Journal of Applied Polymer Science · 1999 · 22 citations · 18 references
Natural SciencesChemistryMaterials ScienceOptical MaterialsPolymer ChemistryPolymer MaterialsNonlinear Optical MaterialsNonlinear OpticsOptical PolymersPolymer CharacterizationPolymer NetworksPolymer StabilityCationic PolymerizationControlled Radical PolymerizationCross-linking PolymersCrosslinked PolymersInterpenetrating Network MaterialsInterpenetrating Polymer NetworksNonlinear Optical PolymersPhotopolymer Materials
Two photocrosslinkable NLO polymers of poly(glycidyl methacrylate) substituted with 4-nitro-4′-hydroxyl stilbene (PGMAS) and acryloyl-functionalized epoxy-based polymer (PENAA) carrying 4-nitroaniline moieties were synthesized and characterized. By using the sulfonium salt cationic photoinitiator BDS · 2PF6 which can induce cationic or/and radical polymerization, the photocrosslinking of PGMAS and the interpenetrating polymer network (IPN) formed by the photocrosslinking of PGMAS and PENAA simultaneously were reported. The poled and photocrosslinked polymer films and IPN films exhibit relatively stable second-order nonlinear optical activity. The influence of stilbene isomerization in PGMAS films with different crosslink densities on the SHG stability was also investigated. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 71: 1081–1087, 1999
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