Polymers, living carbanionic ethylene oxide termination

Living polymers usually require special reagents to achieve termination. Any electrophilic reagent that reacts with the carbanion active center and also allows preparation of polymers with desired terminal functionalities can be used for this purpose.168,174,181 Hydrogen-terminated polymers can be produced by proton donors, whereas carbon dioxide results in a carboxylate end group. Terminal alcohol functionalities can be formed through reaction with ethylene oxide and carbonyl compounds. [Pg.742]

In contrast to many other functionalization reactions, termination of living carbanionic polymers with ethylene oxide (Eq. 19) is relatively... [Pg.329]