A study on phenoxy-resin esters of cinnamylideneacetic acid and its derivatives |
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| Authors: | Tsuguo Yamaoka Koji Ueno Takahiro Tsunoda Kazuo Torige |
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| Affiliation: | 1. Faculty of Engineering, Chiba University, Chiba, Japan 280;2. Central Research Laboratory, Mitsubishi Chemical Industries Company, 1000, Kamoshida, Midori-ku, Yokohama, Japan 227 |
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| Abstract: | Photocrosslinkable polymers were prepared from phenoxy resin which was photoactivated by esterifying cinnamylideneacetic acid, α-cyanocinnamylideneacetic acid or cinnamylidenepyruvic acid. Relative sensitivities and spectral sensitivities of these polymers were determined by comparing with the phenoxy resin ester of cinnamic acid. It was found that the polymer which was photo-activated with cinnamylidenepyruvic acid had the highest photosensitivity and its spectral sensitivity extended up to 500 nm without the aid of any additional sensitizing dye. The mechanism of the photocrosslinking of these polymers was also considered. |
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