Layered polymer-kaolinite nanocomposites

Kaolinite (K) was reacted with liquid dimethyl sulfoxide (DMSO) producing K(DMSO)0.4. Highly ordered polymer/kaolinite materials were obtained by displacement of DMSO molecules in the K(DMSO)0.4 intercalate by polyethylene oxide (PEO) or bacterial polyhydroxybutyrate (PHB), both in the melt state at...

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Bibliographic Details
Published in:Journal of materials science 2000-06, Vol.35 (12), p.3113-3119
Main Authors: GARDOLINSKI, J. E, CARRERA, L. C. M, CANTAO, M. P, WYPYCH, F
Format: Article
Language:English
Subjects:
Applied sciences
Composites
Dimethyl sulfoxide
Exact sciences and technology
Forms of application and semi-finished materials
Fourier transforms
Infrared analysis
Interlayers
Kaolinite
Materials science
Nanocomposites
Polyethylenes
Polyhydroxybutyrate
Polymer industry, paints, wood
Polymers
Stoichiometry
Technology of polymers
Thermal analysis
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Summary:Kaolinite (K) was reacted with liquid dimethyl sulfoxide (DMSO) producing K(DMSO)0.4. Highly ordered polymer/kaolinite materials were obtained by displacement of DMSO molecules in the K(DMSO)0.4 intercalate by polyethylene oxide (PEO) or bacterial polyhydroxybutyrate (PHB), both in the melt state at 130°C and 180°C, respectively. The hybrid nanocomposites obtained were characterized by powder X-ray diffractometry (PXRD), Fourier Transform Infrared spectrometry (FTIR) and thermal analysis (simultaneous TG/DSC). The obtained results are consistent with the total replacement of DMSO molecules by the macromolecular linear chains that lie flat building a monolayer of the polymer in the interlayer space of kaolinite. The stoichiometry of the compounds estimated from the TG/DSC measurements are: K(DMSO)0.40±0.02, K(PHB)0.82±0.02, K(PEO)3.40±0.02.
ISSN:0022-2461
1573-4803
DOI:10.1023/A:1004820003253