化工学报2018，Vol.69Issue(2)：823-829,封3,8.DOI:10.11949/j.issn.0438-1157.20171037
聚偏氟乙烯-b-聚乙烯基吡咯烷酮嵌段共聚物的制备和结构
Synthesis and structure of amphiphilic poly(vinylidene fluoride)-b-poly(N-vinylpyrrolidone) block copolymers
黄志辉 1刘进朝 2包永忠1
作者信息
- 1. 化学工程联合国家重点实验室,浙江大学化学工程与生物工程学院,浙江 杭州 310027
- 2. 巨化集团有限公司技术中心,浙江 衢州 324004
- 折叠
摘要
Abstract
Iodine terminated poly(vinylidene fluoride) was prepared by iodine transfer emulsion polymerization using C6F13I as a chain transfer agent, and further employed to mediate the iodine transfer solution polymerizaton of N-vinylpyrrolidone to prepare amphiphilic poly(vinylidene fluoride)-b-poly(N-vinylpyrrolidone) (PVDF-b-PVP) block copolymers. The molecular and phase structures of PVDF-b-PVP copolymers were characterized by NMR, IR, XRD, DSC and AFM. It is confirmed that PVP block can be effectively inserted between PVDF block and terminated iodine. The order of PVDF chains in the block copolymers was decreased after the incorporation of PVP, resulting the formation of more γ phase PVDF crystals, and the decrease of crystallization temperature and crystallinity degree of PVDF. PVDF-b-PVP copolymers were microphase-separated with a domain size of about 20 nm, and exhibited better hydrophilicity than PVDF homopolymer.关键词
聚合物/合成/结晶/聚偏氟乙烯/聚乙烯基吡咯烷酮/嵌段共聚物Key words
polymer/synthesis/crystallization/poly(vinylidene fluoride)/poly(N-vinylpyrrolidone)/block copolymer分类
化学化工引用本文复制引用
黄志辉,刘进朝,包永忠..聚偏氟乙烯-b-聚乙烯基吡咯烷酮嵌段共聚物的制备和结构[J].化工学报,2018,69(2):823-829,封3,8.
