Catalytic Activity of Maghnite-H+ in the Synthesis of Polyphenylmethylsiloxane under Mild and Solvent-free Conditions

Kherroub, Djamal Eddine; Belbachir, Mohammed; Lamouri, Saad; Bouhadjar, Larbi; Chikh, Karim

doi:10.3311/ppch.10694

Cited by 4 publications

(2 citation statements)

References 24 publications

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“…In the aim of continuing the synthesis of other dioxolanes, we propose in this present work the use of Algerian clay catalyst as Maghnia clay originating from Tlemcen located in the North West Algerian region. The Algerian clay (Maghnia) is very abundant solid catalyst, low cost with simple preparation and very easy process [24,25]. We have studied the behavior of an easy preparation of an Algerian clays activated by hydrochloric acid for a mixture of glycerol and acetone solvent-free, without producing waste with easy separation of reagents and a important commercial product.…”

Section: Introductionmentioning

confidence: 99%

Algerian Acid Activated Clays as Efficient Catalysts for a Green Synthesis of Solketal by Chemoselective Acetalization of Glycerol with Acetone

Alali¹,

Lebsir

Amri

et al. 2018

Bull. Chem. React. Eng. Catal.

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The production of solketal and conversion of glycerol takes a major importance in the field of the sustainability of the biodiesel industry. The synthesis of (2,2-dimethyl-1,3-dioxolan-4-yl)methanol by the acetalization of glycerol with acetone successfully applied out using various Algerian acid activated clays (maghnia-H+) under autogenous pressure and without solvent. The acid catalyst clays are prepared by an easy technique by activation with the available and low-cost Maghnia clay. The purified Maghnia clay named ALC and the resulting series of acid-activated clays AL1, AL2, AL3, and AL4 are characterized by X-ray Fluorescence (XRF) investigation, N2-adorption/desorption Brunauer–Emmett–Teller (BET) surface area, X-rays Diffraction (XRD), Fourier Transform Infra Red (FT-IR) spectroscopy, SEM microscopy and the cation exchange capacity (CEC) with copper bisethylenediamine complex method, in order to study the effect of activation at the acid and the catalytic behaviour in the acetalization reaction. The results show a high catalytic activity whose that the yield of solketal production interest reached 95 % at a temperature of 40 °C for a reaction time of 48 hours with full selectivity and glycerol conversion reaching up to 89 %. A mechanistic is proposed to explain the chemoselective of solketal production. These results indicate the potential of this Algerian acid activated clays catalysts for the acetalization of glycerol for an environmentally benign process. Copyright © 2018 BCREC Group. All rights reservedReceived: 28th March 2018; Revised: 17th October 2018; Accepted: 30th October 2018; Available online: 25th January 2019; Published regularly: April 2019How to Cite: Alali, K., Lebsir, F., Amri, S., Rahmouni, A., Srasra, E., Besbes, N. (2019). Algerian Acid Activated Clays as Efficient Catalysts for a Green Synthesis of Solketal by Chemoselective Acetalization of Glycerol with Acetone. Bulletin of Chemical Reaction Engineering & Catalysis, 14 (1): 130-141 (doi:10.9767/bcrec.14.1.2445.130-141)Permalink/DOI: https://doi.org/10.9767/bcrec.14.1.2445.130-141

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Section: Introductionmentioning

confidence: 99%

Algerian Acid Activated Clays as Efficient Catalysts for a Green Synthesis of Solketal by Chemoselective Acetalization of Glycerol with Acetone

Alali¹,

Lebsir

Amri

et al. 2018

Bull. Chem. React. Eng. Catal.

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“…The chemical and physical properties of the mineral clay depend strongly on the amount of water present between the layers. Clay minerals have catalytic properties in the polymerization reactions of several cyclic and siloxane monomers due of the surface acidity, which have been the subject of huge number of studies [10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Highly Conductive and Soluble Polymer Synthesized by Copolymerization of Thiophene with Para-Methoxybenzaldehyde Using Clay Catalyst

Kherroub

Bouhadjar

Boukoussa

et al. 2019

Bull. Chem. React. Eng. Catal.

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This present research focuses on the synthesis of a new conducting polymer based on the copolymerization of thiophene with para-methoxybenzaldehyde, using a clay as an ecologic catalyst named Maghnite-H + . The catalysis of the reaction by Maghnite-H + can confer it important benefits, such as the green environment aspect. The reaction was carried out in dichloromethane as a solvent. The new copolymer obtained is a poly (heteroarylene methines) small bandgap polymers precursor. It can be considered as a useful model system for examining the impacts of π-conjugation length on the electronic properties of this type of conjugated polymers. The measurements of the electrical conductivity gave a value of order of 0.0120 .cm -1 , allowing its use in various important applications. The characteristics of the molecular structure and the thermal behavior of the conducting polymer obtained are also discussed using different methods of analysis, such as: proton nuclear magnetic resonance (NMR), Fourier transform infrared (FTIR) spectroscopy, ultraviolet/visible spectroscopy, and thermal gravimetric analysis (TGA). searchers. They are considered micro-reactors because they are capable of concentrating large quantities of these reactive species between their aluminosilicate layers. The presence of water in the clay minerals and the existence of structural defects make these inorganic solids effective. Lewis and Brönsted acids (some clays

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Maghnite: novel inorganic reinforcement for single-step synthesis of PDMS nanocomposites with improved thermal, mechanical and textural properties

Kherroub

Boulaouche

2020

Res Chem Intermed

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Catalytic Activity of Maghnite-H+ in the Synthesis of Polyphenylmethylsiloxane under Mild and Solvent-free Conditions

Abstract: In this study, a new and easy strategy was discussed for the purpose of synthesizing of a polymer of phenylmethylcyclosiloxane type (PPMS)

Cited by 4 publications

References 24 publications

Algerian Acid Activated Clays as Efficient Catalysts for a Green Synthesis of Solketal by Chemoselective Acetalization of Glycerol with Acetone

Algerian Acid Activated Clays as Efficient Catalysts for a Green Synthesis of Solketal by Chemoselective Acetalization of Glycerol with Acetone

Highly Conductive and Soluble Polymer Synthesized by Copolymerization of Thiophene with Para-Methoxybenzaldehyde Using Clay Catalyst

Maghnite: novel inorganic reinforcement for single-step synthesis of PDMS nanocomposites with improved thermal, mechanical and textural properties

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