Abstract
A new photosensitive polymer with pendant cinnamic ester group was prepared from poly(vinylalcohol) bY graft ring opening alternating copolymerization with glycidyi cinnamate and phthalic anhydride in hexamethyl phosphoramide.The relative photo sensitivity of the obtained graft polymer containing 5-nitroacenaphthene as a sensitizer was ca. 22.4 times higher than that of KPR, and ca. 4 times higher than that of poly(vinyl cinnamate), which has the same degree of polymerization as the graft of polymer.
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