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Issue 18, 2017
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[HL2][P(1,2-O2C6Cl4)3] (L = THF, DMF): Brønsted acid initiators for the polymerization of n-butyl vinyl ether and p-methoxystyrene

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Abstract

The development of solid, weighable Brønsted acids featuring the hexacoordinated phosphorous(V) anion [TRISPHAT] are reported. H(DMF)2[1] and H(THF)2[1] {[1] = [P(1,2-O2C6Cl4)3]} were synthesized and fully characterized by 1H, 31P, 13C and 2D-NOESY NMR spectroscopy, X-ray crystallography, mass spectrometry and elemental analysis. Both, H(DMF)2[1] and H(THF)2[1] are found to be suitable initiators for the polymerization of n-butyl vinyl ether and p-methoxystyrene. Optimal polymerization results for these single-component initiators were generally obtained at −50 °C where high molecular weight polymers were isolated in high yield. 1H NMR spectroscopic analysis and dynamic light scattering of solutions of the isolated polymers provide evidence for a branched structure which presumably arises from chain transfer.

Graphical abstract: [HL2][P(1,2-O2C6Cl4)3] (L = THF, DMF): Brønsted acid initiators for the polymerization of n-butyl vinyl ether and p-methoxystyrene

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Publication details

The article was received on 21 Dec 2016, accepted on 30 Mar 2017 and first published on 12 Apr 2017


Article type: Paper
DOI: 10.1039/C6DT04820J
Citation: Dalton Trans., 2017,46, 5901-5910
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    [HL2][P(1,2-O2C6Cl4)3] (L = THF, DMF): Brønsted acid initiators for the polymerization of n-butyl vinyl ether and p-methoxystyrene

    K. Hazin, S. C. Serin, B. O. Patrick, M. B. Ezhova and D. P. Gates, Dalton Trans., 2017, 46, 5901
    DOI: 10.1039/C6DT04820J

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