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BF3OEt2-coinitiated cationic polymerization of cyclopentadiene in the presence of water at room temperature

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Abstract

The cationic polymerization of cyclopentadiene (CPD) with 1-(4-methoxyphenyl)ethanol (1)/BF3OEt2 initiating system in CH2Cl2:CH3CN 4:1 (v/v) mixture at room temperature and in the presence of water ([H2O]/[BF3OEt2] up to 8) is reported. The number-average molecular weights of obtained polymers increased in direct proportion to monomer conversion or initial monomer concentration (M n ≤ 4,000 g mol−1) in agreement with calculated values, and were inversely proportional to initiator concentration. Polymer MWDs were relatively narrow (M w/M n = 1.4–1.7) up to 60% of monomer conversion. It was also shown that regioselectivity of CPD polymerization with 1/BF3OEt2 initiating system did not depend significantly on water, monomer, or initiator concentration (1,4-structures content was nearly 60% in all cases).

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Acknowledgments

This work was supported by Belarusian Foundation for Fundamental Research. The authors thank Dr. Francois Ganachaud and Dr. Irina Vasilenko for their useful comments on the article.

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  1. Research Institute for Physical Chemical Problems of the Belarusian State University, 14 Leningradskaya st., 220030, Minsk, Belarus

    Alexei V. Radchenko, Sergei V. Kostjuk & Ludmila V. Gaponik

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  1. Alexei V. Radchenko
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  2. Sergei V. Kostjuk
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  3. Ludmila V. Gaponik
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Correspondence to Sergei V. Kostjuk.

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Radchenko, A.V., Kostjuk, S.V. & Gaponik, L.V. BF3OEt2-coinitiated cationic polymerization of cyclopentadiene in the presence of water at room temperature. Polym. Bull. 67, 1413–1424 (2011). https://doi.org/10.1007/s00289-011-0455-6

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  • DOI: https://doi.org/10.1007/s00289-011-0455-6

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