Poly[2, 6-diimidazo (4,5-b:4’,5’-e) pyridinylene-1,4(2,5-dihydroxy) phenylen] (PIPD) was synthesized and the obtained PIPD/ PPA dope was directly spun into fibers via a dry-jet wet-spinning process for the first tim...Poly[2, 6-diimidazo (4,5-b:4’,5’-e) pyridinylene-1,4(2,5-dihydroxy) phenylen] (PIPD) was synthesized and the obtained PIPD/ PPA dope was directly spun into fibers via a dry-jet wet-spinning process for the first time. The obtained polymers were mainly characterized by ATR-FTIR and dynamic contact angle analysis. FTIR spectrum of the PIPD fibers indicates that the product was consistent with the target product. The contact angle measurements show that the wetting process of water on PIPD fibers is apparently faster than that on PBO fibers. The axial compression bending test indicates that PIPD fibers showed larger compressive strength compared with that of PBO fibers under the same axial compressive load. Meanwhile, the TGA test results indicate that the PIPD fibers have excellent thermal stability.展开更多
聚 (2,5-二羟基-1,4-苯撑吡啶并二咪唑){Poly[2,6-diimidazo(4,5-b:4',5'-e)pyridinylene-1,4(2,5-dihydroxy)phenylen],PIPD}纤维(简称M5)是荷兰Akzo Nobel Central Research 经过 10 多 a 努力研制成功的一种新型刚性聚...聚 (2,5-二羟基-1,4-苯撑吡啶并二咪唑){Poly[2,6-diimidazo(4,5-b:4',5'-e)pyridinylene-1,4(2,5-dihydroxy)phenylen],PIPD}纤维(简称M5)是荷兰Akzo Nobel Central Research 经过 10 多 a 努力研制成功的一种新型刚性聚苯撑吡啶并咪唑(Polypyridobisimidazole)系聚合物纤维,其力学性能突出,耐热性及耐燃性好,由于大分子之间具有独特的氢键网状结构,纤维的抗压缩性能优于其它有机高性能纤维,目前该纤维由荷兰 Magellan SystemsInternational,LLC开发生产。本文对 PIPD 纤维的制备、纤维结构与性能以及应用等进行介绍和讨论。展开更多
基金supported by National Natural Science Foundation of China (50673017)Program for Outstanding Academic Leaders of Shanghai and Program of Introducing Talents of Discipline to Universities (111-2-04)
文摘Poly[2, 6-diimidazo (4,5-b:4’,5’-e) pyridinylene-1,4(2,5-dihydroxy) phenylen] (PIPD) was synthesized and the obtained PIPD/ PPA dope was directly spun into fibers via a dry-jet wet-spinning process for the first time. The obtained polymers were mainly characterized by ATR-FTIR and dynamic contact angle analysis. FTIR spectrum of the PIPD fibers indicates that the product was consistent with the target product. The contact angle measurements show that the wetting process of water on PIPD fibers is apparently faster than that on PBO fibers. The axial compression bending test indicates that PIPD fibers showed larger compressive strength compared with that of PBO fibers under the same axial compressive load. Meanwhile, the TGA test results indicate that the PIPD fibers have excellent thermal stability.
文摘聚 (2,5-二羟基-1,4-苯撑吡啶并二咪唑){Poly[2,6-diimidazo(4,5-b:4',5'-e)pyridinylene-1,4(2,5-dihydroxy)phenylen],PIPD}纤维(简称M5)是荷兰Akzo Nobel Central Research 经过 10 多 a 努力研制成功的一种新型刚性聚苯撑吡啶并咪唑(Polypyridobisimidazole)系聚合物纤维,其力学性能突出,耐热性及耐燃性好,由于大分子之间具有独特的氢键网状结构,纤维的抗压缩性能优于其它有机高性能纤维,目前该纤维由荷兰 Magellan SystemsInternational,LLC开发生产。本文对 PIPD 纤维的制备、纤维结构与性能以及应用等进行介绍和讨论。
