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New telechelic polymers and sequential copolymers by polyfunctional initiator-transfer agents (INIFERS)

23. Interactions between alcohol-telechelic linear and three-arm star polyisobutylenes and pyromellitic dianhydride

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Summary

Linear and three-arm star hydroxy-telechelic polyisobutylenes have been quantitatively esterified with pyromellitic dianhydide in the presence of 4-N,N′-dimethylaminopyridine in tetrahydrofuran at room temperature. Chain extension occurred only under reflux conditions (67°C). In the presence of chromium acetyl acetonate catalyst at 140°C insoluble networks were obtained within minutes.

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Author notes

  1. V. Percec

    Present address: Department of Macromolecular Science, Case Western Reserve University, 44106, Cleveland, Ohio

Authors and Affiliations

  1. Institute of Polymer Science, The University of Akron, 44325, Akron, OH, USA

    V. Percec, Suhas C. Guhaniyogi & J. P. Kennedy

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  1. V. Percec
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  2. Suhas C. Guhaniyogi
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  3. J. P. Kennedy
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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 8, 319–324 (1982). https://doi.org/10.1007/BF00264920

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  • DOI: https://doi.org/10.1007/BF00264920

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