含两个识别点的侧链准聚轮烷的制备

doi:10.7517/j.issn.1674-0475.2014.06.495

影像科学与光化学 ›› 2014, Vol. 32 ›› Issue (6): 495-504.DOI: 10.7517/j.issn.1674-0475.2014.06.495

含两个识别点的侧链准聚轮烷的制备

岳军治¹, 李姝静^1,2, 周威¹, 王心蕊¹, 陈勇²

1. 北京工商大学理学院化学系, 北京 100048;
2. 中国科学院理化技术研究所光化学转换与功能材料重点实验室, 北京 100190

收稿日期:2014-02-17 修回日期:2014-06-11 出版日期:2014-11-15 发布日期:2014-11-15
通讯作者: 李姝静
基金资助:
国家自然科学基金项目(21301012)、北京市自然科学基金资助项目(2144047,2143040)、教育部留学回国人员科研启动基金资助项目和教师队伍建设-青年英才计划(YETP1444)资助

Preparation of Side-chain Polypseudorotaxane Bearing Two Recognition Sites

YUE Junzhi¹, LI Shujing^1,2, ZHOU Wei¹, WANG Xinrui¹, CHEN Yong²

1. Department of Chemistry, School of Science, Beijing Technology and Business University, Beijing 100048, P.R.China;
2. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, TIPC, CAS, Beijing 100190, P.R.China

Received:2014-02-17 Revised:2014-06-11 Online:2014-11-15 Published:2014-11-15

摘要/Abstract

摘要：

合成了侧链含烷基链(C₇)及偶氮基团(Azo)两个疏水基团修饰的聚合物4,并基于环糊精与两个疏水基团C₇、Azo的不同结合能力,制备了含两个识别点的侧链准聚轮烷.首先,在聚合物4的溶液中加入α-环糊精(α-CD),α-CD分别包结在C₇及Azo部分,得到了侧链准聚轮烷;第二步,在365 nm的紫外光光照下,聚合物4侧链端基的trans-Azo异构为cis-Azo,α-CD从Azo部分解离,但α-CD仍包结在C₇部分,得到了侧链聚轮烷;第三步,在侧链聚轮烷溶液中加入β-环糊精(β-CD),β-CD包结在cis-Azo部分,得到了α-CD、β-CD分别包结两个疏水识别点的侧链准聚轮烷.

关键词: 侧链准聚轮烷, 主客体相互作用, 环糊精, 超分子

Abstract:

A polymer (44) bearing heptamethylene (C₇) and azobenzene (Azo) was synthesized. Based on the different association constants between the cyclodextrins and the hydrophobic moieties C₇ and Azo, a side-chain polypseudorotaxane was prepared. In the first step, α-cyclodextrin (α-CD) was added to the polymer 4 solution to form the side-chain polypseudorotaxane, in which the C₇ and Azo was both included by the α-CD. In the second step, the trans-Azo at the end of the side chain of the polymer 4 was isomerized to the cis-Azo under the irradiation of the 365 nm UV light to form the side-chain polyrotaxane, in which α-CD was interlocked on the side chain. In the final step, β-cyclodextrin (β-CD) was added to the side-chain polyrotaxane to form the side-chain polypseudorotaxane.

Key words: side-chain polypseudorotaxane, host-guest interaction, cyclodextrin, supramolecular

岳军治, 李姝静, 周威, 王心蕊, 陈勇. 含两个识别点的侧链准聚轮烷的制备[J]. 影像科学与光化学, 2014, 32(6): 495-504.

YUE Junzhi, LI Shujing, ZHOU Wei, WANG Xinrui, CHEN Yong. Preparation of Side-chain Polypseudorotaxane Bearing Two Recognition Sites[J]. Imaging Science and Photochemistry, 2014, 32(6): 495-504.

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含两个识别点的侧链准聚轮烷的制备

Preparation of Side-chain Polypseudorotaxane Bearing Two Recognition Sites

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