Effect of nanoparticles on the thermal stability of PMMA nanocomposites prepared by in situ bulk polymerization

Wantinee Viratyaporn, Richard L. Lehman

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

Al2O3 and ZnO filled poly(methyl methacrylate) nanocomposites were synthesized by free radical (bulk) polymerization. Efficient dispersion was achieved by predispersing the nanoparticles in propylene glycol methyl ether acetate (PGMEA) followed by ultrasonication of nanoparticles into the PMMA syrup. Thermal analysis confirms chemisorption between PGMEA and metal oxide particles. The addition of nanoparticle affects degradation mechanism and consequently improves thermal stability of PMMA. The reduction of polymer chain mobility and the tendency of nanoparticles to eliminate free radicals are the principal effects responsible for these enhancements.

Original languageEnglish (US)
Pages (from-to)267-273
Number of pages7
JournalJournal of Thermal Analysis and Calorimetry
Volume103
Issue number1
DOIs
StatePublished - Jan 2011

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

Keywords

  • Alumina
  • Functionalization
  • Poly(methyl methacrylate)
  • Polymer nanocomposites
  • Thermal analysis

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