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Fabrication of syndiotactic polystyrene nanocomposites with exfoliated clay and their properties

Title
Fabrication of syndiotactic polystyrene nanocomposites with exfoliated clay and their properties
Authors
Kim, MH[Kim, Mun Ho]Park, OO[Park, O. Ok]
DGIST Authors
Park, OO[Park, O. Ok]
Issue Date
2012-07-25
Citation
Journal of Applied Polymer Science, 125, E630-E637
Type
Article
Article Type
Article
Keywords
Cetyl Pyridium ChloridesChlorine CompoundsClayClay LayersClay NanocompositesCrystallizationCrystallization RatesDifferential Scanning CalorimetryExfoliated ClayMelt-Intercalation ProcessMelt IntercalationMixing ProcessNanocompositeNanocompositesNeat PolymerNucleating EffectOrganophilic ClaysPolystyrenesStyrenic PolymersSyndiotactic PolystyreneSyndiotactic Polystyrenes (SPs)Thermal InstabilitiesTransmission Electron MicroscopyX Ray Diffraction
ISSN
0021-8995
Abstract
The fabrication of syndiotactic polystyrene (sPS)/organophilic clay nanocomposite was conducted via melt intercalation process. To obtain sPS nanocomposites with exfoliated clay, the stepwise mixing process using RPS as amorphous styrenic polymer was adopted. Also, organophilic clay modified by cetyl pyridium chloride was used to overcome the thermal instability of commonly used clay and to enhance the compatibility of clay with sPS. We could obtain exfoliated sPS nanocomposites in all compositions without any collapsed clay layers. The microstructures of nanocomposites were confirmed by X-ray diffraction and transmission electron microscopy. The crystallization rate of nanocomposites investigated by differential scanning calorimetry increases with the content of clay, which may be due to the nucleating effect of the clay layer. Nanocomposites exhibited enhanced stiffness relative to the neat polymer. © 2012 Wiley Periodicals, Inc.
URI
http://hdl.handle.net/20.500.11750/3353
DOI
10.1002/app.36619
Publisher
Wiley Blackwell
Files:
There are no files associated with this item.
Collection:
Energy Science and EngineeringETC1. Journal Articles


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