Web开馆时间：周一至周日7:00-22:30 周五 7:00-12:00; 我的图书馆 WebDec 2, 2013 · The surface and micellar properties of cationic gemini surfactant butanediyl-1, 4-bis(dimethyldodecylammonium bromide), referred to as C 12-C 4-C 12, has been studied in pure aqueous solutions and in the presence of alcohols (butanol (C 4 OH), pentanol (C 5 OH), hexanol (C 6 OH)), and the corresponding amines (butylamine (C 4 …
Did you know?
WebThe viscoelastic properties of the wormlike micellar solutions of 2-hydroxyl-propanediyl-α,ω-bis(dimethyldodecylammonium bromide) and 2-hydroxyl-propanediyl-α,ω-bis(dimethyltetradecylammonium bromide), abbreviated as 12-3(OH)-12 and 14-3(OH)-14, respectively, have been investigated using steady state and frequency sweep rheological … WebJul 15, 2008 · Esterquat cationic surfactant was considered as a new type of biodegradable material utilized as a textile softening agent. In this work, cationic lauric ester quaternary ammonium salt (N-(2-hydroxyl-3-lauryloyloxypropyl) dimethyldodecylammonium chloride (HDAC)) was obtained via reaction between lauric acid and N-(2,3-epoxypropyl) …
WebFeb 1, 2011 · The objective of this study is to investigate the substitution effect of methoxy, amino, hydroxyl, chloride and nitro group on the inhibitive properties of 4-(N,N,N … WebJul 15, 2001 · The pressure-jump relaxation technique has been used for a study of the kinetics of micellar equilibria in aqueous solutions of cationic surfactant dimers of the alkanediyl-α-ω-bis(dodecyldimethylammonium bromide) type with alkanediyl=(CH 2) 2, (CH 2) 3, (CH 2) 4, (CH 2) 6, and (CH 2) 8.Owing to experimental constraints the …
WebJun 15, 2024 · A novel chitosan derivative, O-acrylamidomethyl-N-[(2-hydroxy-3- dimethyldodecylammonium) propyl] chitosan chloride (NMA-HDCC), was synthesized by reacting chitosan (CTS) with epoxypropyl dodecyl dimethyl quaternary ammonium salt and N-methylolacryl amide (NMA). The chemical structure of the quaternized chitosan was … WebMay 27, 2009 · As concerns the family of gemini surfactants [1–4], for the series of (oligooxa)-alkanediyl-α,ω-bis(dimethyldodecylammonium bromide) (12-EO x-12) where 0≤x≤3 , the ΔH° m values increase with the number of the ethylene oxide (EO) groups in the spacer. Such findings were interpreted by invoking: 1) the transferring of the spacer from ...
WebThe concentrations of other components are 0.10 g L−1 α-CT, 0.081 mmol L−1 2-NA, 10 mmol L−1 PBS (pH 7.3) and 3 (v/v)% glycol, respectively. The enzyme was incubated for …
WebFeb 1, 2011 · The corrosion inhibitors were synthesized by two steps. In the first step, quaternization reaction was carried out between p-N,N-dimethylaminobenzaldehyde and dodecyl bromide in ethanol for 12 h to yield p-(N,N,N-dimethyldodecylammonium bromide) benzaldehyde and recrystallized from ethanol [18].In the second step, … sampling techniques with picturesWebChina Dodecyl Dimethyl Ammonium Bromide manufacturers - Select 2024 high quality Dodecyl Dimethyl Ammonium Bromide products in best price from certified Chinese Ammonium Sulphate Fertilizer, Ammonium Sulfate Fertilizers suppliers, wholesalers and factory on Made-in-China.com sampling the empire\u0027s finest wow questWeb씨스켐닷컴 - 화학시장정보, 석유화학제품가격, 화학뉴스, 화학플랜트신증설프로젝트, 화학제조업체, 화학컨설팅시장조사, 석유화학계통도, 화학제품사전, CAS No., 스페셜티케미칼, 파인케미칼, 정밀화학, 화학시장보고서, 화학단행본, 난연제(Flame Retardant), 플라스틱첨가제, 가소제(Plasticizer), 도료 ... sampling testing and reporting guideWebN,N-Dimethyldodecylamine has been used:. as a capping agent during the synthesis of Au(core)-Pd(shell) bimetallic nanoparticles in toluene; in the synthesis of N-alkyl-N,N … sampling theorem and bandwidthWebDec 2, 2013 · The surface and micellar properties of cationic gemini surfactant butanediyl-1, 4-bis(dimethyldodecylammonium bromide), referred to as C 12-C 4-C 12, has been … sampling theorem definitionWebMay 18, 2016 · After 2 days of treatment with the drug, there was a significant decrease in pain and inflammation. The drug elicited a good response, improved prognosis and reduced the number of days of illness. Mechanism of action. Domiphen bromide is a quaternary antiseptic with actions and uses similar to those of cationic surfactants. Absorption. sampling theorem derivationWebSep 1, 2015 · A Bronsted acidic ionic liquid, 3-(N,N-dimethyldodecylammonium) propanesulfonic acid hydrogen sulphate ([DDPA][HSO4]), has been successfully applied to catalyze sequential oxidation of aromatic … Expand sampling theorem and aliasing