{"title":"The interaction of ester functionalized amide gemini surfactants with polymers","authors":"Yue Lei, Yue Liu, Yuheng Li, Xiaohao Lu, Haiyan Gao, Hujun Xu","doi":"10.1515/tsd-2023-2515","DOIUrl":null,"url":null,"abstract":"Abstract In this study the interaction between the esterified amide gemini surfactant C 12 -(BAE)-C 12 , where BAE stands for the bis(acetoxy)ethane linking group, and the non-ionic polymer polyvinylpyrrolidone (PVP) was investigated by the surface tension method. It was found that there was no apparent interaction between them. The interaction between C 12 -(BAE)-C 12 and sodium polyelectrolyte polyacrylate (NaPAA) was investigated by surface tension, micropolarity and turbidity measurements. The results showed that there was a strong interaction between them. The aggregates were formed by electrostatic attraction between the molecules of C 12 -(BAE)-C 12 and NaPAA in the bulk. This process led to the appearance of two inflection points, the critical aggregation concentration ( cac ) and the critical micelle concentration (CMC), on the surface tension and micropolarity curves. In addition, the inorganic salt NaBr had two opposite effects, promoting or inhibiting the interaction between C 12 -(BAE)-C 12 and NaPAA. This was related to the concentration of NaBr itself.","PeriodicalId":22258,"journal":{"name":"Tenside Surfactants Detergents","volume":null,"pages":null},"PeriodicalIF":1.2000,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Tenside Surfactants Detergents","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1515/tsd-2023-2515","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
引用次数: 0
Abstract
Abstract In this study the interaction between the esterified amide gemini surfactant C 12 -(BAE)-C 12 , where BAE stands for the bis(acetoxy)ethane linking group, and the non-ionic polymer polyvinylpyrrolidone (PVP) was investigated by the surface tension method. It was found that there was no apparent interaction between them. The interaction between C 12 -(BAE)-C 12 and sodium polyelectrolyte polyacrylate (NaPAA) was investigated by surface tension, micropolarity and turbidity measurements. The results showed that there was a strong interaction between them. The aggregates were formed by electrostatic attraction between the molecules of C 12 -(BAE)-C 12 and NaPAA in the bulk. This process led to the appearance of two inflection points, the critical aggregation concentration ( cac ) and the critical micelle concentration (CMC), on the surface tension and micropolarity curves. In addition, the inorganic salt NaBr had two opposite effects, promoting or inhibiting the interaction between C 12 -(BAE)-C 12 and NaPAA. This was related to the concentration of NaBr itself.
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