Star polymers having a well-defined siloxane core and multiple polyisobutylene arms and a method for the synthesis thereof

摘要

The synthesis and characterization of novel multi-arm star polymers comprising polyisobutylene arms connected to a well-defined, siloxane core are described. The synthesis has been achieved by hydrosilating olefin-capped (e.g., allyl- or isopropenyl-terminated) polyisobutylene with siloxanes carrying a plurality of Si-H groups.