【摘要】 <正> 自五十年代以来,耐热的杂环高分子取得了很多进展。曾报道聚酰亚胺、聚苯并咪唑、聚苯并噻唑、聚苯并噁唑、聚喹噁林及聚苯并噁嗪酮等都是性能较好的耐热高分子,而有些在工业上已得到应用。我们在进行芳杂环二腈聚合的工作中,曾将上述杂环结构引入二腈,以期获得性能优良的耐热高分子,所得结果已陆续报道。更多还原

【Abstract】 The oxidative thermal stability of two series of thirteen model compounds Ⅰ-XIII containing benzothiazole, benzoxazole, benzimidozole, phthalimide, benzoxazinone and quinoxaline ring was measured:The results indicated that the order of oxidative thermal stability of these two series of model compounds arc Ⅰ > Ⅱ Ⅶ, Ⅳ, Ⅵ > Ⅲ > Ⅴ and Ⅷ > Ⅸ > Ⅺ > XIII, Ⅻ > Ⅹ, respectively. Compound with benzothiazole ring possesses the best oxidative thermal stability, and the next is that with benzoxazole ring, then that with phthalimide ring, The oxidative thermal stability of compounds with the other three heterocyclic ring is not so good.更多还原