A process 1 for the preparation of {TAIL ~ a substituted urethane}, in which process a compound or {HEAD ~ polymer} of the formula: ##STR85## derived from a primary alcohol MOH is reacted with a compound comprising at least one amine group and at least one substituent selected from alcohol, thiol and carboxylic acid groups to produce the substituted urethane 
A process 1 for the preparation of { TAIL ~ a substituted urethane } , in which process a compound or { HEAD ~ polymer } of the formula : # # STR85 # # derived from a primary alcohol MOH is reacted with a compound comprising at least one amine group and at least one substituent selected from alcohol , thiol and carboxylic acid groups to produce the substituted urethane
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH