelyHydrogelChitosanBenzeneSuspensionSolubility in waterAmounts of waterLigninPreparationChainsConsumptionDevelopmentsProcessingCompositeFiberConventionalStabilityAbsorbHighMaterialsAgentsIndustries2017PolysaccharidesSolutionsWide rangeApplicationsConcentrationProductsSurfaceChemicalTemperatureFoundResearchersPlastic
Starch7
  • Its most common use are gum acacia, starch either etherified or in its degraded form, dextrin, polyvinyl alchohol and hydroxyethyl cellulose. (niir.org)
  • The water soluble polymers market encompasses several categories, including starch, cellulose ethers, polyvinylacetate, polyvinyl alcohol and other synthetic water soluble polymers. (niir.org)
  • Hydrophilic high-swell hydrogels are in particular polymers of (co)polymerized hydrophilic monomers, graft (co)polymers of one or more hydrophilic monomers on a suitable grafting base, crosslinked cellulose or starch ethers, crosslinked carboxymethylcellulose, partially crosslinked polyalkylene oxide or natural products which swell in aqueous fluids, for example guar derivatives. (vtex.vn)
  • Starch is a semicrystalline polymer which is derived from plants. (degruyter.com)
  • These glycosidic bonds are highly susceptible to the enzymatic hydrolysis under the natural environment and makes the starch a highly biodegradable polymer (5). (degruyter.com)
  • There were some studies reported on reducing the starch composite films biodegradability out of the context of slow release fertilizer by addition of other natural polymers. (degruyter.com)
  • Hydrogels consisting of different volumes of keratin, polyvinyl alcohol (PVA), Polyvinylpyrrolidone (PVP), and starch. (preprints.org)
Acetals2
Styrene Based Polymers1
  • Tert-dodecyl mercaptan is used predominantly as a molecular weight regulator in manufacturing of butadiene and styrene-based polymers. (ataman-chemicals.com)
Biodegradable polymers3
  • Currently, commercial production of slow or control release fertilizer (S/CRFs) depends on non-renewable petroleum derived non-biodegradable polymers, e.g. polyolefin (Meister™ Chisso-Asahi Fertilizer Corporation, Japan), polyalkenes (Nutricote ® , Chisso-Asahi Fertilizer Corporation, Japan) and polyurethane-like resins (Haifa Chemicals Co. Ltd, Israel) (3). (degruyter.com)
  • Therefore, the key motives of exploring biodegradable polymers from renewable resources have been envisaged for effective urea encapsulation and to prolong the supply of nitrogen to plants through delaying its fast release in soil (4). (degruyter.com)
  • The production of biodegradable polymers which are decomposed by microorganisms and photodegradable polymers that are decomposed by sunlight is a priority among researchers. (ijpsr.com)
Hydrophilic4
  • They are networks of flexible hydrophilic polymers, which can be both ionic and nonionic in nature. (vtex.vn)
  • Hydrogels are water-swollen networks, which are cross-linked structures consisting of hydrophilic polymers. (biomedres.us)
  • A hydrogel can be described as a three dimensional network formed by hydrophilic polymers which can expand in water. (biomedres.us)
  • Micelle polymerization is formed by introducing the hydrophobic segment into the hydrophilic polymer segment for copolymerization, and the hydrophobic segment serves as the dynamic cross-linking point of the hydrogel. (encyclopedia.pub)
Esters5
  • The conversion of the polyvinyl esters is usually conducted by base-catalysed transesterification with ethanol: [CH2CH(OAc)]n + C2H5OH → [CH2CH(OH)]n + C2H5OAc The properties of the polymer are affected by the degree of transesterification. (wikipedia.org)
  • en)Disclosed are novel (meth)acrylic esters of unsaturated amino alcohols, a process for their preparation and their use for preparing crosslinked swellable hydrogel-forming polymers and crosslinked swellable hydrogel-forming polymers. (vtex.vn)
  • The present invention relates to (meth)acrylic esters of unsaturated amino alcohols, a process for their preparation and also their use for preparing crosslinked swellable hydrogel-forming polymers and crosslinked swellable hydrogel-forming polymers. (vtex.vn)
  • DE-A-196 46 484 describes fluid-absorbing polymers which are preparable using a crosslinker-monomer combination consisting of three components, the first component being a compound having a (meth)allyl and a (meth)acrylic ester function, the second component being mono(meth)acrylic esters or mono)(meth)allyl alcohol ethers of polyalkylene glycols and the third component being esters of unsaturated acids with polyols or di- or triallylamine or bisacrylamides. (vtex.vn)
