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Study on Solution-SBR Chain Chemical Structure with High-resolution 1H-NMR
Wang Song1, Luo Xiaolie1, Ma Dezhu1, Huang Yiping2
1.Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026;2.Chemical Engineering College, Anhui University, Hefei 230026
Abstract:
With a high-resolution 1H-NMR the features of solution-SBRs chain structures have been analyzed and made quantitative calculations of the chemical composites, inparticular, the contents of butadiene isomers have been made. It is reveal that the Bayer solution-SBR, whose performance is highly recognized inthe tire industry, has a high content of cis-1,4 butadiene isomers, allow content of trans-1,4 butadiene isomers, and a medium contents of 1,2add butadiene isomers and styrene units, as well as that the butadiene isomers display orderly characteristics in the sequence. The above structural features determine that Bayer solution-SBR can play good role in the balance of the low heat building up, antiwetskip and antiwear properties of green tire.
Key words:  Solution-SBR, Chain structure, 1H-NMR
FundProject:
高分辨1H-NMR研究溶聚丁苯橡胶链化学结构
王嵩1, 罗筱烈1, 马德柱*1, 黄毅萍2
1.中国科学技术大学高分子系,合肥,230026;2.安徽大学化学化工学院,合肥,230039
摘要:
用高分辨 1H-NMR研究了不同溶聚丁苯橡胶链化学结构的特征,并对其中的化学组成特别是丁二烯异构体含量进行了定量计算.揭示了轮胎工业中公认性能优良的拜尔溶聚丁苯橡胶具有较高的cis-1,4丁二烯异构体含量,而trans-1,4丁二烯异构体含量较低, 1,2add丁二烯异构体含量和苯乙烯含量比较适中,而且丁二烯异构体具有一定的序列有序性.正是这些结构因素,决定了拜尔溶聚丁苯橡胶能够对绿色轮胎低生热、抗湿滑和耐磨性能起到了最佳平衡作用.
关键词:  溶聚丁苯  链化学结构  核磁共振
DOI:10.1088/1674-0068/17/5/652-656
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