Journal
CHEMISTRY OF MATERIALS
Volume 15, Issue 21, Pages 4075-4081Publisher
AMER CHEMICAL SOC
DOI: 10.1021/cm0302734
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Photo-cross-linkable polymers having degradable properties on heating were described. Copolymers of esters or salts of p-styrenesulfonic acid with a novel monomer having both an epoxy moiety and a tertiary ester moiety were synthesized and characterized. Polymer films containing a photoacid generator became insoluble in organic solvents on UV irradiation. The insoluble fraction of the irradiated films was increased by post-exposure-baking at relatively low temperatures (40-100 degreesC). When the cross-linked polymer films were baked at 120-200 degreesC, they became soluble in water. The effective bake temperature was dependent on the polymer structure. Thermal degradation of the cross-linked polymers was studied by TGA analysis and in situ FT-IR spectroscopy.
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