  • Tert-dodecyl mercaptan, 97% Cas 25103-58-6 - used primarily as a molecular weight regulator in polymerizations used, in particular for free-radical polymerizations of vinylic monomers such as of butadiene, styrene, carboxylated styrene, acrylic acid, acrylonitrile, acrylic esters, vinyl ethers or their mixtures, wherein particularly the emulsion in water. (ataman-chemicals.com)
Emulsion3
  • It is used in papermaking, textile warp sizing, as a thickener and emulsion stabilizer in polyvinyl acetate (PVAc) adhesive formulations, in a variety of coatings, and 3D printing. (wikipedia.org)
  • There are various types of polymerization methods of water soluble polymers such as bulk polymerization, solution polymerization, copolymerization, emulsion polymerization and suspension polymerization. (niir.org)
  • Water soluble polymers are used widely as stabilizers or protective colloids in emulsion polymerization. (niir.org)
Hydrogels4
  • Such hydrogels are used as products which absorb aqueous solutions to manufacture diapers, tampons, sanitary napkins and other hygiene articles, but also as water-retaining agents in market gardening. (vtex.vn)
  • Hydrogels have been used in various areas including industry and medicine due to their excellent characteristics such as high swelling capacity, high content of water, compatibility with other biological molecules, controlled chemical and physical properties, high mechanical integrity and biodegradability. (biomedres.us)
  • Hydrogels, owing to their high water load, show flexibility that is similar to natural tissue. (biomedres.us)
  • The route to achieve self-healing of hydrogels is by noncovalent or reversible dynamic covalent bonding in polymeric materials, and enhancing the conductivity of hydrogels by the addition of conductive fillers, conductive polymers or conductive ions. (encyclopedia.pub)
Formaldehyde1
  • Butyraldehyde and formaldehyde afford polyvinyl butyral (PVB) and polyvinyl formal (PVF), respectively. (wikipedia.org)
Ketones1
  • Like many aromatic compounds, it has pleasant smell in pure form but looses the same due to traces of ketones and aldehydes if allowed to oxidize by exposure to air. (slideserve.com)
Type of polymer1
  • Chitosan is such a type of polymer which is degradable in natural environment. (ijpsr.com)
Monomers1
  • Monomers and polymers are of little or no practical use until the raw product from the manufacturing process been transformed by more or less standardized fabrication and processing techniques into useful forms. (niir.org)
Compounds2
  • Furthermore, the rise in industrial activities, especially those that use secondary compounds and high amounts of water in their processes, has increased the concentration in water sources of pollutants, such as metals, radioactive materials, halogenated compounds, persistent organic pollutants, and bioaccumulative and toxic chemicals, such as pesticides. (ncsu.edu)
  • These compounds in synthetic or natural form are also used in pharmacy. (bvsalud.org)
Polystyrene1
  • It is a solvent for polystyrene and many synthetic rubbers, including SBR, but has only a very limited mutual solubility in water. (slideserve.com)
Acetate3
  • Although Polyvinyl Alcohol is often referred to by the acronym PVA, more generally PVA refers to Polyvinyl acetate, which is commonly used as a wood adhesive, sealer and water soluble plastic. (wikipedia.org)
  • Instead, PVA is prepared by hydrolysis of polyvinyl acetate, or sometimes other vinyl ester-derived polymers with formate or chloroacetate groups instead of acetate. (wikipedia.org)
  • Since the inside of equipment was washed with distilled water at the shifting phase from each condition to the other condition, acetate and nitrate did not exist simultaneously during the work. (kyushu-u.ac.jp)
Poly4
  • Poly(vinyl alcohol) (PVOH, PVA, or PVAl) is a water-soluble synthetic polymer. (wikipedia.org)
  • Poly (vinyl alcohol) is a water-soluble synthetic polymer. (anmolchem.in)
  • Poly (vinyl alcohol),talc to prevent them cohering. (slideserve.com)
  • For entrapment, DAO was entrapped in a polymeric hydrogel film, i.e. poly(hydroxyl ethyl methacrylate) (pHEMA) polymer and deposited onto the teflon membrane of the oxygen electrode. (ijpsr.com)
Polymerization3
  • Unlike most vinyl polymers, PVA is not prepared by polymerization of the corresponding monomer, since the monomer, vinyl alcohol, is thermodynamically unstable with respect to its tautomerization to acetaldehyde. (wikipedia.org)
  • Following polymerization, unreacted monomer may be removed by steam distillation andthe polymer is washed and dried. (slideserve.com)
  • Is the best relative molecular weight regulator and chain transfer agent in the polymerization process of Styrene Butadiene Rubber, Nitrile Rubber, synthetic resin and so on. (ataman-chemicals.com)
Hydrogen1
