用^(13)CNMR研究星形聚苯乙烯溶液的分子运动(Ⅰ)  

Molecular Motion of Star-Shaped Polystyrenes in Solution Studied by Carbon-13 NMR(Ⅰ)

作　　者：汪健[1] 华士英[1] 李瑛[1] 裘祖文 沈家骢[1] Wang Han;Hua Shiying;Li Ying;Qiu Zuwen;Shen Jiacong(Chemiatry Department,Institute of Theoretical Chemistry,Jilin University,Changchun)

机构地区：[1]吉林大学化学系、理论化学研究所

出　　处：《高等学校化学学报》1987年第12期1127-1130,共4页Chemical Journal of Chinese Universities

基　　金：中国科学院科学基金资助课题。

摘　　要：用Varian FT-80ANMR谱仪,对结构规则的星形聚苯乙烯在d_(4)-邻二氯苯和CDCl_(3)溶液中的^(13)C NMR自旋-晶格弛豫时间、线宽和NOE进行了测定。研究了分子量、浓度、溶剂和分子结构对弛豫的影响,并用相关时间的log-χ^(2)分布函数模型解释了实验数据。The carbon-13 NMR spin lattice relaxation times,line widths and Nuclear Over-hauscr Enhancements were measured for solutions of regular star-shaped polystyrenes in o-dichlorobenzene and in CDCl_(3).The factors,molecular weight,concentration,solvent and molecular structure,which control magnetic relaxation,were examined.The experimental data were interpreted in terms of the log-χ^(2) distribution of correlation times.

关 键 词：星形聚苯乙烯 邻二氯苯 分子运动 结构规则 函数模型 分子结构 实验数据 

分 类 号：TQ3[化学工程]