Direct Synthesis and Characterization of Photo-Crosslinkable Biodegradable PLA-PEG-PLA Ttiblock Copolymer with Methacrylates Functions by Green Montmorillonite Clay Catalyst

Mohamed Benachour1, Aslya El-Kebir1, Amine Harrane1, 2, Rachid Meghabar1, Mohammed Belbachir1
Affiliation: 
1 Laboratoire de Chimie des Polymères, Département de Chimie, FSEA, University of Oran 1 Ahmed Benbella BP N° 1524 El M’Naouar, 31000 Oran, Algeria 2 FSEI University of Abdelhamid Ibn Badis – Mostaganem amineharrane@yahoo.fr
DOI: 
https://doi.org/10.23939/chcht14.04.474
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Abstract: 
Di-methacrylated PLA-PEG-PLA triblock copolymers of polylactide and polyethylene glycol were synthesized in one-step process by bulk cationic polymerization of lactide in the presence of PEG with different average molecular weights, using Maghnite-H+, an acidic montmorillonite clay, as a solid non-toxic catalyst. The obtained di-methacrylated copolymer was analyzed by 1H NMR and DSC. The effect of Maghnite-H+ proportions and PEG average molecular weight on the copolymerization and methacrylation yields and on average molecular weight of the resulting copolymers was studied.
References: 

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