New Alkoxyamines for Controlled Radical Polymerisations

Authors: Thiessen, Wladimir¹; Wolff, Thomas²

Source: Designed Monomers & Polymers, Volume 11, Number 3, 2008 , pp. 297-307(11)

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Abstract:

A variety of different alkoxyamine structures, which led to a new class of nitroxides with a quarternary phosphonic acid (and its ethylesther) group, was investigated. These compounds were able to control the polymerisation of styrene at temperatures as low as 70°C. The new alkoxyamines were also tested in the polymerisation of 1-vinylimidazole. Furthermore, it was found that the free phosphonic acid can control the polymerisation of styrene assisted by microwaves. This is not possible with any other alkoxyamine. The obtained kinetic data of the microwave-assisted NMRP prove that the polymerisation proceeds in a controlled fashion and faster then the thermal analogue.

Keywords: NMRP; ALKOXYAMINES; NITROXIDES; SYNTHESIS; MICROWAVE; POLYMERISATION; POLYVINYLIMIDAZOLE; PHOSPHONATES

Document Type: Regular paper

DOI: http://dx.doi.org/10.1163/156855508X316890

Affiliations: 1: Physikalische Chemie, Technische Universität Dresden, D-01062 Dresden, Germany 2: Physikalische Chemie, Technische Universität Dresden, D-01062 Dresden, Germany;, Email: thomas.wolff@chemie.tu-dresden.de

Publication date: 2008-06-01