Polymers of the formula
##STR1##
wherein x is 0 or 1, R1-4 are alkyl, aryl, arylalkyl, or alkylaryl
groups, X1-4 are halogens, a, b, c, and d
are 0-4, UE is an unsaturated ester group, e, f, g, and h are 0-4, at least one
of e, f, g, and h is 1 in at least some monomers, SE is a saturated ester
group, i, j, k, and m are 0-4, at least one of i, j, k, and m is 1 in at
least some monomers, a+e+i4, b+f+j4, c+g+k4,
d+h+m4, RX represents the total number of haloalkyl groups in the
polymer, the ratio of UE groups to SE groups to RX groups in the polymer is
::
wherein is from about 1 to about 99.99, wherein
is from about 0.01 to about 99, wherein is from 0 to about 50, and
wherein ++=100.
