Curing of styrene-free unsaturated polyester alkyd: synthesis, characterization and simulation

摘要

Experimental and simulation studies of the crosslinking process of styrene-free unsaturated polyester (UP) alkyd chains are presented. The thermal and mechanical properties of the crosslinked UP alkyd are studied as a function of the peroxide concentration. The characterized and simulated thermoset matrix properties are compared. Simulation of the crosslinking reaction is used to improve the understanding of the process and to define the species involved in it. The main experimental characterization tools used were differential scanning calorimetry and dynamic mechanical analysis. The main simulation tools used were a Monte Carlo procedure for the crosslinking process and a density functional theory-based quantum code for the scission process. Good agreement between the experimental and simulation results was achieved.