私密直播全婐app免费大渔直播,国产av成人无码免费视频,男女同房做爰全过程高潮,国产精品自产拍在线观看

當前位置:群英聚首 > 論文著作 > 正文
RAFT-mediated batch emulsion polymerization of styrene using poly[N-(4-vinylbenzyl)-N,N-dibutylamine hydrochloride] trithiocarbonate as both surfactant and macro-RAFT agent
來源:張望清研究員個人網站 發布日期:2012-09-26
作者:Xu, Jianxiong; Wang, Xiaohui; Zhang, Yaoyao; 等.
關鍵字:RAFT-mediated batch emulsion polymerization
論文來源:期刊
具體來源:JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
發表時間:2012年

onlinelibrary.wiley.com/doi/10.1002/pola.26025/abstract

Poly[N-(4-vinylbenzyl)-N,N-dibutylamine hydrochloride] trithiocarbonate, which contains the reactive trithiocarbonate group and the appending surface-active groups, is used as both surfactant and macromolecular reversible addition-fragmentation chain transfer (macro-RAFT) agent in batch emulsion polymerization of styrene. Under the conditions at high monomer content of similar to 20 wt % and with the molecular weight of the macro-RAFT agent ranging from 4.0 to 15.0 kg/mol, well-controlled batch emulsion RAFT polymerization initiated by the hydrophilic 2-2'-azobis(2-methylpropionamidine) dihydrochloride is achieved. The polymerization leads to formation of nano-sized colloids of the poly[N-(4-vinylbenzyl)-N,N-dibutylamine hydrochloride]-b- polystyrene-b-poly[N-(4-vinylbenzyl)-N,N-dibutylamine hydrochloride] triblock copolymer. The colloids generally have core-shell structure, in which the hydrophilic block forms the shell and the hydrophobic block forms the core. The molecular weight of the triblock copolymer linearly increases with increase in the monomer conversion, and the values are well-consistent with the theoretical ones. The molecular weight polydispersity index of the triblock copolymer is below 1.2 at most cases of polymerization. (c) 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012

Copyright © 2005 Polymer.cn All rights reserved
中國聚合物網 版權所有
經營性網站備案信息

京公網安備11010502032929號

工商備案公示信息

京ICP證050801號

京ICP備12003651號

主站蜘蛛池模板: 固原市| 诸城市| 舒兰市| 大足县| 永靖县| 温泉县| 阿巴嘎旗| 公安县| 府谷县| 称多县| 克拉玛依市| 雷州市| 翁源县| 祁东县| 华容县| 宿迁市| 新乡县| 永安市| 上饶县| 广东省| 陇西县| 新泰市| 格尔木市| 汝南县| 巨鹿县| 德化县| 呈贡县| 马尔康县| 河东区| 永登县| 黄石市| 海兴县| 定结县| 赤壁市| 济宁市| 普兰店市| 昌吉市| 兴业县| 肥东县| 元谋县| 崇明县|