Study on Nanocomposite Thermoplastic Elastomer Gels

The effect of several network‐forming nanoscale materials such as two different types of graphite and multiwalled carbon nanotube on the property development of thermoplastic elastomer (TPE) gels prepared from microphase‐ ordered poly(styrene‐b‐(ethylene‐co‐butylene)‐b‐styrene) (SEBS) triblock copol...

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Bibliographic Details
Published in:Macromolecular symposia. 2007-04, Vol.249-250 (1), p.601-609
Main Authors: Paglicawan, Marissa A., Balasubramanian, Maridass, Kim, Jin Kuk
Format: Article
Language:English
Subjects:
Dynamics
Gelation
Gels
Nanocomposites
Nanomaterials
nanoparticles
Nanostructure
physical gel
Polystyrene resins
thermoplastic elastomer
Thermoplastic elastomers
viscoelastic properties
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Summary:The effect of several network‐forming nanoscale materials such as two different types of graphite and multiwalled carbon nanotube on the property development of thermoplastic elastomer (TPE) gels prepared from microphase‐ ordered poly(styrene‐b‐(ethylene‐co‐butylene)‐b‐styrene) (SEBS) triblock copolymer dissolved in paraffin oil was studied. Dynamic rheological measurements of the resultant nanocomposite TPE (NCTPE) gels showed that at temperature between 30 °C to 40 °C below the gel point, the NCTPE gels have dynamic storage modulus greater than loss modulus (G′ and G″), thereby indicating that at ambient temperature a physical network is still present despite the addition of nanoparticles. In general, the nanoparticles lower the gelation temperature. The X‐ray diffraction of NCTPE gels showed that EG2 system exhibited intercalation, those with CNTs exhibited exfoliation and EG1 did not change at all.
ISSN:1022-1360
1521-3900
DOI:10.1002/masy.200750443