Triflate esters as in-situ generated initiating system for carbocationic polymerization of vinyl ethers, isoprene, myrcene and ocimene

Abstract : Thermo-induced carbocationic polymerization of isobutyl vinyl ether (IBVE), isoprene, myrcene and ocimene is reported using triflate esters as in-situ generated single-molecule initiating system. 3-Methyl-2-butenyl triflate is used for IBVE polymerization at room temperature resulting in polymers with Mn ∼ 9500 g mol−1 and Mw/Mn ∼ 2. Triflate-ester initiated polymerization of isoprene leads to oligomers with branched and ultimately cross-linked structures. Myrcene cationic polymerization, in CH2Cl2 or cyclohexane, using 2-propenyl triflate and 1-(4-metoxyphenyl)ethyl triflate as initiators yields low molar mass oligomyrcenes with loss of olefinic protons. Ocimene cationic polymerization is reported for the first time.
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https://hal.archives-ouvertes.fr/hal-01473872
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Submitted on : Wednesday, February 22, 2017 - 11:25:14 AM
Last modification on : Thursday, January 11, 2018 - 6:28:09 AM

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Alexei V. Radchenko, Hassen Bouchekif, Frédéric Peruch. Triflate esters as in-situ generated initiating system for carbocationic polymerization of vinyl ethers, isoprene, myrcene and ocimene. European Polymer Journal, Elsevier, 2017, 89, pp.34-41. ⟨10.1016/j.eurpolymj.2017.02.001⟩. ⟨hal-01473872⟩

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