Effect of Mixed Micellization Behavior of Gemini Surfactants on Kinetic Hydrolysis of Carboxylate Ester: A Comparative Study With Single Micellization System

IF 1.7 4区化学 Q4 CHEMISTRY, PHYSICAL

International Journal of Chemical Kinetics Pub Date : 2025-09-09 DOI:10.1002/kin.70014

Deepti Tikariha Jangde, Anjali Sinha, Birendra Kumar

{"title":"Effect of Mixed Micellization Behavior of Gemini Surfactants on Kinetic Hydrolysis of Carboxylate Ester: A Comparative Study With Single Micellization System","authors":"Deepti Tikariha Jangde, Anjali Sinha, Birendra Kumar","doi":"10.1002/kin.70014","DOIUrl":null,"url":null,"abstract":"<div>\n \n The hydrolysis of carboxylate ester, that is, p-nitrophenyl acetate (PNPA) with α-nucleophiles, such as acetohydroxamic acid (AHA) and benzohydroxamic acid (BHA), has been studied in mixed surfactant systems (CTAB + C16-10-C16, 2Br−; CTPB + C16-10-C16, 2Br−; CTAB + C16-12-C16, 2Br−; and CTPB + C16-12-C16, 2Br−) at pH 8.0 and 27°C. Each reaction proceeded with pseudo-first-order kinetics. The rate of reactions with a system of mixed gemini surfactants has been shown to accelerate noticeably. The gemini mixed system had a higher rate constant than the single surfactant system. Gemini surfactants' spacer length has been tested in single systems, and their rate data are contrasted with those of monomeric surfactants, such as cetytrimethylammonium bromide (CTAB) and cetytriphenylphosphonium bromide (CTPB).\n </div>","PeriodicalId":13894,"journal":{"name":"International Journal of Chemical Kinetics","volume":"57 12","pages":"697-704"},"PeriodicalIF":1.7000,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Chemical Kinetics","FirstCategoryId":"92","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/kin.70014","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

The hydrolysis of carboxylate ester, that is, p-nitrophenyl acetate (PNPA) with α-nucleophiles, such as acetohydroxamic acid (AHA) and benzohydroxamic acid (BHA), has been studied in mixed surfactant systems (CTAB + C₁₆-10-C₁₆, 2Br⁻; CTPB + C₁₆-10-C₁₆, 2Br⁻; CTAB + C₁₆-12-C₁₆, 2Br⁻; and CTPB + C₁₆-12-C₁₆, 2Br⁻) at pH 8.0 and 27°C. Each reaction proceeded with pseudo-first-order kinetics. The rate of reactions with a system of mixed gemini surfactants has been shown to accelerate noticeably. The gemini mixed system had a higher rate constant than the single surfactant system. Gemini surfactants' spacer length has been tested in single systems, and their rate data are contrasted with those of monomeric surfactants, such as cetytrimethylammonium bromide (CTAB) and cetytriphenylphosphonium bromide (CTPB).

查看原文本刊更多论文

Gemini表面活性剂混合胶束行为对羧酸酯动力学水解的影响——与单一胶束体系的比较研究

本文研究了α-亲核试剂乙酰羟肟酸（AHA）和苯甲羟肟酸（BHA）在混合表面活性剂体系（CTAB + C16-10-C16, 2Br−;CTPB + C16-10-C16, 2Br−;CTAB + C16-12-C16, 2Br−;CTPB + C16-12-C16, 2Br−）中对羧酸酯对硝基苯乙酸酯（PNPA）的水解反应。每个反应都以准一级动力学进行。与混合gemini表面活性剂体系的反应速度已被证明明显加快。gemini混合体系比单一表面活性剂体系具有更高的速率常数。Gemini表面活性剂的间隔层长度在单体系中进行了测试，并与十六烷基三甲基溴化铵（CTAB）和十六烷基三苯基溴化磷（CTPB）等单体表面活性剂的速率数据进行了对比。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

International Journal of Chemical Kinetics 化学-物理化学

CiteScore

3.30

自引率

6.70%

发文量

审稿时长

3 months

期刊介绍： As the leading archival journal devoted exclusively to chemical kinetics, the International Journal of Chemical Kinetics publishes original research in gas phase, condensed phase, and polymer reaction kinetics, as well as biochemical and surface kinetics. The Journal seeks to be the primary archive for careful experimental measurements of reaction kinetics, in both simple and complex systems. The Journal also presents new developments in applied theoretical kinetics and publishes large kinetic models, and the algorithms and estimates used in these models. These include methods for handling the large reaction networks important in biochemistry, catalysis, and free radical chemistry. In addition, the Journal explores such topics as the quantitative relationships between molecular structure and chemical reactivity, organic/inorganic chemistry and reaction mechanisms, and the reactive chemistry at interfaces.