| Abstract: | A new group of photocrosslinkable polyesters formed by the Knoevenagel reaction is described. The approach permits preparation of photoesensitive polymers, where physical properties can be potentially varied through choice of the polyol and the dicarboxylic acid. The following compounds were prepared and studied: (1) products from a Knoevenagel reaction of poly(trimethylopropane azelate cyanoacetate) with benzaldehyde, furaldehyde, and 2-ethylbutyraldehyde and (2) products from a Knoevenagel reaction of poly(1,3-propyl malonate) with benzaldehyde, p-methoxybenzaldehyde, and 2-ethylbutyraldehyde. Conventional unsaturated polyesters such as poly(1,3-propyl fumarate) and poly(1,3-propyl maleate) were prepared and used for comparison. |
