Determination of the stereochemistry of poly(1,3-cyclohexadiene) via end group functionalization

被引:15
|
作者
Williamson, DT [1 ]
Glass, TE [1 ]
Long, TE [1 ]
机构
[1] Virginia Polytech Inst & State Univ, Dept Chem, Blacksburg, VA 24061 USA
关键词
D O I
10.1021/ma0103167
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The stereochemistry of poly(1,3-cyclohexadiene) was examined through end group functionalization with chlorotrimethylsilane. The polymer backbone of poly(1,3-cyclohexadiene) contained 70% 1,2 addition and 30% 1,4-addition. The regiochemistry of 6000 trimethylsilyl (TMS) end-capped chain ends was examined through both 1H and 29Si nuclear magnetic resonance (NMR). The ratio ofthe cis vs trans stereomolecules of poly(1,3-cyclohexadiene) were determined upon 1H NMR examination of the TMS end groups, and found to be 6% trans and 18% cis of the total 24% 1,4-addition.
引用
收藏
页码:6144 / 6146
页数:3
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