Synthesis of Unsaturated Polyester Resins from Various Bio-Derived Platform Molecules

International Journal of Molecular Sciences

Thomas J. Farmer¹  Rachael L. Castle¹  James H. Clark¹  Duncan J. Macquarrie¹ 

关键词: polymerisation;    green chemistry;    michael addition;    polymers;    renewable resources;    transesterification;    bio-derived platform molecules;    itaconates;   

DOI  :  10.3390/ijms160714912

来源: mdpi

【 摘 要 】

Utilisation of bio-derived platform molecules in polymer synthesis has advantages which are, broadly, twofold; to digress from crude oil dependence of the polymer industry and secondly to reduce the environmental impact of the polymer synthesis through the inherent functionality of the bio-derived platform molecules. Bulk polymerisation of bio-derived unsaturated di-acids has been employed to produce unsaturated polyester (UPEs) which have been analysed by GPC, TGA, DSC and NMR spectroscopy, advancing on the analysis previously reported. UPEs from the diesters of itaconic, succinic, and fumaric acids were successfully synthesised with various diols and polyols to afford resins of M_N 480–477,000 and T_g of −30.1 to −16.6 °C with solubilities differing based on starting monomers. This range of properties allows for many applications and importantly due to the surviving Michael acceptor moieties, solubility and cross-linking can be specifically tailored, post polymerisation, to the desired function. An improved synthesis of itaconate and succinate co-polymers, via the initial formation of an itaconate bis-diol, is also demonstrated for the first time, resulting in significantly improved itaconate incorporation.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.