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Journal of Thermal Analysis and Calorimetry

, Volume 111, Issue 1, pp 619–626 | Cite as

Thermal evaluation of cashew nutshell liquid as new bioadditives for poly(methyl methacrylate)

  • Diego Lomonaco
  • Francisco Jonas Nogueira Maia
  • Selma Elaine Mazzetto
Article

Abstract

In this study, the thermal-oxidative stability of poly(methyl methacrylate), PMMA, 1 % additivated with replenishable phenolic lipids is evaluated by thermogravimetric (TG/DTG) analyses and differential scanning calorimetry (DSC) analyses. Since technical cashew nutshell liquid (CNSL), a byproduct from the cashew industry, is composed basically of two phenolic lipids, cardanol and cardol, the utilization of this industrial waste and its main components as a new source of bioadditives for use as antioxidants is evaluated. The TG analyses revealed that addition of the phenolic constituent of CNSL increased the thermal stability of PMMA films considerably. The results obtained were also confirmed by DSC analyses.

Keywords

Poly(methyl methacrylate) CNSL Cardanol Cardol Antioxidant 

Notes

Acknowledgements

The authors wish to thank the Brazilian agencies CNPq (Processo 565320/2008-4) and CAPES by the financial support. Also to CENAUREMN for NMR analyses, and Amêndoas do Brasil LTDA for the technical CNSL samples.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2012

Authors and Affiliations

  • Diego Lomonaco
    • 1
  • Francisco Jonas Nogueira Maia
    • 1
  • Selma Elaine Mazzetto
    • 1
  1. 1.Departamento de Química Orgânica e Inorgânica, Laboratório de Produtos e Tecnologia em ProcessosUniversidade Federal do CearáFortalezaBrazil

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