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Paper Information

Journal:   JOURNAL OF NANOSTRUCTURES   2013 , Volume 3 , Number 3; Page(s) 323 To 331.
 
Paper: 

STUDY OF NON-ISOTHERMAL CRYSTALLIZATION KINETICS OF BIODEGRADABLE POLY (ETHYLENE ADIPATE)/SIO2 NANOCOMPOSITES

 
 
Author(s):  MEMARZADEH M.R.*, MOHSEN NIA M.
 
* DEPARTMENT OF CHEMISTRY, UNIVERSITY OF KASHAN, KASHAN, IRAN
 
Abstract: 

Poly (ethylene adipte) and poly (ethylene adipate) /silica nanocomposite (PEAd/SiO2) containing 3 wt.% SiO2 were prepared by an in situ method. The examinations on the nonisothermal crystallization kinetic behavior have been conducted by means of differential scanning calorimeter (DSC). The Avrami, Ozawa, and combined Avrami and Ozawa equations were applied to describe the crystallization kinetics and to determine the crystallization parameters of the prepared PEAd/SiO2 nanocomposites. It is found that the inclusion of the silica nanoparticles can accelerate the nucleation rate due to heterogeneous nucleation effect of silica on the polymer matrix. According to the obtained results, the combined Avrami and Ozawa equation shown that the better model for examination of this system.

 
Keyword(s): NANOCOMPOSITE, NON-ISOTHERMAL CRYSTALLIZATION, ACTIVATION ENERGY, SILICA
 
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