合成纤维

2005, (04) 15-19

[打印本页] [关闭]
本期目录(Current Issue) | 过刊浏览(Past Issue) | 高级检索(Advanced Search)

对苯二胺改性间位芳香族聚酰胺的合成及热性能研究
Synthesis of Modified PPDA /Poly(m -phenylene isophthalamide) and it's Heat-resistant Properties Investigation

谢欣宇,陈蕾,顾新飞,胡祖明,刘兆峰
XIE Xin-yu, CHEN Lei, GU Xing-fei, HU Zu-ming, LIU Zhao-feng (State Key Laboratory for Modification of Polymeric Fibers and Materials , Donghua University, Shanghai 200051)

摘要(Abstract):

采用低温溶液法共缩聚反应合成了5% ̄15%的对苯二胺(PPDA)改性间位芳香族聚酰胺(PMIA)共聚物。用1HNMR对改性共聚物进行了分析,讨论了PPDA的含量对共聚物比浓对数黏度的影响;对改性聚合物和PMIA纤维进行了热失重分析,并用红外光谱跟踪法探讨了PMIA和共聚物的热降解过程。实验结果表明,用PPDA改性后的共聚物具有更优异的热性能。
Poly (m -phenyleneisophthalam ide)w ith 5 %  ̄15 % m ole ratio ofPPD A w asprepared by the m ethod of low-temperature-solution polycondensation in DMAc. The copolymer was characterized by 1H NMR, the effects of the mole ratio of PPDA to MPD on ηinh were investigated .Copolymers and PMIA and Nomex fiber were analsized by TGA. The pyrolysis process of a copolymer and PMIA was detected by FTIR and a initial explanation was given to the mechanism of their heat degradation. All the results showed the copolymer exhibited more excellent heat-resistant properties than PMIA.

关键词(KeyWords): 间位芳香族聚酰胺;对苯二胺;共聚;热性能
poly(m -phenyleneisophthalam ide),PPD A ,copolym erization,heat-resistantproperties

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 谢欣宇,陈蕾,顾新飞,胡祖明,刘兆峰
XIE Xin-yu, CHEN Lei, GU Xing-fei, HU Zu-ming, LIU Zhao-feng (State Key Laboratory for Modification of Polymeric Fibers and Materials , Donghua University, Shanghai 200051)

Email:

DOI:

扩展功能
本文信息
服务与反馈
本文关键词相关文章
本文作者相关文章
中国知网
分享