Functionalization and applications of telechelic oligopropylenes. II. Introduction of succinic anhydride units and preparation of multiblock copolyolefins by polycondensation

Abstract

The first preparation of telechelic oligopropylene with succinic anhydride units (iPP–MA) was achieved by the ene reaction of α,ω-bis(2-propenyl)oligopropylene (iPP–TVD) with maleic anhydride. A degradable polypropylene [isotactic polypropylene-block-isotactic polypropylene (iPP-b-iPP)] was prepared with iPP–MA and dihydroxyoligopropylene (iPP–OH). iPP-b-iPP could be readily reverted to the starting oligomers by alcoholysis in supercritical methanol.