One-pot synthesis of self-sensitizing photopolymer and its photochemical properties.

概要

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Photosensitive polymer with pendant photosensitive group and photosensitizing group (self-sensitizing photo-polymer) was prepared by radical copolymerization of 2-hydroxyethyl methacrylate with sensitizing monomers such as 4-nitrophenyl methacrylate or 4-nitro-l-naphthyl methacrylate by using 2, 2′-azobisisobutyronitrile in dimethylformamide and the subsequent condensation reaction of the copolymers with cinnamoyl chloride using pyridine as hydrochloride acceptor in the same reaction flask. The copolymers obtained in this method had high molecular weight. These copolymers indicated good solubility in usual solvents, and had excellent thermal stability. In addition, the copolymer containing 4-nitro-l-naphthyl methacrylate units showed excellent photo-chemical reactivity, photosensitivity and high resolving power. These results suggested that the synthesized copolymers had a bright prospect of applying to practical use.
公益社団法人高分子学会の論文