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Ultrasound Assisted Synthesis of Polylimonene and Organomodified-clay Nanocomposites: A Structural, Morphological and Thermal Properties

1Laboratoire de Chimie des Polymères, Département de Chimie, Faculté des Sciences Exactes et Appliquées, Université Oran1 Ahmed Benbella, BP 1524, El-Mnaouer, 31000 Oran, Algeria

2Centre de Recherche Scientifique et Technique en Analyses Physico-Chimiques (CRAPC), Algeria

3Centre for Rapid and Sustainable Product Development, Institute Polytechnic of Leiria, Marinha Grande, Portugal

4 Department of Chemistry, FSEI, University of Abdelhamid Ibn Badis Mostaganem, Algeria

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Received: 15 Oct 2020; Revised: 22 Oct 2020; Accepted: 23 Oct 2020; Available online: 9 Nov 2020; Published: 28 Dec 2020.
Editor(s): Istadi Istadi
Open Access Copyright (c) 2020 by Authors, Published by BCREC Group under

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Polylimonene-clay nanocomposites (PLM-Mag 2, 3, 6 and 10% by weight of clay) were prepared by mixing Maghnite-CTA+ (Mag-CTA+) and polylimonene (PLM) in solution using ultrasonic irradiation. The catalyst preparation method were studied in order to determine and evaluate their structural, morphological and thermal properties. The Mag-CTA+ is an organophylic montmorillonite silicate clay prepared through a direct exchange process, using green natural clay of Maghnia (west of Algeria) called Maghnite. The Algerian clay was modified by ultrasonic-assisted method using cetyltrimethylammonuim bromide (CTAB) in which they used as green nano-reinforcing filler. Polylimonene was obtained by the polymerization of limonene, using Mag-H+ as a catalyst. The morphology of the obtained nanocomposites was studied by X-ray diffraction (XRD), scanning electronic microscopy (SEM), transmission electronic microscopy (TEM) and infrared spectroscopy (FT-IR). Thermogravimetric analysis (TGA) shows that the nanocomposites have a high degradation temperature (200−250 °C) compared with the pure polylimonene (140 °C). The analyses confirmed the chemical modification of montmorillonite layers and their uniformly dispersion in the polylimonene matrix. Exfoliated structures were obtained for low amounts of clay (2 and 3% by weight), while intercalated structures and immiscible regions were detected for high amounts of clay (6 and 10% by weight). Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (



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Keywords: Ultrasound; Polylimonene; Green-nanocomposites; Organo-modified clay; Polymer/clay
Funding: (DGRSDT) Direction Générale de la Recherche Scientifique et du Développement Technologique-Algeria ; CDRSP-IP Leiria (Centre For Rapid and Sustainable Product Development)

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