Disclosed are polyesters and polycarbonates of the formulae ##STR1## wherein X is an anion with weak nucleophilicity, A, B, and C represent the number of repeat monomer units, wherein C may be zero, R is selected from the group consisting of hydrocarbon groups and alkylene ether groups, and R is selected from {HEAD ~ the group} consisting of hydrogen, nitro, amide, halide, {TAIL ~ trimethylsilyl}, alkyl groups, and alkoxy groups 
consisting of
Disclosed are polyesters and polycarbonates of the formulae # # STR1 # # wherein X is an anion with weak nucleophilicity , A , B , and C represent the number of repeat monomer units , wherein C may be zero , R is selected from the group consisting of hydrocarbon groups and alkylene ether groups , and R is selected from { HEAD ~ the group } consisting of hydrogen , nitro , amide , halide , { TAIL ~ trimethylsilyl } , alkyl groups , and alkoxy groups
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