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Open AccessArticle

Reactive Extrusion and Magnesium (II) N-Heterocyclic Carbene Catalyst in Continuous PLA Production

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Rosica Mincheva, Satya Narayana Murthy Chilla, Richard Todd, Brieuc Guillerm, Olivier Coulembier, Philippe Dubois, Jean-Marie Raquez. Laboratory of Polymeric and Composite Materials, University of Mons, 23 Place du Parc, B-7000 Mons, Belgium
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Julien De Winter, Pascal Gerbaux. Organic Synthesis and Mass Spectrometry Laboratory, University of Mons, 23 Place du Parc, B-7000 Mons, Belgium
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Author to whom correspondence should be addressed.
Polymers 2019, 11(12), 1987; https://doi.org/10.3390/polym11121987
Received: 6 November 2019 / Revised: 26 November 2019 / Accepted: 29 November 2019 / Published: 2 December 2019
(This article belongs to the Section Polymer Processing and Performance)
Reactive extrusion and magnesium (II) N-heterocyclic carbene catalyst are successfully employed in continuous polylactide synthesis. The possibility of using six-membered N-heterocyclic carbene adducts to act as efficient catalysts towards the sustainable synthesis of poly(l-lactide) through ring-opening polymerization of l-lactide (LA) is first investigated in bulk batch reactions. Under optimized solvent-free conditions, polylactide (PLA) of moderate to high molecular weights and excellent optical activities are successfully achieved. These promising results are further applied in the continuous production of PLA in an extruder. View Full-Text
Keywords: ring-opening polymerization; poly(lactide); reactive extrusion; carbene catalyst ring-opening polymerization; poly(lactide); reactive extrusion; carbene catalyst
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MDPI and ACS Style

Mincheva, R.; Narayana Murthy Chilla, S.; Todd, R.; Guillerm, B.; De Winter, J.; Gerbaux, P.; Coulembier, O.; Dubois, P.; Raquez, J.-M. Reactive Extrusion and Magnesium (II) N-Heterocyclic Carbene Catalyst in Continuous PLA Production. Polymers 2019, 11, 1987.

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