Carboxy-Telechelic Polyolefins in Cross-Linked Elastomers
Carboxy-Telechelic Polyolefins in Cross-Linked Elastomers
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DOI：
10.1021/ma402397b
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发表时间：
2014-01-28
期刊：
影响因子：
5.5
通讯作者：
Hillmyer, Marc A.
中科院分区：
文献类型：
--
作者：
Martinez, Henry;Hillmyer, Marc A.
我们证明了3-己基顺式环烯烯和顺式环烯烯在马来酸作为链转移剂存在下的开环复分解共聚可以精确控制所得到的羧基远端聚烷基的摩尔质量、分支和结晶度。随后使用二氧化硅支撑的铂催化剂加氢对羧基官能团的影响可以忽略不计，并导致远螺旋聚烯烃具有高热阻，低玻璃化转变温度(
We demonstrate that ring-opening metathesis copolymerization of 3-hexyl-cis-cyclooctene and cis-cyclooctene in the presence of maleic acid as a chain transfer agent leads to precise control over the molar mass, branching and crystallinity of the resulting carboxy-telechelic polyalkenamers. Subsequent hydrogenation using a silica-supported platinum catalyst had a negligible effect on the carboxy functionality and led to telechelic polyolefins with high thermal resistance, low glass transition temperatures (