標題: Supramolecular self-assembly through inclusion complex formation between poly(ethylene oxide-b-N-isopropylacrylamide) block copolymer and alpha-cyclodextrin
作者: Tu, Cheng-Wei
Kuo, Shiao-Wei
Chang, Feng-Chih
應用化學系
Department of Applied Chemistry
關鍵字: Cyclodextrin;Inclusion complexes;Block copolymer
公開日期: 19-六月-2009
摘要: A well-defined poly(ethylene oxide-block-N-isopropylacrylamide) (PEO-b-PNIPAM) diblock copolymer was synthesized by atom transfer radical polymerization and formed the inclusion complexes (ICs) after selective threading of the PEO segment of the block copolymer through the cavities of alpha-cyclodextrin (alpha-CD) units. The formation of the alpha-CD/PEO ICs between alpha-CD and PEO segment of the PEO-b-PNIPAM transformed the system from its original random coil conformation into a rod/coil-like structure. The stacking of the alpha-CD/PEO ICs and phase separation within the alpha-CD/PEO-b-PNIPAM IC resulted in the self-assembly of long-range-ordered lamellar structure exhibiting alternating layers of (i) alpha-CD/PEO ICs with hexagonally packed plates and (ii) amorphous phase of unincluded PEO/PNIPAM with brush conformation. (C) 2009 Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/j.polymer.2009.04.034
http://hdl.handle.net/11536/7098
ISSN: 0032-3861
DOI: 10.1016/j.polymer.2009.04.034
期刊: POLYMER
Volume: 50
Issue: 13
起始頁: 2958
結束頁: 2966
顯示於類別:期刊論文


文件中的檔案:

  1. 000267415600028.pdf