摘要
应用构象 构型统计理论和旋转异构态模型 ,考虑大侧基对高分子链构型的影响 ,建立高分子溶液特性粘数与链无规程度的关系 ,并应用于大分子量的聚苯乙烯溶液的特性粘数的计算 ,得到特性粘数与全同、间同和无规链分子量的关系 ,并与实验结果进行比较 。
Using the configurational-conformational statistics and the rotational isomeric state theory,the formula of the configurational-conformational parameter (characteristic ratio) < S-2 > /M is derived. The intrinsic viscosity depended on the molecular weight of polystyrene chains is estimated by the formula, and the intrinsic viscosity of isotactic,syndiotactic and atactic polystyrene chains with high molecular weight is compared by the percentages of meso dyads,or the tacticity of chain. The results are in agreement with the experimental data.
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
2001年第6期769-772,共4页
Acta Polymerica Sinica
关键词
聚苯乙烯
旋转异构态模型
构型参数
特性粘数
规整度
结构
polystyrene
rotational isomeric state
configurational-conformational parameter
intrinsic viscosity
