A process for producing a polymer compound having a double bond in a side chain,
wherein a functional group represented by the following formula (1) is subjected
to an elimination reaction to form the polymer compound which includes another
functional group having the double bond in the side chain thereof represented by
the following formula (2):
##STR1##
wherein, in the formulae, A1 represents an oxygen atom, a sulfur
atom or -N(R4)-; R1, R2, R3 and R4
each independently represent a hydrogen atom or a monovalent organic group;
and X1 and Z1 each represent a group that is removable by
the elimination reaction.
