超高相对分子质量聚丙烯腈的结晶结构和热性能研究[EB/OL]
北京：中国科技论文在线
沈新元 *
沈新元
聚丙烯腈
王庆瑞 （ 东华大学
关键词： 超高相对分子质量
） Abstract： The crystalline structure and thermal properties of ultrahigh molecular weight polyacrylonitrile (UHMW-PAN) prepared by aqueous suspension polymerization were determined by using X-ray diffractometer, DSC and TGA
It was conformed that the degree of crystallinity increases and crystalline size decrease with the molecular weight increasing, the thermal stability is higher than that of the common molecular weight polyacrylonitrile(C-PAN), the Tg is about the same with that of C-PAN
The preparation process of the porous hollow fiber and the performance of the fiber are discussed to provide a theoretical basis for the preparation of ideal precursors of the porous hollow gel fiber
Keywords： ultrahigh molecular weight, polyacrylonitrile, crystal structure 下载PDF阅读器 PDF全文下载： 初稿 （ 927 ） 作者简介： 通信联系人： 【收录情况】 中国科技论文在线： 马季玫
） 摘要： 分别用X-射线衍射、TGA和动态力学方法等测定了通过水相悬浮聚合所制备的UHMW-PAN试样的结晶结构和热性能,并结合多孔中空纤维的制备工艺及纤维的性能进行了讨论,从而为制备多孔中空凝胶纤维用的理想原丝提供了理论依据
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