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Soluble N-substituted poly(benzimidazole imide)s via C-N coupling reaction  
Soluble N-substituted poly(benzimidazole imide)s via C-N coupling reaction
资料类型: PDF文件
关键词: N-substituted  poly(benzimidazole  imide)s  heat-resistant  polymer  C?N  coupling  
reaction  good  solubility  
资料大小: 940k
所属学科: 高分子化学
来源: 来源网络
简介:
Novelheat-resistantN-substitutedpoly(benzimidazole imide)s (PBIIs)withgoodsolubilitywere synthesized via aC?Ncoupling reaction. A model reaction was carried out to assist in determining the optimal reaction conditions for the polymerization and to elucidate the chemical structures of the polymers. The structures of the resulting polymers were characterized by means of Fourier transform infrared and elemental analysis; the results showed good agreement with the proposed structures. The resulting PBIIs exhibited high glass transition temperatures (Tg >290 oC) and good thermostability (T5% >440 oC). The thermal behavior in air of the PBII polymers suggests that they can be considered as a new class of high performance polyimides.
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