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Polymer Bulletin
Erschienen in: Polymer Bulletin 6/2009

01.12.2009 | Original Paper

The influence of side chains on formation of inclusion complexes prepared with polyolefin and cyclodextrins

verfasst von: Chun Li, Naoe Isshiki, Hiromu Saito, Kazufumi Kohno, Akinori Toyota

Erschienen in: Polymer Bulletin | Ausgabe 6/2009

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Abstract

We investigated the formation of inclusion complexes (ICs) between cyclodextrins (CDs) with different cavity size and polyolefin (PO) with different side chains by using Fourier transform infrared (FTIR) spectroscopy, wide-angle X-ray diffraction (WAXD) and differential scanning calorimetry. The analysis of FTIR spectra revealed that the resultants were complexes of CD and PO, and the analysis of WAXD revealed that the molecules of CD had a channel structure due to the formation of ICs. We found that IC could not be obtained when the cavity size of CD was small for PO molecules to thread and it was too large for cross-sectional area of PO molecules. Thus, it was found that PO1 with few side chains could form IC with α-CD, and PO2 with ethyl side chain could form IC with β-CD and γ-CD, while the PO3 with 2-methyl-propyl side chain could form IC with γ-CD. These results suggest that the cross-sectional areas of polymer and the cavity size of CDs play critical roles in the formation of ICs. It is only possible to form ICs when the polymer chains can tread into cavities of CDs, and the space between the polymer and CD is suitable to provide enough intermolecular interaction to keep the structure of IC stable.
Nächster Artikel Synthesis of ABC miktoarm star block copolymers from a new heterotrifunctional initiator by combination of ATRP and ROP

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Metadaten
Titel
The influence of side chains on formation of inclusion complexes prepared with polyolefin and cyclodextrins
verfasst von
Chun Li
Naoe Isshiki
Hiromu Saito
Kazufumi Kohno
Akinori Toyota
Publikationsdatum
01.12.2009
Verlag
Springer-Verlag
Erschienen in
Polymer Bulletin / Ausgabe 6/2009
Print ISSN: 0170-0839
Elektronische ISSN: 1436-2449
DOI
https://doi.org/10.1007/s00289-009-0119-y

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