Preparation and characterization of poly(hydroxybutyrate-co-hydroxyvalerate)-organoclay nanocomposites

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This study describes the microstructure and thermal and mechanical properties of poly(hydroxybutyrate-co-hydroxyvalerate) (PHB/HV)-organoclay nanocomposites prepared by melt intercalation using Cloisite 30B, a monotallow bis-hydroxyethyl ammonium-modified montmorillonite clay. X-ray diffractometry and transmission electron microscopy analyses clearly confirm that an intercalated microstructure is formed and finely distributed in the PHB/HV copolymer matrix because PHB/HV has a strong hydrogen bond interaction with the hydroxyl group in the organic modifier of Cloisite 30B. The nanodispersed organoclay also acts a nucleating agent, increasing the temperature and rate of crystallization of PHB/HV; therefore, the thermal stability and tensile properties of the organoclay-based nanocomposites are enhanced. These results confirm that the organoclay nanocomposite greatly improves the material properties of PHB/HV.
Publisher
JOHN WILEY & SONS INC
Issue Date
2003-10
Language
English
Article Type
Article
Keywords

BEHAVIOR; PHASE

Citation

JOURNAL OF APPLIED POLYMER SCIENCE, v.90, no.2, pp.525 - 529

ISSN
0021-8995
DOI
10.1002/app.12702
URI
http://hdl.handle.net/10203/80108
Appears in Collection
CBE-Journal Papers(저널논문)
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