Patent ID: 8637623
Filing Date: 2014-01-28
Classification: C07D,C08F,G03F

Abstract:
1. A polymeric compound comprising at least a monomeric unit represented by following Formula (I): wherein R R “A” represents an alkylene group having 1 to 6 carbon atoms, an oxygen atom, a sulfur atom, or nonbonding; “m” is the number of R Xs each independently represent an electron-withdrawing substituent selected from the group consisting of: fluorine-containing group, acyloxy group, cyano group, nitro group, sulfo group, alkanesulfonyl group, alkanesulfinyl group and alkoxysulfonyl group, and wherein at least one X is bound directly to the alpha position of the carbonyl group of the lactone ring; “n” is the number of Xs bound to the ring and denotes an integer of 1 to 9; and Y represents a methylene or a group composed of an alkylene group having 1 to 3 carbon atoms and an alkylene group having 1 or 2 carbon atoms bound with each other through an ester bond, wherein the —COO—Y—COO— group bound to the polymer chain may have either endo or exo configuration.