Poly(acrylonitrile-co-vinylcatecholborane): A new precursor for carbon containing B/C, B/N and B/O species

被引:19
作者
Hu, R [1 ]
Chung, TC [1 ]
机构
[1] PENN STATE UNIV,DEPT MAT SCI & ENGN,UNIVERSITY PK,PA 16802
关键词
vinylcatecholborane; PAN copolymer; B/C material; oxidation stability;
D O I
10.1016/0008-6223(95)00212-X
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
This paper describes a new PAN copolymer, poly(acrylonitrile-co-vinylcatecholboran), which is a precursor for carbon material containing B/C, B/N and B/O species in its molecular structures. Vinylcatecholborane, containing an appropriate protecting group in the borane moiety, can be copolymerized with acrylonitrile to high molecular weight copolymers under free radical polymerization conditions. The copolymers are processible by solution and melt methods. From B-11 NMR studies, a clear B-N complex was formed in poly(acrylonitrile-co-vinylcatecholboran) copolymer. The carbonation and oxidative studies of poly(acrylnitrile-co-vinylcatecholborane) indicate effective interconversions of copolymers to various graphite-like structures containing B/C, B/N and B/O species, which show significantly higher oxidative stability than pure carbon material obtained from PAN under the same conditions. Copyright (C) 1996 Elsevier Science Ltd
引用
收藏
页码:595 / 600
页数:6
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