초록

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Abstract ▼ AI-Helper

The cinnamoyl esters of polyresorcinol-formaldehyde glycidyl ether (RGEFC) with photosensitive functional group were prepared. Photosensitivity of RGEFC were investigated by the change of solubility before and after exposure to light. Various samples coated on glass plates were exposed to light unde...

The cinnamoyl esters of polyresorcinol-formaldehyde glycidyl ether (RGEFC) with photosensitive functional group were prepared. Photosensitivity of RGEFC were investigated by the change of solubility before and after exposure to light. Various samples coated on glass plates were exposed to light under various conditions and steeped in the same solvent as used for coating, and then the yield of residual film was calculated. The yield of the residual film which was closely related to the sensitivity of the film, was affected by the degree of polymerization of the backbone resin, sensitizers and their concentration. The sensitivity was depended upon the degree of polymerization. Most effective sensititizer for RGEFC among the sensitizers used was 2,6-dichloro-4-nitroaniline.