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Polymer Colloidal Complexes of Ionomers and Oil-Soluble Surfactants

离聚物和油溶性表面活性剂的聚合物胶体复合物

基本信息

批准号：
9311658
负责人：
William MacKnight
金额：
$ 31.26万
依托单位：
University of Massachusetts Amherst
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
1994
资助国家：
美国
起止时间：
1994-02-15 至 1997-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9311658&HistoricalAwards=false
关键词：
Polymer Colloidal Complexes Ionomers Oil

项目摘要

9311658 MacKnight Recent preliminary results have demonstrated complex formation between sulfonated polystyrene ionomers and oil-soluble surfactants in non-polar media resulting in the formation of a new type of nonstoichiometric polyelectrolyte-oppositely charged surfactant complex which is soluble in some low-polarity solvents. The proposed research will be devoted to two subjects: an investigation of complexation between ionomers and oil-soluble surfactants and the study of the structure and properties of such complexes in non-polar media; and synthesis, investigation of structure and properties of novel nonstoichiometric polyelectrolyte-water soluble surfactant complexes with a slight excess of non-complexed polyelectrolyte ionic groups. The study of the influence of the chemical structure of ionomer and surfactant and their initial aggregation state on complexation and the structure of the aggregates will provide a basis for quantitative modeling of ionomer-surfactant interactions in non- polar media. The experimental approach to the characterization of the aggregates will include viscometry, sedimentation velocity, dynamic, and static light scattering as well as x-ray scattering. Differential scanning calorimetry, dynamic mechanical and dielectric relaxation will be used to determine properties for these complexes in non-polar solutions and in the bulk. ***

9311658麦克奈特最近的初步研究结果表明，磺化聚苯乙烯离聚体与油溶性表面活性剂在非极性介质中形成络合物，从而形成一种新型的非化学计量比聚电解质-相反电荷表面活性剂络合物，该络合物可溶于一些低极性溶剂。本研究将致力于两个主题：一是离聚体与油溶性表面活性剂的络合作用及其在非极性介质中的结构和性质的研究；二是新型非化学计量比聚电解质-水溶性表面活性剂络合物的合成、结构和性能的研究。研究离聚体和表面活性剂的化学结构以及它们的初始聚集状态对络合作用和聚集体结构的影响，将为非极性介质中离聚体与表面活性剂相互作用的定量模拟提供基础。表征聚集体的实验方法将包括粘度计、沉降速度、动态和静态光散射以及X射线散射。差示扫描量热法、动态机械松弛和介电松弛将被用来确定这些络合物在非极性溶液和块体中的性质。***