文献类型：期刊文献

英文题名：Effect of heat treatment on the structure and properties of poly(2,6-benzothiazole) (ABPBT) and poly(2,5-benzoxazole) (ABPBO)

作者：Wang, Shanfeng[1]; Bao, Gaobin[1]; Lu, Zhibao[1]; Wu, Pingping[1]; Han, Zhewen[1]

机构：[1]E China Univ Sci & Technol, Dept Polymer Sci & Engn, Shanghai 200237, Peoples R China

年份：2000

卷号：35

期号：23

起止页码：5873

外文期刊名：JOURNAL OF MATERIALS SCIENCE

收录：;EI(收录号：2001095477891);WOS:【SCI-EXPANDED(收录号:WOS:000166294100012)】；

语种：英文

外文关键词：Crystal microstructure - Fibers - Fourier transform infrared spectroscopy - Heat treatment - Mechanical properties - Polycondensation - Scanning electron microscopy - Spinning (fibers) - Synthesis (chemical) - Tensile testing - X ray diffraction analysis

摘要：Poly(2,6-benzothiazole) (ABPBT), poly(2,5-benzoxazole) (ABPBO) were synthesized and their fibers were prepared by dry-jet wet-spinning technique. The effect of heat treatment on the structure and properties of the fibers/films were studied in detail by the measurements using Fourier transform infrared (FTIR), scanning electron microscope (SEM), wide-angle X-ray diffraction (WAXD) and Instron tensile tester. The results not only showed that heat treatment had a significant effect on the macrostructure and microstructure of fibers, making fibers more regular and improving their mechanical properties, but also indicated that there was a suitable range of heat treatment conditions. (C) 2000 Kluwer Academic Publishers.