聚二甲基亚硅烷链均方回转半径及温度系数

A Study of Mean-Square Radius of Gyration and Temperature Coeffieient of Poly(dimethylsilylene)Chains

利用在旋转异构态模型基础上的构象统计方法,研究侧基高分子聚二甲基亚硅烷的无扰尺寸.得到其长链分子的均方回转半径的特征比和温度系数分别趋向于稳定值2.04和-1.66×10-3deg-1.

Unperturbed dimensions of Poly （dimethylsilylene） chain are investigated with the conformation statistical method based on the rotational-isomeric-state theory. The obtained characteristic ratio of mean-square radius of gyration and its temperature coefficients for the long Poly（dimethylsilylene）chains with side groups approach the asymptotic value of 2.04 and - 1.66× 10 - 3deg- 1 respectively.