Year: 2025
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide Furan diepoxy (FDE), a diglycidyl amine with a pendant furan, was synthesized using a 1:10 furfuryl amine/epichlorohydrin ratio. Aliquots were taken during the synthesis and characterized using gel permeation chromatography (GPC) and Fourier transform infrared spectroscopy (FTIR). Two significant products, FDE and α-chlorohydrin FDE, formed simultaneously with increasing reaction time. Eventually, α-chlorohydrin FDE became the main product. Purified FDE and α-chlorohydrin FDE were cured with an amine to investigate the network formation using differential scanning calorimetry (DSC), FTIR, and 1 H and 13 C{ 1 H} nuclear magnetic resonance (NMR). Dynamic mechanical analysis (DMA) was conducted to measure the thermomechanical properties and create a structure–property relationship. Compared to purified FDE, which had a storage modulus ( E ′) at 25 °C of 2.9 GPa and a T g of 80 °C, α-chlorohydrin FDE had increased E ′ at 25 °C of 4.4 GPa and T g of 129 °C. The improved properties resulted from α-chlorohydrin FDE forming new cross-links via ring-opening of the furan.
Source: ACS Omega
Authors: Amy Honnig Bassett, Emre Kinaci, Giuseppe R. Palmese
Institution: Rowan University
Language: English
Topic: Epoxy Resin Curing Processes
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,935
OpenAlex ID: W4416673526