Structural, morphological and thermal properties of nanocomposites poly(GMA)/clay prepared by ultrasound and in-situ polymerization

Zakaria Cherifi; Bouhadjar Boukoussa; Aniss Zaoui; Mohammed Belbachir; Rachid Meghabar

doi:10.1016/j.ultsonch.2018.05.027

Structural, morphological and thermal properties of nanocomposites poly(GMA)/clay prepared by ultrasound and in-situ polymerization

Ultrason Sonochem. 2018 Nov:48:188-198. doi: 10.1016/j.ultsonch.2018.05.027. Epub 2018 May 23.

Authors

Zakaria Cherifi¹, Bouhadjar Boukoussa², Aniss Zaoui¹, Mohammed Belbachir¹, Rachid Meghabar¹

Affiliations

¹ Laboratoire de Chimie des Polymères, Université d'Oran1 Ahmed Ben Bella, BP 1524, El-Mnaouer, 31000 Oran, Algeria.
² Laboratoire de Chimie des Materiaux L.C.M, Université d'Oran1 Ahmed Ben Bella, BP 1524, El-Mnaouer, 31000 Oran, Algeria; Département de Génie des Matériaux, Faculté de Chimie, Université des Sciences et de la Technologie Mohamed Boudiaf, BP 1505, El-Mnaouer, 31000 Oran, Algeria. Electronic address: bbouhdjer@yahoo.fr.

PMID: 30080541
DOI: 10.1016/j.ultsonch.2018.05.027

Abstract

This work focuses on the preparation and characterization of nanocomposites poly(glycidylmethacrylate)/organoclay. Effect of the organoclays nature and the preparation method were investigated in order to evaluate their structural, morphological and thermal properties. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), nitrogen sorption at 77 K, scanning and transmission electronic microscopy (SEM, TEM) and thermogravimetric analysis (TGA) were employed to determine the features of the obtained materials. In the first step, the Algerian clay was modified by ultrasonic-assisted method using different concentrations of CTAB or TBAHS in which were used as green nano-filler. A series of nanocomposites were prepared by two different methods. The first deals the in-situ polymerization of GMA within the organoclay galleries and the second pathway involves the use of solution blending of poly(GMA) assisted by ultrasound. The obtained results confirm the intercalation of surfactants within the clay layers, while the nanocomposites obtained by the both methods showed different morphologies and structures in which the exfoliated and intercalated forms were obtained. Both nanocomposites displayed significant enhancement in the thermal stabilities compared to the unmodified poly(GMA). The best results in terms of reaction time, clay dispersion and nanocomposite yield were obtained by the ultrasound method.

Keywords: In-situ polymerization; Nanocomposite; Poly(GMA); Polymer/clay; Ultrasound.