CHARACTERIZING THE INTERDIFFUSION OF POLYMERS AT MOLECULAR LEVEL

摘要：

Blending of polymers is an important method for developing new materials in polymer industry. The physical and chemical properties of the polymer blends depend on the nature of the constituent polymers and, more importantly, on the blending process and the degree of mixing of the different polymers. Investigation of the diffusion behavior at polymer interfaces is practically important, because the diffusion behavior controls the kinetics of polymer blending and welding processes, and thus influences the performance of the final products. In this work, the interdiffusion of deuterated polystyrene (PS-D) and hydrogenated poly(2,6dimethyl-l,4-phenylene oxide) (PPO) is characterized by H dipolar filter solid-state NMR under fast magic angle spinning (MAS).2 It is observed that the PSD/PPO interdifrusion is composed of two stages, the wetting stage and the diffusion stage (Figure 1).

作者: Qiang Gu Xiaoliang Wang Pingchuan Sun Gi Xue

作者单位: Department of Polymer Science and Engineering, The School of Chemistry and Chemical Engineering, Nan Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Nankai

会议类型: 国际会议

会议名称: PP’2010，Jinan International Symposium on Polymer Physics(2010济南国际高分子物理学术研讨会)

会议地点: 济南

会议语种:英文

页码: 247-248

在线出版日期: 2010-06-06（万方平台首次上网日期，不代表论文的发表时间）