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Volume 202, 2017
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New bio-based monomers: tuneable polyester properties using branched diols from biomass

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Abstract

A family of monomers, including 2,5-hexandiol, 2,7-octandiol, 2,5-furandicarboxylic acid (FDCA), terephthalic acid (TA), and branched-chain adipic and pimelic acid derivatives, all find a common derivation in the biomass-derived platform molecule 5-(chloromethyl)furfural (CMF). The diol monomers, previously little known to polymer chemistry, have been combined with FDCA and TA derivatives to produce a range of novel polyesters. It is shown that the use of secondary diols leads to polymers with higher glass transition temperatures (Tg) than those prepared from their primary diol equivalents. Two methods of polymerisation were investigated, the first employing activation of the aromatic diacids via the corresponding diacid chlorides and the second using a transesterification procedure. Longer chain diols were found to be more reactive than the shorter chain alternatives, generally giving rise to higher molecular weight polymers, an effect shown to be most pronounced when using the transesterification route. Finally, novel diesters with high degrees of branching in their hydrocarbon chains are introduced as potential monomers for possible low surface energy materials applications.

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Article information


Submitted
06 Feb 2017
Accepted
07 Mar 2017
First published
03 Jul 2017

This article is Open Access

Faraday Discuss., 2017,202, 61-77
Article type
Paper

New bio-based monomers: tuneable polyester properties using branched diols from biomass

S. P. Arnaud, L. Wu, M. Wong Chang, J. W. Comerford, T. J. Farmer, M. Schmid, F. Chang, Z. Li and M. Mascal, Faraday Discuss., 2017, 202, 61
DOI: 10.1039/C7FD00057J

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