• 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)
  • In the case for FNB resins, the starting point of the polymerization reaction is between two furfuryl alcohol monomers ( FA ) to build up a methylene bridge under water formation, resulting in a condensation product 1 , still featuring a reactive methylol group ( Fig. 1 , top part, orange box). (foundry-planet.com)
  • Made of isopentenyl and free radical polymerizations small monomers, this polycarboxylic acid type high-performance water reducer can make a significant diffe A new type of superplasticizer polycarboxylate, also known as concrete reducer, is polyoxyethylene ether macromonomer made from unsaturated acid, polyoxyethylene monomer and sulfonic acids group monomer through radical polymerization. (abbaworld.com)
  • It is created via the polymerization of PEDOT monomers in a polystyrene sulfonic acid solution. (ossila.com)
  • Over the last ten years, O-carboxyanhydrides (OCA) have attracted increasing attention as ring-opening polymerization (ROP) monomers. (cnrs.fr)
  • 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)
  • The oligomerization of vinyl monomers has been studied to understand the stereochemistry of polymerization and termination reactions. (baumaschinen-knell.de)
  • Methyl chloride also has suitable freezing and boiling points to permit, respectively, low temperature polymerization and effective separation from the polymer and unreacted monomers. (allindianpatents.com)
  • A new type of superplasticizer polycarboxylate, also known as concrete reducer, is polyoxyethylene ether macromonomer made from unsaturated acid, polyoxyethylene monomer and sulfonic acids group monomer through radical polymerization. (abbaworld.com)
  • This bi-functional structure suggest its applications ranging from its use as a monomer in polymerization of sulfonated vinyl-type resins to its use as an organic intermediate in sulfoethylation reactions. (kesslerchemical.com)
  • A dual catalyst associating InCl3 and triethylamine was found to promote controlled ring-opening polymerization of ε-decalactone (ε-DL), a monomer derived from sustainable resources. (cnrs.fr)
  • Polymerization of an AB-type benzoxazine monomer toward different polybenzoxazine networks: When Diels-Alder reaction meets benzoxazine chemistry in a single-component resin. (case.edu)
  • While applying various processes of emulsion polymerization, batch polymerization was chosen to find optimum conditions by investigating the parameters of the monomer percentages, initiators, temperature and time. (medicopublication.com)
  • Sulphonic acid SDBA as emulsifier, as well as sodium dodecyl sulfonic acid SDBAS as co-emulsifier as redox couple initiator have been chosen as the best and most effective initiators to hybrid acrylic resin processing Water-dispersed acrylic resin was developed as a hydrophilic monomer, utilizing acrylic acid. (medicopublication.com)
  • Using the optimized polymerization charge of 1 f ÝC determined previously, arrays of SWNTs-PPY hybrid sensors were fabricated by replacing dopant LiClO4 by L-camphor sulfonic acid, D-camphor sulfonic acid, p-toluene sulfonic acid and sodium dodecyl sulfonate. (escholarship.org)
  • Sodium Vinyl Sulfonate-25% (SVS) is used as polymerizable, non-migratory surfactant or copolymer in emulsion polymerization. (kesslerchemical.com)
  • Sodium Vinyl Sulfonate-25% (SVS) has both an olefinic bond and a reactive sulfonic acid group. (kesslerchemical.com)
  • Genagen SC 35 is a basic surfactant ready-to-use blend of alkyl diglycol ether sulfate sodium salt and coconut fatty acid monoethanolamide. (clariant.com)
  • Polypyrrole was synthesized by chemical oxidation of pyrrole in water containing various sulphonic acids like toluene sulphonic acid (TSA), sulphosalicylic acid (SSA), and camphor sulphonic acid (CSA), as well as a combination of each sulphonic acid with sodium dodecyl benzene sulphonate (NaDBS) to investigate the effect of doping on conductivity, yield, and processability of the conducting polymer. (hw.ac.uk)
  • This will often result in the formation of small cracks as the water eventually evaporates over time, red What is Water reducing agent?Water reducers developed over the years can be categorized as lignosulfonates, hydroxycarboxylic acids, hydroxylated polymers, salts of melamine formaldehyde sulfonates, or naphthalene formaldehyde sulfonic acids. (mis-asia.com)
  • Proteinoid polymers are produced by thermal step-growth polymerization of natural and unnatural amino acids. (nature.com)
  • In the present manuscript we prepared and characterized four model proteinoid polymers and NPs: P(KEf), P(KF), P(EWH-PLLA) and P(KWH-PLLA), where Ef denotes the unnatural herbicidal amino acid glufosinate. (nature.com)
  • Proteinoids - are amino acid-based polymers which are synthesized by thermal step-growth polymerization mechanism. (nature.com)
  • The heterogeneous and highly polymeric nature of the ball-milled cell wall material, in which polymers are of significantly lower degree of polymerization (DP) than in the intact cell wall (where DP of cellulose is ~7000-15000) [ 13 ], results in spectra with broad linewidths and considerable complexity. (biomedcentral.com)
  • A novel approach for the preparation of well-defined graft polymers is applied to poly(ether ether ketone) (PEEK) substrates, using a combination of radiation-induced graft polymerization (RIGP) and atom transfer radical polymerization (ATRP). (elsevierpure.com)
  • As one of the alternative PEMs, acid-functionalized aromatic polymers have been extensively investigated in the last two decades. (csj.jp)
  • 0002] The invention relates to new polymerization processes to produce polymers utilizing bayonette cooled reactor systems and diluents including hy drofluorocarbons. (allindianpatents.com)
  • 0003] Isoolefm polymers are prepared in carbocationic polymerization processes. (allindianpatents.com)
  • Slurry polymerization processes in methyl chloride are used in the production of high molecular weight polyisobutylene and isobutylene-isoprene butyl rubber polymers. (allindianpatents.com)
  • It serves as an emulsifier in various applications, including agricultural herbicides, insecticides, and emulsion polymerization. (oliviaproducts.com)
  • Linear alkylbenzene sulfonic acid is mainly used to produce household detergents including laundry powders, laundry liquids, dishwashing liquids and other household cleaners as well as in numerous industrial applications like as a coupling agent and as an emulsifier for agricultural herbicides and in emulsion polymerization. (chemicalstore.com)
  • In this study, series of hybrid emulsion copolymers with different composition ratios of acrylic acid, methylacrylic acid with butyle-acrylate, methyl-metha-acrylate, polyvinyl alcohol were generated. (medicopublication.com)
  • This strategy demonstrated five component reactions of two equivalents of aldehydes, two equivalents of anilines and (3-keto esters in ethanol using 10 mol% of camphor sulfonic acid at reflux. (lupinepublishers.com)
  • Recently, our group synthesized 1,5-benzodiazepine, α-hydroxy and α-amino phosphonates using camphor sulfonic acid as organ catalyst [7]. (lupinepublishers.com)
  • Also, camphor sulfonic acid (CSA) is achieving enormous significance in organic synthesis, as this catalyst is used in the synthesis of chromans, ligands, and pseudo glycosides, as an auxiliary and in some polymerization reactions [8]. (lupinepublishers.com)
  • So far, to the best of our knowledge, there is no report available on the use of camphor sulfonic acid as an organ catalyst for the synthesis of highly substituted Piperidines. (lupinepublishers.com)
  • The present study features the synthesis of Dodecylbenzene sulphonic acid-doped polypyrrole tungsten oxide (PPy-WO3) nanocomposites and its photocatalyic studies on Methylene Blue (MB). (jwent.net)
  • Resveratrol-based tri-functional benzoxazines: Synthesis, characterization, polymerization, and thermal and flame retardant properties. (case.edu)
  • To conceive the sensor arrays single-walled carbon nanotubes (SWNTs) networks were aligned to bridge a 3 f Ým gap between a pair of prefabricated microelectrodes followed by coating with polypyrrole (PPY) with different dopants by electrochemical polymerization. (escholarship.org)
  • Abraham, D, Jyotsna, TS & Subramanyam, SV 2001, ' Polymerization of pyrrole and processing of the resulting polypyrrole as blends with plasticised PVC ', Journal of Applied Polymer Science , vol. 81, no. 6, pp. 1544-1548. (hw.ac.uk)
