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
Polymerization of styrene in alcohol/water mediated by a macro-RAFT agent of poly(N-isopropylacrylamide) trithiocarbonate: From homogeneous to heterogeneous RAFT polymerization
來源:張望清研究員個人網站 發布日期:2012-09-26
作者:Wang, Xiaohui; Xu, Jianxiong; Zhang, Yaoyao; 等.
關鍵字:RAFT 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.26022/abstract

The reversible addition fragmentation chain transfer (RAFT) polymerization of styrene in alcohol/water mixture mediated with the poly(N-isopropylacrylamide) trithiocarbonate macro-RAFT agent (PNIPAM-TTC) is studied and compared with the general RAFT dispersion polymerization in the presence of a small molecular RAFT agent. Both the homogeneous/quasi-homogeneous polymerization before particle nucleation and the heterogeneous polymerization after particle nucleation are involved in the PNIPAM-TTC-mediated RAFT polymerization, and the two-stage increase in the molecular weight (Mn) and nanoparticle size of the synthesized block copolymer is found. In the initial homogeneous/quasi-homogeneous polymerization, the Mn and nanoparticle size slowly increase with monomer conversion, whereas the Mn and particle size quickly increase in the subsequent heterogeneous RAFT polymerization, which is much different from those in the general RAFT dispersion polymerization. Besides, the PNIPAM-TTC-mediated RAFT polymerization runs much faster than the general RAFT dispersion polymerization. This study is anticipated to be helpful to understand the polymer chain extension through RAFT polymerization under dispersion conditions. (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: 平昌县| 三穗县| 泰兴市| 锡林浩特市| 合川市| 房产| 雅江县| 灯塔市| 罗山县| 绥棱县| 九台市| 鱼台县| 绿春县| 武强县| 皮山县| 类乌齐县| 广州市| 沈丘县| 巨鹿县| 浦东新区| 乐平市| 名山县| 阜平县| 雷山县| 宁德市| 永春县| 宣武区| 江华| 绥中县| 望都县| 灵璧县| 永德县| 鹤岗市| 百色市| 嘉禾县| 遵义市| 宁城县| 榆林市| 莱阳市| 滨海县| 五常市|