MEAN-SQUARE RADIUS OF GYRATION AND DIPOLE MOMENT OF POLY(METHYLPHENYLSILOXANE) CHAINS  

作　　者：马海珠 

机构地区：[1]College of Information and Electronic Engineering,Zhejiang Gongshang University [2]Department of Physics,Zhejiang University

出　　处：《Chinese Journal of Polymer Science》2008年第6期741-749,共9页高分子科学（英文版）

基　　金：supported by the National Basic Research Program (973) of China (No.10574109);the Zhejiang Provincial Science and Technology Department (No.2007G60G1120019);National Science Foundation of Zhejiang Province (No.Y604064);Zhejiang Gongshang University (No.08-13),China.

摘　　要：The mean-square radius of gyration <S^2>,the mean-square dipole moment <D^2>,the mean-square end-to-end distance <R^2> and their temperature coefficients of unsymmetrical disubstituted poly(methylphenylsiloxane) (PMPS) chains, as a function of stereochemical structure,confomational energies and length of polymers,were studied by using an improved configurational-confomational statistical method based on the rotational-isomeric-state theory.It is found that the increase in isotacticity of P...The mean-square radius of gyration <S^2>,the mean-square dipole moment <D^2>,the mean-square end-to-end distance <R^2> and their temperature coefficients of unsymmetrical disubstituted poly(methylphenylsiloxane) (PMPS) chains, as a function of stereochemical structure,confomational energies and length of polymers,were studied by using an improved configurational-confomational statistical method based on the rotational-isomeric-state theory.It is found that the increase in isotacticity of P...

关 键 词：Poly（methylphenylsiloxane） Stereochemical structure Mean-square radius of gyration Mean-square dipole moment Temperature coefficient. 

分 类 号：O634.41[理学—高分子化学]