Fabrication of solid polymer electrolyte based on block-graft copolymer. 1. Precision synthesis and characterization of polystyrene-block-[poly(p-hydroxystyrene)-graft-poly(ethylene oxide)]-block-polystyrene

被引：24

作者：

Hirahara, K

Takano, A

Yamamoto, M

Kazama, T

Isono, Y ^{[1
]}

Fujimoto, T

Watanabe, O

机构：

[1] Nagaoka Univ Technol, Dept Chem, Nagaoka, Niigata 9402188, Japan

[2] Shin Etsu Chem Co Ltd, Specialty Chem Res Ctr, Kubiki, Niigata 942, Japan

来源：

REACTIVE & FUNCTIONAL POLYMERS | 1998年 / 37卷 / 1-3期

关键词：

living anionic polymerization; block-graft copolymer; poly(ethylene oxide); solid polymer electrolyte; ionic conductivity;

D O I：

10.1016/S1381-5148(97)00132-6

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Block-graft copolymer, poly(St)-block-[poly(HSt)-graft-poly(EO)]-block-poly(St) was prepared from styrene (St), p-tert-butoxystyrene (BuOSt), and ethylene oxide (EO) in four steps through anionic polymerization: (1) block copolymerization of St, BuOSt, and St; (2) deprotection of tert-butoxy group; (3) potassiation of phenolic OH; (4) graft copolymerization of EO initiated from phenoxide anion. The samples obtained were confirmed to have predictable number and length of graft chains as well as predictable length of backbone triblock copolymer and narrow molecular weight distributions by precise characterization using osmometry, H-1 and C-13-NMR. Th,,ample showed very clear microphase separation structure and the sample/LiClO4 complex showed high ionic conductivity. The block-graft copolymer is expected to be a new class of material for solid polymer electrolyte. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：169 / 182

页数：14

共 33 条

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