Interfacial Molecular Structure and Dynamics at Solid Surface Studied by Sum Frequency Generation Spectroscopy

Kinetics of the interfacial curing reaction for an epoxy–amine mixture

“…12,13 Thus, SFG signals can be generated only from places where the centrosymmetry is broken, or more generally, the interfaces. [14][15][16][17][18][19][20][21][22][23][24][25] This means that using SFG, the curing reaction between epoxy and amine compounds can be monitored at the interface with a depth region at the molecular level. The objective of this study was to examine the kinetics of the curing reaction between epoxy phenol novolac (EPN) and 4,4 0 -diaminodiphenyl sulfone (DDS) at a quartz interface using SFG spectroscopy in conjunction with a full atomistic molecular dynamics (MD) simulation.…”