摘要
应用小角X射线散射技术研究了聚丙烯的长周期 ,结果表明 ,聚丙烯的相关函数长周期与它的Bragg长周期不相等 ;应用小角散射理论和结晶聚合物的三相结构模型研究了聚丙烯的 2种长周期不同的原因 ,得到结论 ,聚丙烯的Bragg长周期接近于它的相关函数长周期与结晶过渡层的厚度之和 .这个结论与小角散射实验的结果一致 .
In the paper, small angle X-ray scattering technique was used to study lo ng periods of polypropylene. The results indicate that the correlation fun ction long period of polypropylene and its Bragg long period are not identical. We applied the theory of small-angle scattering and three-phase model of cryst al line polymer to study the reason of differences of two kinds of long periods of polypropylene and draw a conclusion that the Bragg long period approaches the correlation function long period plus the thickness of the transition lay er.The conclusion is consistent with our small-angle scattering experime ntal results.
出处
《中国科学院研究生院学报》
CAS
CSCD
2005年第2期135-139,共5页
Journal of the Graduate School of the Chinese Academy of Sciences
关键词
小角X射线散射
聚丙烯
三相结构
相关函数
small-angle X-ray scattering, polypropylene, three-phase structure, correlati on function
