Abstract
Polymerization of 1,3-dioxolane (1) with terephthaloyl ditriflate as initiator in dichloromethane at −40°C produces poly(1)s with molecular weights given by {([Monomer]0 - [Monomer]e)/([Initiator])} ([Monomer]e = monomer conc. at equilibrium). Termination with triethylamine leads to poly(1)s with two quaternized a-aminoether functions as end groups. These end groups react with carboxylate ions in apolar solvent to form the corresponding hemiacetal esters. This reaction sequence allows to produce a variety of well defined poly(1) telechelics.
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