The basic process comprises adding an organic compound containing amine, hydroxyl or sulfhydryl functional groups to a homobifunctional carboxylic cross linking agent in the presence of {HEAD ~ a hydroxylimide catalyst} to form {TAIL ~ an adduct} with a free carboxyl moiety 
to form
The basic process comprises adding an organic compound containing amine , hydroxyl or sulfhydryl functional groups to a homobifunctional carboxylic cross linking agent in the presence of { HEAD ~ a hydroxylimide catalyst } to form { TAIL ~ an adduct } with a free carboxyl moiety
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH