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PS-TiO2 Nanocomposites: Thermal Investigations

Published online by Cambridge University Press:  28 March 2011

Rafael Villegas ,
Yun Zhai ,
Hailan Xu ,
Dorina Magdalena Chipara ,
David Hui ,
Karen Lozano  and
Mircea Chipara
Rafael Villegas
Affiliation:
Mechanical Engineering, The University of Texas Pan American, Edinburg, TX, United States.
Yun Zhai
Affiliation:
Mechanical Engineering, University of New Orleans, New Orleans, MO, United States.
Hailan Xu
Affiliation:
Mechanical Engineering, University of New Orleans, New Orleans, MO, United States.
Dorina Magdalena Chipara
Affiliation:
Physics and Geology, The University of Texas Pan American, Edinburg, TX, United States.
David Hui
Affiliation:
Mechanical Engineering, University of New Orleans, New Orleans, MO, United States.
Karen Lozano
Affiliation:
Mechanical Engineering, The University of Texas Pan American, Edinburg, TX, United States.
Mircea Chipara
Affiliation:
Physics and Geology, The University of Texas Pan American, Edinburg, TX, United States.
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Abstract

Nanocomposites of polystyrene loaded with various amounts of anatase (ranging between 0 % wt. and 20 % wt.) have been synthesized and investigated by thermal analysis. The research was focused on the simulation of Thermogravimetric Analysis data, aiming to a refined understanding of the interactions between of polystyrene and TiO2 nanoparticles. The dependence of the first derivative of residual mass on temperature has been used to determine more accurately the temperature at which the mass loss is maxim. Several functions have been used to simulate the dependence of the first derivative of mass loss on the temperature of the sample. The highest correlation coefficient was obtained for the asymmetric Gaussian combination, which connects two halves of a Gaussian line with different linewidth. An increase of the thermal stability of the polymeric matrix upon loading with TiO2 is reported.

Keywords

differential thermal analysis (DTA)thermogravimetric analysis (TGA)polymer
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1312: Symposium HH/II/JJ – Polymer-Based Materials and Composites—Synthesis, Assembly and Applications , 2011 , mrsf10-1312-ii11-10
Copyright
Copyright © Materials Research Society 2011

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References

REFERENCES

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