PHASE SEPARATION IN BIMODAL MOLECULAR WEIGHT HIGH DENSITY POLYETHYLENE WITH DIFFERING BRANCH CONTENTS BY MOLECULAR DYNAMICS AND MESODYN SIMULATION  

作　　者：吕中元 

机构地区：[1]Institute of Theoretical Chemistry,State Key Laboratory of Theoretical and Computational Chemistry,Jilin University

出　　处：《Chinese Journal of Polymer Science》2009年第4期493-500,共8页高分子科学（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.20490220,20774036).

摘　　要：The phase behavior of bimodal molecular weight high density polyethylene(BHDPE) in solid state was investigated.Hildebrand solubility parameters(δ) were calculated for the models of blends of higher molecular weight branch polyethylene(HBPE) with different branch contents and lower molecular weight linear polyethylene(LLPE),by using molecular dynamics(MD) simulations.These 3 values were then used to calculate the corresponding Flory-Huggins interaction parameter(x) between HBPE and LLPE models.In order to b...The phase behavior of bimodal molecular weight high density polyethylene(BHDPE) in solid state was investigated.Hildebrand solubility parameters(δ) were calculated for the models of blends of higher molecular weight branch polyethylene(HBPE) with different branch contents and lower molecular weight linear polyethylene(LLPE),by using molecular dynamics(MD) simulations.These 3 values were then used to calculate the corresponding Flory-Huggins interaction parameter(x) between HBPE and LLPE models.In order to b...

关 键 词：POLYETHYLENE Phase behavior Molecular dynamics Mesodyn simulation 

分 类 号：O631.3[理学—高分子化学]