B-stage characterization of o-cresol novolac epoxy resin system using raman spectroscopy and matrix-assisted laser desorption/ionization mass spectrometry
2000; Wiley; Volume: 76; Issue: 13 Linguagem: Inglês
10.1002/(sici)1097-4628(20000624)76
ISSN1097-4628
Autores Tópico(s)Polymer crystallization and properties
ResumoThe B-stage of the o-cresol novolac epoxy resin–phenol novolac hardener–triphenylphosphine (TPP) catalyst system was characterized using Raman spectroscopy and matrix-assisted laser desorption/ionization (MALDI) mass spectrometry. The consistent decreasing intensities of characteristic epoxy resin peaks in MALDI mass and Raman spectra according to the melt mixing time were observed, which is due to the formation of the epoxy–phenol–TPP complex and the propagation reaction between them and with another epoxy resin. Our microscopic analysis method will provide a useful tool to control the optimum condition of the melt mixing process in the B-stage. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 76: 1940–1946, 2000
Referência(s)