文献类型：期刊文献

英文题名：Synthesis and Characterization of Polystyrene Oligomers with Several Pendent Epoxy Groups

作者：Zhang, Jian[1];Huang, Hui[1];Guan, Yong[1];Wei, Da-Fu[1];Hu, Fu-Zeng[1];Zheng, An-Na[1];Xiao, Hui-Ning[2]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China;[2]Univ New Brunswick, Dept Chem Engn, Fredericton, NB E3B 5A3, Canada

年份：2010

卷号：117

期号：5

起止页码：2566

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：20102413001922);WOS:【SCI-EXPANDED(收录号:WOS:000279996500011)】；

基金：Contract grant sponsor: China National Nature Science Foundation; contract grant number: 50390090.

语种：英文

外文关键词：anionic polymerization; copolymerization; oligomers; polystyrene

摘要：Living polystyryl lithium was synthesized by anionic polymerization under the protection of argon at normal pressure, and styrene, toluene, tetrahydrofuran, and n-butyllithium were used as a monomer, solvent, polar reagent, and initiator, respectively. Then, polystyrene oligomers containing several pendent epoxy groups with well-defined structures and narrow molecular weight distributions (weight-average molecular weight/number-average molecular weight < 1.1) were prepared by the reaction of polystyryl lithium with glycidyl methacrylate. The prepared oligomers were characterized with gel permeation chromatography, Fourier transform infrared spectroscopy, H-1-NMR, and the hydrochloric acid/dioxane argentimetric method. The effects of the glycidyl methacrylate dosage, molar mass of polystyrene precursors, copolymerization time, and temperature on the content of side epoxy groups were also investigated. The results confirm that 1,1-diphenylethylene-end-capped polystyryl carbanion could initiate glycidyl methacrylate in toluene in the presence of lithium chloride and a small amount of tetrahydrofuran, and the content of the side epoxy groups could be adjusted. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 117: 2566-2574,2010