Characteristics of polyvinylpyrrolidone-layered silicate nanocomposites prepared by attrition ball milling

Title
Characteristics of polyvinylpyrrolidone-layered silicate nanocomposites prepared by attrition ball milling
Authors
구종민함형택최민호김상욱정인재
Issue Date
2003-02
Publisher
Polymer
Citation
VOL 44, NO 3, 681-689
Abstract
Polyvinylpyrrolidone (PVP)/sodium montmorillonite (MMT) nanocomposites prepared via the solution intercalation method were investigated by UV/vis, SEM, X-ray diffraction, TEM, FT-IR and PLM (polarized light microscopy). PVP/MMT nanocomposites show exfoliation below 20 wt% MMT and intercalation above this concentration. Nanocomposites retain good optical clarity and increased thermal resistance with MMT content. The compatibility between PVP and MMT and their enhanced properties may be explained by hydrogen bonding interactions. In addition, the nanocomposites prepared under more rigorous mixing conditions show better transparency because the smaller particle sizes are induced. In addition, the study on optically clear PVP/MMT suspensions helps one to understand how optical anisotropy of MMT is affected by the existence of polymer in. aqueous solution. (C) 2002 Elsevier Science Ltd. All rights reserved.
URI
http://pubs.kist.re.kr/handle/201004/59059
ISSN
00323861
Appears in Collections:
KIST Publication > Article
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