Article: Structure and properties of novel PMDA/ODA/PABZ polyimide fibers.(pyromellitic dianhydride, oxydianiline, aminobenzimidazole)(Technical report)

INTRODUCTION

High-performance polymeric fibers with high strength and modulus for use in engineering applications have undergone significant developments in the last two decades. There is now considerable interest in producing heterocyclic rigid-rod polymers [1, 2]. Some high-performance fibers such as poly(p-phenylene terephthalamide) (Kevlar[TM] or Twaron[TM]) [3], poly(p-phenylene benzobisthiazole) (PBT) [4, 5], poly(p-phenylene benzobisoxazole) (PBO) [6, 7], poly(p-phenylene benzobisimidazol) (PBI) [8-10], and PIPD (M5) [11-14] have been studied by many authors. There are now several kinds of heterocyclic fibers available commercially. As an important member ...

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