  • lignosulfonate lignosulfonate is the by-product of sulfurous acid [4] The molecular weight of lignosulfonate is 2000-5000, and the sulfonate base is 1.25-2.5 Mcq /g. (bailincorp.com)
  • Other five kinds of water-reducing agents: sulfamate high-efficient water reducer, fatty acids high-efficient water reducer, HSB aliphatic superplasticizer, powder polycarboxylate, casein will be introduced. (abbaworld.com)
  • Examples of initiators include Bransted acids such as HC1, RCOOH (wherein R is an alkyl group), and During the polymerization process, in what is generally referred to as the initiation step, isobutylene reacts with the Lewis acid/initiator pair to produce a carbenium ion. (allindianpatents.com)
  • It is a type of anionic surfactant that is derived from linear alkylbenzene (LAB) and sulfonated with sulfuric acid. (oliviaproducts.com)
  • Our solid acid catalysts consist of two neighboring polymer chains, a poly (styrene sulfonic acid) (PSSA) polymer chain catalyzing biomass hydrolysis and its subsequent dehydration to 5-hydroxymethyfurfural (HMF), and a poly (vinyl imidazolium chloride) ionic liquid (PIL) polymer chain helping solubilize lignocellulosic biomass and enhance the catalytic activity. (confex.com)
  • The ATRP of styrene (St) and styrene sulfonic acid ethyl ester (ETSS) has successfully proceeded from the macroinitiators, which are introduced by RIGP of chloromethylstyrene in the solid-state PEEK substrates at 50 °C under conditions where no thermal polymerization takes place. (elsevierpure.com)
  • In this respect, 2-acrylamido-2-methylpropane sulphonic acid (AMPSA), 2- hydroxyethyl methacrylate -2-acrylamido-2-methylpropane sulphonic acid (HEMA-AMPSA) and diethylamino ethyl methacrylate (DEAEMA) were grafted onto silk fibroin by cerium ammonium nitrate initiation. (upt.ro)
  • A: Linear Alkyl Benzene Sulphonic Acid, commonly known as LABSA, is an organic compound with the chemical formula C18H30SO3H. (oliviaproducts.com)
  • Benzoic acid (BA) is a commonly used antimicrobial preservative in food and beverages, especially in carbonated beverages, as it presents its strongest antibacterial activity at pH 2.5 4.0. (chemicalstore.com)
  • Sorbic acid is effective against many microorganisms and is commonly used in baked goods, cheese, and wine products. (chemicalstore.com)
  • A new carboxylic acid-based copolymer was synthesized and evaluated as a superplasticizer. (ntnu.edu.tw)
  • The acidic polymeric PSSA chain was synthesized via surface initiated atom-transfer radical polymerization (ATRP) whereas the adjacent PIL chain was synthesized via UV-initiated radical polymerization. (confex.com)
  • This copolymer was prepared from methacrylic acid and 2-acrylamido-2-methylpropane sulfonic acid through free radical polymerization. (ntnu.edu.tw)
  • Here, a new idea is demonstrated whereby various amino acids including currently used herbicides and potential biostimulants undergo random polymerization by a thermal step-growth mechanism to form herbicidal/biostimulant proteinoid NPs with enhanced stability and/or delivery via the roots and/or leaves. (nature.com)
  • Linear Alkyl Benzene Sulphonic Acid (LABSA) is a versatile chemical compound that finds numerous applications in various industries. (oliviaproducts.com)
  • Q: What is Linear Alkyl Benzene Sulphonic Acid (LABSA)? (oliviaproducts.com)
  • Dual functional polymeric solid acid catalysts are synthesized to facilitate cellulose dissolution and catalyze its hydrolysis and dehydration reactions. (confex.com)
  • Our synthesized solid acid catalysts demonstrate over 97% total reducing sugar yields for cellulose hydrolysis in various ratios of mixed ionic-liquid/gamma-valerolactone solvents in less than 6 hours at 130 o C. Moreover, at slightly elevated temperature of 135 o C, HMF yield of over 70% has been achieved. (confex.com)
  • These solid acid catalysts are stable and maintain high catalytic activity after repeated runs. (confex.com)
  • Thus, softer catalysts and milder reaction conditions can be used, allowing for a better control of the polymerization. (cnrs.fr)
  • MDI-Hb was also digested with trypsin and specific amino acid conjugation sites determined by ultra-performance liquid chromatography-quadruple-tandem time-of-flight mass spectrometry. (cdc.gov)