  • Basic principle involved in Biogenic amines biosensor is the action of diamine oxidase (DAO) that catalyzes the oxidative deamination of primary amines to the corresponding aldehydes, hydrogen peroxide and ammonia. (ijpsr.com)
Widely1
Hydrogel3
  • Swellable hydrogel-forming polymers, known as superabsorbent polymers or SAPs, are known from the prior art. (vtex.vn)
  • By re-contacting the fracture surface, the polymer chain segments interpenetrate and re-establish the dynamic cross-linking sites in the damaged area to repair the network structure of the hydrogel and restore its original mechanical properties and function to a certain extent. (encyclopedia.pub)
  • When the hydrogel is stretched, these physically cross-linked points could dynamically dissociate/associate to reorganize the polymer chains, distributing the applied stress uniformly over the entire network. (encyclopedia.pub)
Chitosan1
  • For example, the derivatized chitosan may be chitosan derivatized with a multifunctional aldehyde, the derivatized chitosan may be chitosan derivatized with a multifunctional epoxide, the derivatized chitosan may be chitosan derivatized with a multifunctional acrylate, or the derivatized chitosan may be chitosan derivatized with genipin. (justia.com)
Benzene1
Suspension1
  • Polyvinyl alcohol is used as an aid in suspension polymerizations. (wikipedia.org)
Solubility in water1
  • Its physicochemical properties such as its poor solubility in water or in organic solvents limit its utilization for a specific application. (ijpsr.com)
Amounts of water1
Lignin2
  • The spearhead programme's main achievements include the development of nanocellulose products, new packaging films and barriers from nanocellulose, hemicellulose and lignin, new production methods for hydroxyacids and their polymers like high performance bio-barrier PGA, the development of novel biocomposites for kitchen furniture, and textile fibres from recycled pulp. (slideshare.net)
  • Increasing of lignin in composite films, the acid to aldehyde ratios of vanillyl and syringyl phenols of the lignin declined from 1.18 to 1.17 (~0.76%) and 1.59-1.56 (~1.78%), respectively. (degruyter.com)
Preparation2
Chains1
  • Whereas the absorption capacity decreases in the superabsorbent particle shell, the core has an improved absorption capacity (compared to the shell) owing to the presence of mobile polymer chains, so that shell construction ensures improved fluid transmission without occurrence of the gel blocking effect. (vtex.vn)
Consumption2
  • Worldwide consumption of polyvinyl alcohol was over one million metric tons in 2006. (wikipedia.org)
  • Also, some local authorities have generated their own standards, such as the European Union's Directives on the Quality of Water intended for Human Consumption (The European Commission 2015), where they considered the WHO recommendations and some other ISO standards to set the parameters values that should be followed by all of their members for 5 microorganisms and 35 principal components. (ncsu.edu)
Developments1
  • Continuous advancements and developments in polymer technology, processing machineries, expertise and cost effective manufacturing is fast replacing the typical materials in different segments with plastics. (niir.org)
Processing1
  • Three factors are essential for any successful processing of polymers, namely materials, machinery and process control. (niir.org)
Composite1
  • Between environmental applications of photocatalysis, TiO2 nanoparticles composite with eco-friendly-prepared, reduced Graphene Oxide (rGO), in combination with visible light, has proved itself to be a high performing photocatalyst for the photodegradation of water pollutants. (mdpi.com)
Fiber1
Conventional2
  • Most conventional coating polymers at present can be produced in a form that will allow them to be solubilized in water. (niir.org)
  • Filtration systems often can provide an ideal alternative to conventional water treatment. (ncsu.edu)
Stability1
  • The applied modification had a clear impact on water sorption and caused a decrease in the thermal stability of most BC films, which was connected with the depletion of geometrical dimensions of cellulose nanofibers observed with AFM. (bvsalud.org)
Absorb2
  • PVA is commonly used in household sponges that absorb more water than polyurethane sponges. (wikipedia.org)
  • To purify eutrophicated waters, some aquatic macrophytes have been accepted to absorb nutrients, such as nitrogen and phosphorus. (kyushu-u.ac.jp)
High2
  • No wonder polymers are found in everything from compact discs to high tech aerospace applications. (niir.org)
