Synthesis and characterization of PMMA/silica nanocomposites

Document Type

Conference Proceeding

Publication Date

7-10-2006

Abstract

Thermal stability and mechanical properties of polymeric nanocomposites consisting of functionalized silica nano-particles (average diameter 75nm) embedded in polymethyl methacrylate (PMMA), with and without surface grafting of PMMA, were studied. Results from differential scanning calorimetry show an increase of T g upon the introduction of the nano-particles, however, only to a limited extent. Similar results were observed in dynamic mechanic thermal analysis. The storage modulus also showed a slight increase less than 5%. Samples with PMMA grafted particles synthesized via in-situ polymerization in supercritical CO 2 did not show an anticipated drastic improvement. This may result from the plasticizing effect of the stabilizer used the dispersion polymerization.

Identifier

33745599910 (Scopus)

Publication Title

Annual Technical Conference ANTEC Conference Proceedings

First Page

526

Last Page

531

Volume

1

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