Authors: Shadpour Mallakpour Mohammad Dinari Masoud Hatami
Publish Date: 2015/02/19
Volume: 120, Issue: 2, Pages: 1293-1302
Abstract
In this work organic diacid was synthesized from tetrabromophthalic anhydrides and laspartic acid in refluxed acetic acid at the presence of pyridine The interlayer basal spacing of LDH was modified with organic diacid via coprecipitation method using ultrasonic irradiation The intercalated Mg–Al LDH mLDH materials showed an increase in interlayer distance as compared to the unmodified Mg–Al LDH by Xray diffraction Transmission electron microscopy images showed platelike nature for intercalated diacid LDH Polyvinyl alcohol PVA/mLDH nanocomposites NCs with different composition of mLDH were prepared through ultrasoundassisted technique in the deionized water by solution intercalation method Field emission scanning electron microscopy image results show that mLDH was dispersed homogeneously in PVA matrix Optical clarity of obtained NCs was investigated using UV–visible transmission spectra Thermogravimetry showed improvement in thermal properties of PVA/mLDH NCs Mechanical data showed improvement in the tensile strength and modulus with increasing of the mLDH loading
Keywords: