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浙江大学学报(理学版)
物理学     
受约聚亚甲基链的热力学性质
浙江大学西溪校区物理系,浙江 杭州 310028
Thermodynamical Properties of Polymethylene Chains Confined in an Infinite Cylinder.
Department of Physics,Zhejiang University,Hangzhou 310028,China
 全文: PDF(71 KB)  
摘要: 采用旋转异构态模型,计算受约于无限长圆柱体的聚亚甲基链的配分函数.发现受约聚亚甲基链的配分函数可以写成ln Z=a N+b,其中,N是键的数目,a和b与温度T、无限长圆柱体的直径D有关.同时计算了构象能量Econf和熵Sconf这种方法为研究多链体系的热力学提供一种近似方法.
关键词: 旋转异构态模型聚亚甲基链热力学函数     
Abstract: The partition function Z of short polymethylene chain confined in an infinite cylinder is calculated by employing the rotational-isomeric state model and given byln Z=a N+b.Here,N is the chain length of a chain,parameters a and b depend on temperature T and the diameter D of an infinite cylinder.The conformational energy Econf and entropy Sconf are derived from the partition function using the canonical ensemble approach.The results of the short polymer chains confined in a cylinder can provide some thermodynamical properties of dense polymer chains.
Key words: rotational-isomeric state model    polymethylene chain    thermodynamical properties
收稿日期: 1999-02-08 出版日期: 2017-11-10
CLC:  O631.2   
基金资助: 国家自然科学基金项目(29874012)和国家攀登计划“高分子凝聚基本物理问题研究”资助项目
作者简介: 王向红(1965-),女,温州师范学院物理系讲师,硕士,从事理论物理研究.
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引用本文:

王向红,章林溪,夏阿根,徐芸,许健民. 受约聚亚甲基链的热力学性质[J]. 浙江大学学报(理学版), .

WANG Xiang-hong,ZHANG Lin-xi,XIA A-gen,et al . Thermodynamical Properties of Polymethylene Chains Confined in an Infinite Cylinder.. Journal of Zhejiang University (Science Edition), .

链接本文:

https://www.zjujournals.com/sci/CN/        https://www.zjujournals.com/sci/CN/Y1999/V26/I2/46

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