Disclosed is a composition which comprises a polymer containing at least
some monomer repeat units with photosensitivity-imparting substituents which enable
crosslinking or chain extension of the polymer upon exposure to actinic radiation,
said polymer being of the formula
##STR1##
wherein x is an integer of 0 or 1, A is one of several specified groups,
such as
##STR2##
B is one of several specified groups, such as
##STR3##
or mixtures thereof, and n is an integer representing the number of repeating
monomer units, wherein said photosensitivity-imparting substituents are allyl ether
groups, epoxy groups, or mixtures thereof. Also disclosed are a process for preparing
a thermal ink jet printhead containing the aforementioned polymers and processes
for preparing the aforementioned polymers.
