高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (2): 249.

• 研究论文 • 上一篇    下一篇

CHMI/MMA共聚物结构与性能的量子化学研究

张桂玲1,2, 戴柏青1,2, 韦永德1, 董绍胜1   

  1. 1. 哈尔滨工业大学材料物理与化学系, 哈尔滨 150001;
    2. 哈尔滨师范大学化学系, 哈尔滨 150080
  • 出版日期:2001-02-24 发布日期:2001-02-24
  • 通讯作者: 戴柏青(1938年出生),男,教授,博士生导师,从事应用量子化学研究.
  • 基金资助:

    黑龙江省自然科学基金(批准号:99B003)资助

A Quantum-Chemical Study on Structures and Properties of CHMI/MMA Copolymer

ZHAN Gui-Ling1,2, DAI Bai-Qing1,2, WEI Yong-De1, DONG Shao-Sheng1   

  1. 1. Department of Material Physics and Chemistry, Harbin Institute of Technology, Harbin 150001, China;
    2. Department of Chemistry, Harbin Normal University, Harbin 150080, China
  • Online:2001-02-24 Published:2001-02-24

摘要: 用从头算方法,在3-21G基组水平上对CHMI和MMA单体进行几何全优化,在优化构型下,用STO-3G基组对CHMI/MMA共聚物和PMMA分子链的结构单元作单点计算.从内旋转势垒、键能、电子云布居和自由体积的角度定量分析了CHMI/MMA共聚物的结构特点.结果表明,CHMI/MMA共聚物的参数值均比PMMA更高,从理论上确认了该共聚物具有优异性能的根本原因,得到与实验一致的结论.

关键词: 共聚物, PMMA, 量子化学从头算

Abstract: Ab initio calculations are carried out for the CHMI/MMAcopolymer unit. The calculated results of internal rotation energy barriers, bond energies, Mulliken populations and free volumes suggested that these parameters of CHMI/MMAcopolymer had higher values than that of PMMA, and the conclusions are in consistence with experimental results.

Key words: Copolymer, PMMA, Ab initio quantum-chemical calculation

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