MEASUREMENTS OF CHAIN INTERPENETRATION OF POLYMER GLASSES  

作　　者：薛奇 

机构地区：[1]Department of Polymer Science & Engineering,Institute of Chemistry and Chemical Engineering,Nanjing University

出　　处：《Chinese Journal of Polymer Science》2007年第1期107-111,共5页高分子科学（英文版）

摘　　要：The concept of entanglement provides the basis of our current understanding of the flow behavior of polymer melts, Current techniques developed to investigate the degree of interpenetration of polymer chains only provide indirectly the information of the degree of entanglement in a relatively large scale （several to tens of nanometer）. In this article, we report ^1H-NMR spectroscopy with dipolar filters under fast magic angle spinning for probing chain interpenetration of polymer glasses at the molecular level.The concept of entanglement provides the basis of our current understanding of the flow behavior of polymer melts, Current techniques developed to investigate the degree of interpenetration of polymer chains only provide indirectly the information of the degree of entanglement in a relatively large scale （several to tens of nanometer）. In this article, we report ^1H-NMR spectroscopy with dipolar filters under fast magic angle spinning for probing chain interpenetration of polymer glasses at the molecular level.

关 键 词：INTERPENETRATION Dipole filter Fast magic angle spinning Molecular level. 

分 类 号：O631.3[理学—高分子化学]