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Melt Intercalation of PMMA into Organically-Modified Layered Silicate

Published online by Cambridge University Press:  10 February 2011

Z. Shen ,
G. P. Simon  and
Y-B. Cheng
Z. Shen
Affiliation:
Department of Materials Engineering, Monash University, Clayton 3168, Victoria, Australia
G. P. Simon
Affiliation:
Department of Materials Engineering, Monash University, Clayton 3168, Victoria, Australia
Y-B. Cheng
Affiliation:
Department of Materials Engineering, Monash University, Clayton 3168, Victoria, Australia
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Abstract

Organic-inorganic hybrid nanocomposite materials of poly(methyl methacrylate) (PMMA) and organically-modified silicate (B34) systems have been prepared via melt intercalation with variation of tacticity and molecular weight as the main molecular variables. Only two of the PMMA samples (with the lowest glass transition temperatures) were able to undergo large-scale intercalation into B34, as seen by X-ray diffraction (XRD) and Infrared spectroscopy. The saturation weight ratio of PMMA to B34 was about 25:75 (wt%), deduced by a controlled differential scanning calorimetry (DSC) experiment. Two new absorption bands of PMMA-B34 hybrid in Fourier transform-infrared spectrometry (FTIR) were demonstrated for first time in this system and show a change in molecular interaction of bulk and intercalated PMMA. The degradation temperature of the PMMA-B34 hybrid is higher than that of PMMA alone, or a physical mixture of PMMA and silicate under an air or a nitrogen flow.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 576: Symposium DD – Organic/Inorganic Hybrid Materials II , 1999 , 137
Copyright
Copyright © Materials Research Society 1999

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References

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