Preparation and structures of supramolecules between cyclodextrins and polymers
Preparation and structures of supramolecules between cyclodextrins and polymers
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DOI：
10.1016/0010-8545(95)01157-9
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发表时间：
1996-02-01
影响因子：
20.6
通讯作者：
Harada, A
中科院分区：
文献类型：
--
作者：
Harada, A
环糊精（CD）与各种聚合物形成包合物，具有高选择性，得到结晶化合物。α-CD与聚乙二醇（PEG）和低聚乙烯以高产率形成复合物，尽管β-CD不与PEG形成复合物。β-CD与聚丙二醇（PPG）形成复合物，α-CD与聚异丁烯（PIE）和聚甲基乙烯基醚（PMVE）不形成复合物，γ-CD与PIE和PMVE形成复合物。讨论了配合物的化学计量、性质和结构。配合物的产率随着分子量的增加而增加。聚轮烷，其中许多环糊精是线程上的聚（乙二醇）链，通过封闭的大体积基团的复合物中的聚合物的链端制备。
Cyclodextrins (CDs) form inclusion complexes with various polymers with high selectivities to give crystalline compounds. alpha-CD formed complexes with poly(ethylene glycol) (PEG) and oligoethylene in high yields, although beta-CD did not form complexes with PEG. However, beta-CD formed complexes with poly(propylene glycol) (PPG), Although alpha-CD did not form complexes with polyisobutylene (PIE) and poly(methyl vinyl ether) (PMVE), gamma-CD formed complexes with PIE and PMVE, There is a good correlation between the sectional areas of the polymers and the sizes of the CDs. The stoichiometries, properties, and structures of the complexes are discussed. The yield of the complexes increased with increasing molecular weight. Polyrotaxanes, in which many cyclodextrins are threaded on a poly(ethylene glycol) chain, were prepared by capping the chain ends of the polymers in the complexes with bulky groups.