Chemical and Biomolecular Engineering Faculty Research

Title

Star-branched and Hyperbranched Polyisobutylenes

Document Type

Article

Publication Date

7-1998

Abstract

The synthesis of branched (star-branched and hyperbranched) polyisobutylenes (PIBs) is described in this paper. Multiarm-star and brush-like structures were prepared by using a tert -hydroxy functionalized polystyrene macroinitiator (4-(l-hydroxy-l-methylethyl)styrene-co-styrene (HMESt-co-St). These polymers were characterized by SEC-light scattering. The first successful synthesis of gel-free high molecular weight hyperbranched PIBs was achieved by using HMESt as an inimer (initiator-monomer) in conjunction of living isobutylene (IB) polymerization. Initial characterization of the structure of this polymer included SEC analysis and selective destruction of the HMESt-junctions.

Publication Title

Macromolecular Symposia

Volume

132

Issue

1

First Page

117

Last Page

126