主客体化学计量比对聚轮烷凝胶可拉伸性有显著影响。
A significant impact of host-guest stoichiometry on the extensibility of polyrotaxane gels.
作者信息
Kato Kazuaki, Okabe Yoshinori, Okazumi Yuya, Ito Kohzo
机构信息
Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan.
出版信息
Chem Commun (Camb). 2015 Nov 21;51(90):16180-3. doi: 10.1039/c5cc07122d.
PMID:26399995
Abstract
Modification of the guest polymer ends efficiently and substantially decreases the density of the threaded rings. The minimized ring density drastically facilitates chain sliding through the cross-links in polyrotaxane gels. This molecular design is like regulating the "pressure" of the rings confined in the interlocked architecture, which counteracts the sliding.
摘要
对客体聚合物末端进行修饰可有效且大幅降低穿线环的密度。最小化的环密度极大地促进了链在聚轮烷凝胶的交联点间滑动。这种分子设计就如同调节限制在互锁结构中的环的“压力”，而这种压力会阻碍滑动。
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