聚丙烯/橡胶共混体系——聚丙烯顺丁橡胶共混体系的研究(Ⅲ)

THE BLENDS OF ISOTCTIC POLYPROPYLENE WITH RUBBER——THE STUDIES OF BLENDS OF ISOTACTIC POLYPROPYLENE WITH POLY-cis 1,4-BUTADIENE RUBBER(Ⅲ)

本文讨论了等规聚丙烯(IPP)和聚高顺式1,4—丁二烯橡胶(PcBR)共混物中PcBR对IPP结晶速度和结晶生长的影响。用x光衍射法研究了共混物中IPP的结晶结构。红外光谱结果说明共混物两相是不相溶的。由DSC测得共混物中IPP的结晶熔化热Hc,Hc与PcBR含量无关。

This paper discusses the influence poly-cis 1, 4-butadiene (PcBR) in the blends of isotactic polypropylene (IPP) with the PcBR on the crystalline velocity and growth of the IPP. The crystalline structure of the IPP in the blend is studied by X-ray diffraction method. The results of infrared spectroscopy (IR)show that two phases of the blends are incompatible. The crystalline melting heat H_c of the IPP in the blends is obtained by DSC, and H_c has no relation to the content of the PcBR.