PS与PMA链构象能对无扰尺寸的影响  

Effect of Conformational Energies on Unperturbed Dimensions of PS and PMA Chain

作　　者：马海珠[1] 

机构地区：[1]浙江教育学院理工学院 浙江杭州310012

出　　处：《浙江教育学院学报》2006年第4期55-60,共6页Journal of ZHEJIANG Education Institute

摘　　要：利用构象-构型统计方法,推导了均方回转半径和温度系数公式,并对同为单侧基二态模型的聚苯乙烯和聚丙烯酸甲酯链均方回转半径特征比作了计算比较,发现构象能对链无扰尺寸和温度系数的依赖关系是不同的,说明侧基对聚合物性质有重要影响.Using the method of configurational-conformational statistics, the formula of mean-square radius of gyration and temperature coefficient are derived. The characteristic ratios of mean-square radius of gyration of polystyrene （PS） and poly （ methyl acrylate） （PMA） chain similarly with one substituent are calculated and compared. It is found that the dependence of the chain dimensions and temperature coefficients on conformational energies between PS and PMA chain is different. Therefore, the effect of side group on polymers property is important.

关 键 词：聚苯乙烯 聚丙烯酸甲酯链 旋转异构态模型 无扰尺寸 

分 类 号：O469[理学—凝聚态物理] O631.2[理学—电子物理学]