应用物理学论文编号:WLX063  字数:6965,页数:18

 
目   录
摘     要 i
Abstract ii
目   录 iii
第一章  绪论 1
1.1 高分子研究及意义 1
1.1.1高分子的发展 1
1.1.2高分子的理论研究 1
1.1.3高分子的实验研究 2
1.2 国内外的研究现状 2
1.3本论文的主要内容 3
第二章  模型和方法 4
2.1 吸附环型高分子链的计算模型 4
2.2 结构参数计算 5
2.2.1 均方回转半径 5
2.2.2 形状因子 5
2.2.3 吸附分数 6
第三章  结果分析 7
3.1 均方回转半径 7
3.2 形状因子 9
3.3 吸附分数 10
3.4 自由能 11
3.5弹力 12
第四章 结论 13
致  谢 14
参考文献 15

摘     要

 本文主要介绍了高分子科学发展的意义、历程以及目前国内外研究的发展状况，用简立方格子模型和完全计算法，通过fortran编程统计表面吸附的环型高分子链的结构和力学性质，对表面吸附的环形高分子链进行统计分析。在吸附物理模型下, 采用模拟方法，获得环型高分子单链的弹性行为的一些参数，如均方回转半径、形状因子、平均每个键的能量、平均自由能和吸附分数等，画出这些参数在拉伸过程中的曲线，并进行了分析，得出吸附环型高分子单链在拉伸过程中的结构与性质变化，如对环型高分子链的解吸附行为的分析，从而初步了解高分子的结构与性能、行为的密切联系，对更深入研究高分子打下了基础。
 
关键词：表面吸附  环型高分子链  完全计算法  弹性行为

Abstract

 This article gives an overview of the significance of polymer science, course and the development of current researches at home and abroad. This work studies the structure and mechanical properties of adsorbed ring polymer chain using fortran calculating, based on the simple cubic lattice model and enumeration calculation method. The adsorbed ring polymer chains have special performance and behavior because of its special structure. During the process, the structures and properties are materialized by some parameters, such as mean-square radii of gyration, shape factor, average energy, free energy and adsorption fraction, etc. The changes in structure and property of the adsorbed polymer chain, such as desorption behavior, during the stretching process are gained by analysing the curves of those parameters. In that case, we can simply understand the relationship between the structure and the function of ring polymer. It sets up a basic for further study.

Keywords:  absorption of surface; ring polymer chains; enumeration calculation method; elastic behavior