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Polymers 2018, 10(5), 529; https://doi.org/10.3390/polym10050529

FA Polymerization Disruption by Protic Polar Solvents

Institut de Chimie de Nice, Université Nice-Sophia Antipolis, Université Côte d’Azur, UMR CNRS 7272, Nice CEDEX 06108, France
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Received: 20 April 2018 / Revised: 7 May 2018 / Accepted: 8 May 2018 / Published: 15 May 2018
(This article belongs to the Special Issue Polymers from Renewable Resources)
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Abstract

Furfuryl alcohol (FA) is a biobased monomer derived from lignocellulosic biomass. The present work describes its polymerization in the presence of protic polar solvents, i.e., water or isopropyl alcohol (IPA), using maleic anhydride (MA) as an acidic initiator. The polymerization was followed from the liquid to the rubbery state by combining DSC and DMA data. In the liquid state, IPA disrupts the expected reactions during the FA polymerization due to a stabilization of the furfuryl carbenium center. This causes the initiation of the polymerization at a higher temperature, which is also reflected by a higher activation energy. In the water system, the MA opening allows the reaction to start at a lower temperature. A higher pre-exponential factor value is obtained in that case. The DMA study of the final branching reaction occurring in the rubbery state has highlighted a continuous increase of elastic modulus until 290 °C. This increasing tendency of modulus was exploited to obtain activation energy dependences (Eα) of FA polymerization in the rubbery state. View Full-Text
Keywords: renewable resources; lignocellulosic biomass; polymerization; reaction mechanisms; furfuryl alcohol renewable resources; lignocellulosic biomass; polymerization; reaction mechanisms; furfuryl alcohol
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Falco, G.; Guigo, N.; Vincent, L.; Sbirrazzuoli, N. FA Polymerization Disruption by Protic Polar Solvents. Polymers 2018, 10, 529.

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