  • In this context, we successfully overcame this limitation by synthesizing two novel prodrugs introducing the amino acid sequence D-Ala-Leu-Lys (TP). (bvsalud.org)
  • A new approach to the facile preparation of anhydrous proton exchange membrane (PEM) enabled by artificial acid-base pairs is presented herein. (edu.au)
  • Nafion is a perfluorinated polyether with pendant sulfonic acid groups (RSO3H). (wikipedia.org)
  • In the presence of maleic anhydride-dicyclopentadiene copolymers (MADCPD) as a sterical agent, polyaniline (PANI) composites doped with p-toluene sulphonic acid (p-TSA) were successfully synthesized by using kalium persulfate (PSK) as initiator and oxidizing agent. (oldcitypublishing.com)
  • 4 - 6 Those include sulfonated poly(arylene ether)s, 7 - 10 poly(phenylene)s, 11 , 12 and acid-doped poly(benzimidazole)s. 13 , 14 Among them, poly(phenylene)-based PEMs have markedly progressed in recent years with improved proton conductivity, gas impermeability, and chemical stability. (csj.jp)
  • 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)
  • Perfluorosulfonic acid (PFSA) ionomer membranes are commercialized and have been most used for these purposes due to high ion conductivity and reasonable chemical/physical stability under the device operating conditions. (csj.jp)
  • Sulfuric acid 10% solution is made by diluting strong sulfuric acid with water. (chemicalstore.com)
  • Sulfuric acid is used in production of other acids and many sulfates. (chemicalstore.com)
  • Sulfuric acid is one of the most important and widely produced industrial chemicals in the world. (chemicalstore.com)
  • While high purity sulfuric acid is clear, our product is technical grade and may be cloudy and amber color. (chemicalstore.com)
  • Handling and use of sulfuric acid requires training and protective clothing and face mask. (chemicalstore.com)
  • Ethylenediaminetetraacetic acid (EDTA) is a white odorless crystalline powder used as chelating agent in pulp & paper, cleaning, chemical processing, agriculture and water treatment. (chemicalstore.com)
  • Members of the institute have published in a wide range of peer-reviewed journals, including Nature, Molecular Cell, Angewandte Chemie, JACS, Science Advances, Proceedings of the National Academy of Sciences USA, Nucleic Acids Research, Chemical Science and many others. (le.ac.uk)
  • Typically, the polymerization process extensively uses methyl chloride at low temperatures, generally lower than -90°C, as the diluent for the reaction mixture. (allindianpatents.com)
  • Polybutyrolactone tri- and diblock copolymers with well-defined structures and narrow molar distributions were prepared by trifluoromethanesulfonic acid-organocatalyzed ring-opening polymerization of β-butyrolactone initiated with dihydroxylated poly(hydrogenated butadiene) and hydroxylated polystyrene. (cnrs.fr)
  • MDI-protein conjugates were acid digested to obtain free methylene dianiline (MDA). (cdc.gov)
  • The slurry polymerization process in methyl chloride offers a number of additional advantages in that a polymer concentration of approximately 26% to 37% by volume in the reaction mixture can be achieved, as opposed to the concentration of only about 8% to 12% in solution polymerization. (allindianpatents.com)
  • Agglomerated particles tend to adhere to and grow and plate-out on all surfaces they contact, such as reactor discharge lines, as well as any heat transfer equipment being used to remove the exothermic heat of polymerization, which is critical since low temperature reaction conditions must be maintained. (allindianpatents.com)
  • The polymerization and the pump both generate heat and, in order to keep the slurry cold, the reaction system needs to have the ability to remove the heat. (allindianpatents.com)
  • Ferric Reducing Antioxidant Power (FRAP), 2,2-diphenyl-1-picrylhydrazyl (DPPH°) and 2,2'-azino-bis-[3-ethylbenzo-thiazolone-6-sulfonic acid] (ABTS°) scavenging properties of extracts were determined for the antioxidant capacity. (iocv.ir)
  • Here we report an aldol polymerisation scheme that circumvents cross coupling and links repeat units with carbon−carbon double bonds, in contrast to the single bond links in all conjugated polymer backbones prepared in the literature to date. (nature.com)