Summary
A variety of primary and tertiary amino-telechelic polyisobutylenes have been synthesized quantitatively by various routes from alcohol-telechelic polyisobutylene. Thus the syntheses of α,ω-di(amino)-, α,ω-di-(N,N′-dimethylamino)-, and α,ω-di(N-phthalimido)polyisobutylenes have been achieved from α,ω-di(hydroxy)polyisobutylene with and without chain enlargement. Three different methods were used: an improved Gabriel synthesis, the reaction of ditosylester of α,ω-di(hydroxy)polyisobutylene with the potassium salt of unsubstituted and disubstituted ethanolamine, and the reduction of α,ω-di(cyanoethanol)polyisobutylene with LiAlH4 at room temperature. Analysis and characterization were done by gel permeation chromatography, IR and 1H-NMR spectroscopy.
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Percec, V., Guhaniyogi, S.C. & Kennedy, J.P. New telechelic polymers and sequential copolymers by polyfunctional initiator-transfer agents (inifers). Polymer Bulletin 9, 27–32 (1983). https://doi.org/10.1007/BF00275564
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DOI: https://doi.org/10.1007/BF00275564