A Preliminary Study of Thermosets from Epoxy Resins Made using Low-Toxicity Furan-Based Diols.

Olena ShafranskaCatherine SuttonDeep KalitaPrakash KannaboinaSandip TiwariMukund P SibiDean C Webster
Published in: Macromolecular rapid communications (2024)
Glycidyl ethers were prepared from a series of furan-based diols and cured with a diamine to form thermosets. The furan diols had demonstrated lower toxicity than bisphenol-A in a prior study. The diglycidyl ethers showed improved thermal stability compared to the parent diols. Cured thermosets were prepared at elevated temperature using isophorone diamine (IPDA). Glass transition temperatures were in the range of 30-54 °C and depended on the structure of the furan diol. Coatings were prepared on steel substrates and showed very high hardness, good adhesion and a range of flexibility. Properties compared favorably with a control based on a bisphenol-A epoxy resin. The study demonstrated that epoxy resins based on furan diols, which have been shown to have lower toxicity than bisphenol-A, can form thermosets having properties comparable to a standard epoxy resin system and thus are viable as replacements for bisphenol-A epoxy resins. This article is protected by copyright. All rights reserved.