Improvement of thermal stability of poly(methyl methacrylate) by incorporation of colloidal TiO2 nanorods

Abstract

The thermal degradation behaviour of oleic acid-capped colloidal anatase TiO2 nanorods, poly(methyl methacrylate), and their nanocomposites has been studied. Thermogravimetric and differential thermal analysis have been carried out in nitrogen atmosphere for both nanorods, and nanocomposites with nanorod loading from 5 to 30 wt% relative to the polymer. Our study shows that the degradation of the oleic acid-capped nanorods in nitrogen is mainly endothermic and occurs in two steps. The thermal stability of the nanocomposites is improved on increasing the filler loading in the considered range, as the nanorods prevent rapid heat diffusion and limit further degradation. This effect seems to be favoured by the nanorods increased mobility, leading to enhanced dispersion in the matrix upon heating the samples during the thermal analysis.


Tutti gli autori

  • N. Patra , M. Salerno , M. Malerba , P. D. Cozzoli , A. Athanassiou

Titolo volume/Rivista

POLYMER DEGRADATION AND STABILITY


Anno di pubblicazione

2011

ISSN

0141-3910

ISBN

Non Disponibile


Numero di citazioni Wos

17

Ultimo Aggiornamento Citazioni

28/04/2018


Numero di citazioni Scopus

20

Ultimo Aggiornamento Citazioni

28/04/2018


Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile