A Versatile Synthesis of Diverse Polyrotaxanes with a Dual Role of Cyclodextrin as both the Cyclic and Capping Components
A Versatile Synthesis of Diverse Polyrotaxanes with a Dual Role of Cyclodextrin as both the Cyclic and Capping Components
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DOI：
10.1021/ma101811n
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发表时间：
2010-10
期刊：
影响因子：
5.5
通讯作者：
Kazuaki Kato;H. Komatsu;K. Ito
中科院分区：
文献类型：
--
作者：
Kazuaki Kato;H. Komatsu;K. Ito
本文报道了环糊精基聚轮烷（cd - pr）的多用途合成。以不同的线性聚合物和不同的CDs为原料，用一种新颖的单一方法合成了三种不同的cd - pr，产率均较高。这种方法不需要额外的旋盖试剂，因为CDs既是环组分又是末端旋盖基团。末端封盖是通过对硝基苯基酯激活的伪聚轮烷两端多余的CDs进行酯交换而实现的。由于这种多用途的方法，我们也首次合成了一种基于聚丁二烯的新型CD-PR。
We report herein a versatile synthesis of cyclodextrin-based polyrotaxanes (CD-PRs). Three different CD-PRs were synthesized from different linear polymers and different CDs with relatively good yields by a novel single method. This method requires no additional capping reagents, because CDs play a dual role as both the cyclic components and the end-capping groups. The end-capping is achieved by transesterification with excess CDs at both ends of pseudopolyrotaxanes activated with p-nitrophenyl ester. As a result of this versatile method, we also demonstrate the first synthesis of a novel CD-PR based on poly(butadiene).