文献类型：期刊文献

英文题名：Synthesis, Characteristics, and Phase Behavior of a Thermosensitive and pH-Sensitive Polyelectrolyte

作者：Zhou, Wenting[1];An, Xueqin[1];Gong, Jun[1];Shen, Weiguo[1];Chen, Zhiyun[1];Wang, Xiaoyong[1]

机构：[1]E China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2011

卷号：121

期号：4

起止页码：2089

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：20111913963347);WOS:【SCI-EXPANDED(收录号:WOS:000291438200026)】；

基金：Contract grant sponsor: National Natural Science Foundations of China; contract grant numbers: 20673059, 21073063.Contract grant sponsor: Committee of Science and Technology of Shanghai; contract grant number: 08jc1408.Contract grant sponsor: Fundamental Research Funds for the Central Universities; contract grant number: WK0913002.

语种：英文

外文关键词：poly(NIPAM-co-MAA-co-ODA); thermosensitive; pH-sensitive; phase behavior; micelles

摘要：A series of poly(N-isopropylacrylamide-co-methacrylic acid-co-octadecyl acrylate) (poly(NIPAM-co-MAA-co-ODA)) with different monomer molar ratios was synthesized. Critical micelle concentration (CMC) of the polyelectrolyte solution was determined and the CMC increase with methacrylic acid content in the polyelectrolyte. The phase behaviors of the polyelectrolyte solution were studied, and the effects of various factors on the phase transition were discussed. The experimental results indicate that the lower critical solution temperature and the phase transition pH depend on the monomer molar ratio in the polyelectrolyte. Effect of polyelectrolyte concentration on phase transition pH was studied, and results shown that the phase-transition pH is independent of the polyelectrolyte concentration. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 121: 2089-2097, 2011