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Effect of Polymers on the Cloud Point of Dodecyl-polyoxyethylene Polyoxypropylene Ether Nonionic Surfactants
Mu Jianhai,Li Ganzuo,Chen Wenjun,Li Ying
Author NameAffiliation
Mu Jianhai Key Laboratory for Colloid and Interface Chemistry of State Education Ministry, Shandong University, Jinan 250100 
Li Ganzuo Key Laboratory for Colloid and Interface Chemistry of State Education Ministry, Shandong University, Jinan 250100 
Chen Wenjun Key Laboratory for Colloid and Interface Chemistry of State Education Ministry, Shandong University, Jinan 250100 
Li Ying Key Laboratory for Colloid and Interface Chemistry of State Education Ministry, Shandong University, Jinan 250100 
Abstract:
The effects of poly(ethylene glycols) with different molecular weight (PEG1000, PEG2000, PEG6000) and polyvinylpyrrolidone with different polymerization degree (PVP-K30, PVP-K90) on the cloud point of nonionic surfactant dodecyl polyoxyethylene polyoxy propylene ether C12H25O(EO)m(PO)nH (LS36,m=3, n=6; LS45,m=4, n=5; LS54,m=5, n=4) were studied in the paper. It is found that a higher polymer concentration can result in a significant decrease on the cloud point of the aqueous surfactant solutions because of the formation of corona-shaped intra-chain micelles which indicate that the micelle-micelle interaction is attractive and can be expected to facilitate collisions among the micelles, as well as a slightly increasing at a lower PVP concentration because of the effects of viscosity, charge, and interaction between the polymer and surfactant.
Key words:  Cloud point, Dodecyl polyoxyethylene polyoxypropylene ether, Nonionic surfactant, Polymer, Poly(ethylene glycols), Polyvinylpyrrolidone
FundProject:国家自然科学基金资助项目(29903006)
聚合物对非离子十二烷基聚氧乙烯聚氧丙烯醚浊点的影响
牟建海,李干佐,陈文君,李英
摘要:
测定了水溶性高分子聚乙二醇(PEC1000、PEG2000、PEG6000)和聚乙烯吡咯烷酮(PVP-K30、PVP-K90)对三种非离子表面活性剂十二烷基聚氧乙烯聚氧丙烯醚C12H25O(EO)m(PO)nH(LS36,m=3,n=6;LS5,m=4,n=5;LS54,m=5,n=4)浊点的影响.结果表明,聚乙二醇(PEG)可使三种表面活性剂水溶液浊点降低;而聚乙烯吡咯烷酮(PVP)随其浓度增加,表面活性剂溶液浊点先升高然后又下降;浊点下降程度与聚合物浓度和分子量有关.
关键词:  十二烷基聚氧乙烯聚氧丙烯醚  浊点  聚合物  聚乙二醇  聚乙烯吡咯烷酮
DOI:10.1088/1674-0068/14/1/119-124
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