標題: Synthesis of the organic/inorganic hybrid star polymers and their inclusion complexes with cyclodextrins
作者: Chan, SC
Kuo, SW
Chang, FC
應用化學系
Department of Applied Chemistry
公開日期: 19-四月-2005
摘要: In this study, we synthesized a series of the organic/inorganic hybrid star PCLs. These star PCLs can form inclusion complexes (ICs) with alpha- and gamma-CD, but not with beta-CD. These CD ICs were characterized by XRD, solid-state C-13 CP/MAS NMR spectroscopy, H-1 NMR spectroscopy, FT-IR spectroscopy, DSC, and TGA. Our results suggest that the PCL chains of these star polymers lose their original crystalline properties and were included inside the channels provided by the CDs to form a columnar crystalline structures. The stoichiometries (PCL:CD) that we determined by H-1 NMR spectroscopy for all of the ICs with alpha- or gamma-CD are higher than those of the corresponding CD/linear PCL ICs because of the steric hindrance around the bulky POSS core, which causes some of the c-caprolactone units near the core to be free from complexation with the CDs. From these analyses, we proposed some possible structures for the CD/star PCL ICs.
URI: http://dx.doi.org/10.1021/ma050036h
http://hdl.handle.net/11536/13808
ISSN: 0024-9297
DOI: 10.1021/ma050036h
期刊: MACROMOLECULES
Volume: 38
Issue: 8
起始頁: 3099
結束頁: 3107
顯示於類別:期刊論文


文件中的檔案:

  1. 000228442100012.pdf