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Title of Journal: Polym Bull

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Abbravation: Polymer Bulletin

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Springer Berlin Heidelberg

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DOI

10.1002/ange.19320450606

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1436-2449

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Thermal and mechanical stabilities of composite fi

Authors: Shadpour Mallakpour Amin Zadehnazari
Publish Date: 2013/09/07
Volume: 71, Issue: 1, Pages: 207-225
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Abstract

An amino acid containing polyamidethioesterimide PATEI possessing a conjugated thiadiazol ring was shown to be effective for dispersing multiwall carbon nanotubes MWCNTs in NN′dimethylacetamide Through casting of these dispersions MWCNT/PATEI composite films were successfully fabricated on substrates and showed no signs of macroscopic aggregation To increase the compatibility between PATEI matrix and MWCNTs carboxylfunctionalized MWCNTs fMWCNTs were used in this study The fMWCNTs were dispersed homogeneously in the PATEI matrix while the structure of the polymer and the MWCNTs structure were stable in the preparation process as revealed by transmission electron microscopy Tensile tests and thermal analysis were carried out on freestanding composite films for different MWCNT loading levels Results showed that overall mechanical and thermal properties of the composites were greatly improved as compared with the neat PATEI film Fourier transform infrared spectroscopy powder Xray diffraction and field emission electron microscopy were also used to evaluate the MWCNT/PATEI composite systemWe thank the Research Affairs Division Isfahan University of Technology IUT for the financial support of this work Further financial support from National Elite Foundation NEF and Center of Excellency in Sensors and Green Chemistry Research IUT is gratefully acknowledged

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