  • As water quality is a global concern, the use of natural and sustainable materials is fundamental to obtain high value products that can remediate water systems without generating other pollution sources or require extra energy inputs or high side costs. (ncsu.edu)
Materials4
  • Therefore, various methods have hitherto been considered to improve the conductivity of the supports and various surface coating layers of photographic materials, and it has been attempted to utilize various hygroscopic materials and water-soluble inorganic salts as well as certain kinds of surface active agents, polymers, etc. (justia.com)
  • Polymers are the most rapidly growing sector of the materials industry. (niir.org)
  • This review examines the roles of different natural polymers, composites, and nanoengineered materials that have been studied in the last 10 years for their use in water treatment. (ncsu.edu)
  • The self-healing properties of polymeric materials can be divided into extrinsic and intrinsic self-healing, depending on whether the self-healing component is inserted into the polymer or the original component in the polymer matrix. (encyclopedia.pub)
Agents1
  • A water soluble polymer is a polymer that can be diluted in water, with or without the assistance of co solvents and neutralizing agents, to form transparent solutions. (niir.org)
Industries1
  • These discharged substances from industries contaminate waters, and the increase of normal concentrations of microorganism had raised concerns, leading to the generation of regulations that would enhance public health and improve water quality. (ncsu.edu)
20171
Polysaccharides1
  • The properties of bacterial cellulose (BC)-based films produced by in situ biosynthesis with various polysaccharides (water-soluble pectin, arabinan, rhamnogalacturonan I, arabinoxylan, xyloglucan, glucomannan) were investigated. (bvsalud.org)
Solutions3
  • It is commonly supplied as beads or as solutions in water. (wikipedia.org)
  • These synthetic polymers are the main environmental pollution concerns which have justified finding other alternate green solutions for the fertilizer industry. (degruyter.com)
  • Such body fluids are any water based fluids or liquids excreted from the human body such as urine, menses, serum, blood, sweat, mucous as well as other aqueous solutions generally defined as body fluids. (allindianpatents.com)
Wide range2
  • Water soluble polymers cover a wide range of highly varied families of products of natural or synthetic origin, and have numerous uses. (niir.org)
  • Plastic foams are from a wide variety of polymers have a wide range of applications and are made by a variety of methods depending upon the polymer and the application. (niir.org)
Applications1
  • The book covers classification of water soluble polymers, processes, properties, uses and applications of water soluble polymers with lot of other information. (niir.org)
Concentration1
  • In soil samples with 1% BC, a reduction of over 90% in the total concentration of PAH in the leached water was observed. (univie.ac.at)
Products1
  • Natural ingredients based products are getting popular, as a public concerned toward long term effect of synthetic material in cosmetic formulation increased. (iajpr.com)
Surface1
  • These factors not only lead to financial losses but also pose risks to environment through contamination of ground and surface water and emission of nitrous gases into the air (2). (degruyter.com)
Chemical1
Temperature4
  • Monomer-polymer mixture is then run into a tower which is fitted with heating and cooling jackets and the top of the tower is maintained at temperature of 110°C, the temperature of about 150°C in between and bottom temperature at 180°C. (slideserve.com)
  • At a temperature of 225°C, the solvent and the polymer are removed, condensed and polymer is fed into extruder units, extruded as filaments, granulated, and stored. (slideserve.com)
  • of commercial polymer is 90° to 110°C. Consequence of this Tg value and amorphous nature of material make it hard and transparent at room temperature. (slideserve.com)
  • In addition, global warming has led to an increase in temperature of water, which has affected the normal lifecycles of bacteria and algae, mainly by increasing the duration of bloom seasons. (ncsu.edu)
Found1
  • The World Health Organization (WHO) has provided recommendations for the levels of each contaminant, and these can be found in the Guidelines for Drinking-water Quality, 2011 (World Health Organization 2014). (ncsu.edu)
Researchers1
  • Some researchers define it as a swollen polymeric material retaining a significant volume of water in it without itself being dissolved in water [10]. (biomedres.us)
Plastic1
  • The Indian plastic and polymer industry has taken great strides. (niir.org)