Polymerization of Ethylene Glycol Dimethacrylate (EGDM), Using An Algerian Clay as Eco-catalyst (Maghnite-H+ and Maghnite-Na+)

Abstract

In this paper we have explored a novel and green method to synthesis and polymerize ethylene glycol dimethacrylate (EGDM). This technique consists on using Maghnite (Algerian clay) as a green catalyst to replace toxic catalysts. The Algerian clay has been modified using two ion exchange process to obtain Maghnite-H+ (proton exchanged process) and Maghnite-Na+ (sodium exchanged process). Synthesis experiments of EGDM and Poly (EGDM) are performed in bulk respecting the principles of green chemistry. The structure of the obtained monomer and the obtained polymer was confirmed by FT-IR, 1H-NMR and 13C-NMR, where the methacrylate end groups are clearly visible. The presence of unsaturated end group in the structure of monomer was confirmed by UV-Visible analysis. Thermogravimetric analysis (TGA) was used to study the thermal stability of these obtained products. Copyright © 2020 BCREC Group. All rights reserved

Preparation, characterization and application of the nanocomposite PCL-PEG-PCL / Bentonite-TBHSA to the removal of methylene blue (MB) dye: Adsorption, Kinetics, and Isotherm studies

“…This pattern compares well with the experimental pattern of Na-Bentonite reported in the Powder Diffraction File under the JCPDS Card No. 003-0019; is in very good agreement with earlier works [10,30,31]. After intercalation with TBHSA, the basal spacing, d001, of the resulting product becomes 14.56 Å; indicating the successful of the intercalation method.…”

“…The suspension was kept under stirring for 2hours and then allowed to stand for 24 hr in 2L cylinder. The dispersed < 2 µm Bentonite-Na clay was collected from the suspension and was then separated by centrifugation under 4500 rpm for 1h then dried at 150 °C under vacuum [30][31][32].…”

Synthesis and Characterization of Copolymers and Nanocomposites from Limonene, Styrene and Organomodified-Clay Using Ultrasonic Assisted Method

“…The main goal of this research is to look into the catalytic properties of a natural clay (Mag-H + ) as a new non-toxic catalyst for the copolymerization of limonene and styrene and Mag-CTA + as a new nano-reinforcing filler for the fabrication of nanocomposites based on styrene-limonene copolymer (lim-co-sty) using an ultrasonic assisted approach to improve the copolymer’s thermal and mechanical properties. We previously showed the benefits of various uses of this catalyst type and the kind of nano-reinforcing filler in different polymerization reactions and nanocomposites synthesis in our published work [ 36 , 37 , 38 ].…”

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

“…Mag-Na + was prepared according to the protocol described by Belbachir et al [23]. The raw-Mag supplied by Bental Spa, is crushed and finely sieved, the activation of Maghnite by sodium was carried out using 1 L of NaCl solution (1 M) and 20 g of raw-Mag (2% by weight), the latter is mixed for 24 h at room temperature, finally the Maghnite was washed several times with distilled water.…”