Poly(ethylene naphthalate)/Clay Nanocomposites Based on Thermally Stable Trialkylimidazolium-Treated Montmorillonite: Thermal and Dynamic Mechanical Properties
Authors: Chua, Yang Choo; Wu, Shucheng; Lu, Xuehong
Source: Journal of Nanoscience and Nanotechnology, Volume 6, Number 12, December 2006 , pp. 3985-3988(4)
Publisher: American Scientific Publishers
Abstract:Thermally stable organically modified clays based on 1,3-didecyl-2-methylimidazolium (IM2C10) and 1-hexadecyl-2,3-dimethyl-imidazolium (IMC16) were used to prepare poly(ethylene naphthalate) (PEN)/montmorillonite (MMT) nanocomposites via a melt intercalation process. Examination by X-ray diffraction and transmission electron microscopy indicates that an intercalated nanocomposite was formed with IMC16-MMT, while unmodified MMT (Na-MMT) and IM2C10-MMT are generally incompatible with PEN. Thermogravimetric analysis reveals that the peak derivative weight loss temperature of the intercalated PEN/IMC16-MMT was more than 10 °C higher compared to neat PEN, PEN/Na-MMT, or PEN/IM2C10-MMT. Dynamic mechanical analysis also showed that a more significant improvement of the storage modulus was achieved in the better dispersed PEN/IMC16-MMT. The effect of annealing on the dynamic storage modulus of the hybrids is also investigated.
Document Type: Research article
Publication date: 2006-12-01
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