期刊
MACROMOLECULES
卷 45, 期 4, 页码 1924-1930出版社
AMER CHEMICAL SOC
DOI: 10.1021/ma202506b
关键词
-
资金
- NSERC of Canada
- FQRNT of Quebec
- Canada Research Chair program
- FQRNT
- FRSQ
Multishape memory copolymers were prepared through copolymerization of two norbornene derivatives: one based on cholic acid and the other on triethylene glycol monomethyl ether. The glass transition temperature (T-g) of the copolymers can be tuned over a temperature range from -58 to 176 degrees C. Most of these copolymers displayed a very broad T-g over a 20 degrees C range which can allow a multishape memory effect. The shape memory properties of the copolymer incorporating an equal molar amount of both monomers have been studied in detail. The multishape memory effect was investigated by dynamic mechanical analysis using a thermomechanical programming process, in which multiple steps created two, three, and four temporary shapes. The polymer displayed good shape fixing and recovery in different thermal processing stages over the broad glass transition range. This series of copolymers with broad and tunable T-g's may be useful as functional materials with multishape memory effect.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据