Dynamic and structural evaluation of poly(3-hydroxybutyrate) layered nanocomposites

Layered poly(3-hydroxybutyrate) (PHB) nanostructured materials were prepared containing two commercial organophilic clays, Viscogel B8 and Viscogel S7, at clay concentrations of 1%, 3%, 5%, 7% and 10%. The materials obtained were characterized by the traditional methods of X-ray diffraction, thermog...

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Bibliographic Details
Published in:Polymer testing 2013-02, Vol.32 (1), p.165-174
Main Authors: Bruno Rocha e Silva, Mariana, Tavares, Maria Inês Bruno, Oliveira da Silva, Emerson, Neto, Roberto Pinto Cucinelli
Format: Article
Language:English
Subjects:
Applied sciences
Clays
Composites
Crystallinity
Differential scanning calorimetry
Diffraction
Dynamic structural analysis
Exact sciences and technology
Forms of application and semi-finished materials
LF-NMR
Nanocomposite
Nanocomposites
Nanostructured materials
PHB
Polymer industry, paints, wood
Technology of polymers
X-rays
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Summary:Layered poly(3-hydroxybutyrate) (PHB) nanostructured materials were prepared containing two commercial organophilic clays, Viscogel B8 and Viscogel S7, at clay concentrations of 1%, 3%, 5%, 7% and 10%. The materials obtained were characterized by the traditional methods of X-ray diffraction, thermogravimetric analysis, differential scanning calorimetry and optical microscopy, as well as an alternative method, low-field nuclear magnetic resonance. The nanostructured materials obtained presented an excellent degree of intercalation/exfoliation and the clay was able to promote changes in the polymer's structure, reducing its crystallinity degree.
ISSN:0142-9418
1873-2348
DOI:10.1016/j.polymertesting.2012.09.006