Resumo

MENDEZ, Yuly; ZUNIGA, Camilo; GOMEZ-BAQUERO, Fernando  e  DUARTE RUIZ, Álvaro. Synthesis of a Poly (Methyl Methacrylate)-Multi-Walled Carbon Nanotube Composite. rev.ing. [online]. 2009, n.29, pp.41-51. ISSN 0121-4993.

The purpose of the current work was the lab-scale synthesis and thermal characterization of a Poly(methyl methacrylate)-Multi-walled Carbon Nanotube (PMMAMWNTs) composite. The PMMA-MWNTs composite was produced by mass in-situ polymerization, using Benzoyl Peroxide (BPO) as initiator. As a previous step to the polymerization, a BPO-MWNTs reaction was performed to trigger the formation of free radicals in the surface of the MWNTs. The MWNT concentration in the composite was varied to produce samples of 0%, 0.1% and 0.5% w/w of MWNTs in PMMA. The produced composites show an adequate dispersion and different thermal properties than the PMMA blank, suggesting a property transfer from the nanoparticles. The proposed production method is simple, of relatively low cost and easily applicable in a variety of industrial applications.

Palavras-chave : Bulk polymerization; carbon nanotubes; nanocomposites; Poly(methyl methacrylate).

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