摘要
本文利用^(13)C-NMR,对“准”稳态下以n-BuLi-THF引发的丁苯共聚物的序列结构进行了研究。获得了THF与n-BuLi在不同比例下产物的数均嵌段长度、混合单体嵌段长度和交替结构的变化情况。
By using the ^(13)C-NMR data, the sequential distribution of styrene-butadiene copolymer initiated by n-BuLi-THF under 'quasi-stationary' condition has been investigated. Some important informations, such as average block lengths for monomer units and mixed monomer blocks, the variation of alternating microstructure etc., have been evaluated.
基金
中国自然科学基金会资助的课题
关键词
共聚物
丁二烯
苯乙烯
核磁共振
copolymers
butadiene
styrene
sequence
nuclear magnatic resonance
sequence distribution
