文献类型：期刊文献

英文题名：A "Click Chemistry" Approach to Linear and Star-Shaped Telechelic POSS-Containing Hybrid Polymers

作者：Zhang, Weian[1,2];Mueller, Axel H. E.[1]

机构：[1]Univ Bayreuth, D-95440 Bayreuth, Germany;[2]E China Univ Sci & Technol, Dept Chem, Adv Mat Lab, Shanghai 200237, Peoples R China

年份：2010

卷号：43

期号：7

起止页码：3148

外文期刊名：MACROMOLECULES

收录：;EI(收录号：20101812904165);WOS:【SCI-EXPANDED(收录号:WOS:000276232800007)】；

基金：This work was supported by the National Natural Science Foundation of China (No. 50503013). W.Z. also acknowledges support by the Alexander von Humboldt Foundation.

语种：英文

外文关键词：Atom transfer radical polymerization - Bromine compounds - Chlorine compounds - Synthesis (chemical) - Copper compounds - Stretching

摘要：A click chemistry approach applied in the preparation of telechelic polyhedral oligomeric silsesquioxanes (POSS) containing polymer hybrids by combining with atom transfer radical polymerization (ATRP) was examined. The spectra of 3-propargylcarbonylpropionic chloride (PCPCl) and 3-propargylcarbonylpropionic acid (PCPA) were compared that showed that the broad band from 2225 to 3251 cm -1 disappeared in the spectrum of PCPCl, and a new band appeared at 1785 cm -1, which was assigned to the stretching vibration of carbonyl chloride. The dibromo-terminated polystyrene was synthesized by ATRP using diethyl 2,6-dibromoheptanrdioate as initiator and CuBr/PMDETA as the catalyst. The terminal bromine atoms of polystyrene (PS)-Br2 were easily transformed into azide groups to produce diazido-polystyrene, PS-(N3)2 through nucleophilic substitution. The monobromo-terminated polystyrene (PS-Br) was prepared by using ethyl 2-bromoisobutyrate (EBiB) as initiator.