Poly(epsilon caprolactone)/clay nanocomposites via host-guest chemistry
Date
2015Source Title
European Polymer Journal
Print ISSN
0014-3057
Publisher
Elsevier Ltd
Volume
71
Pages
259 - 267
Language
English
Type
ArticleItem Usage Stats
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Abstract
Cyclodextrin-modified montmorillonite (MMT-CD) has been prepared from commercial montmorillonite clay (Closite 30B) containing two hydroxyl groups by reacting succinic anhydride through esterification. Poly(epsilon caprolactone) (PCL)/clay nanocomposites are prepared by host-guest chemistry between MMT-CD as host and PCL, hydrophobic polymer as guest. The structures of the intermediates and final nanocomposite are investigated in detail by FT-IR XRD, TEM, DSC and TGA measurements. The intercalated/exfoliated morphologies are determined by combined XRD and TEM analyses. Thermal stabilities of all nanocomposites are improved by the addition of MMT-CD compared to the neat polymer. The DSC data confirm that the crystallinity of PCL is slightly increased by increasing clay loading. © 2015 Elsevier Ltd. All rights reserved.
Keywords
CyclodextrinHost-guest chemistry
Nanocomposites
Organoclay
Ring-opening polymerization
Self-assembly
Clay minerals
Cyclodextrins
Intercalation