高等学校化学学报 ›› 1985, Vol. 6 ›› Issue (6): 552.

• 研究论文 • 上一篇    下一篇

环型高分子链在良溶剂中的线团行为Ⅰ——r~r线和f~f线的理论推导及实验验证

黄家贤, 李春荣, 王林富, 何炳林   

  1. 南开大学化学系
  • 收稿日期:1983-09-12 出版日期:1985-06-24 发布日期:1985-06-24
  • 基金资助:

    中国学科院科学基金

Coil Properties of Ring Shaped Polymer Chains in Good Solvent --Theoretical Calculation and Experimental Determination of rdgu·ring-rctu·open and fring-fopen

Huang Jiaxian, Li Chunrong, Wang Linfu, He Binglin   

  1. Department of Chemistry, , Nankaii University, Tianjin
  • Received:1983-09-12 Online:1985-06-24 Published:1985-06-24

摘要: 本文用简单的数学关系导出了稀溶液中由同一种单体组成,分子量相同的环型和线型高分子线团的等效球体半径比r/r线和摩擦因子比f/f线均为1/([η]线/[η])1/3.在不考虑排斥体积效应的情况下,这个比值为2-1/3即0.7937.均方半径比为0.79372≈0.63.

Abstract: Two correlation equation repu·ring/repu·opcn = 1/([η])opcn/[η]ring)3 and fring/fopcn=1/([η])opce/[V]ring)1/3 of the ring shaped and linear shaped polymercoils with both same monomer and molecular weight in dilute solution have been derived. When there isn't excluded volume effect, requ. ring/requ.opcn=fring/fopcn=2-1/3≈ 0.7937 and 〈S2ring/〈S2open = (2-1/3)2≈0.63.

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