Volume 28, Issue 12 pp. 1804-1812
Research article

Synthesis of inositol-based star polymers through low ppm ATRP methods

Paweł Chmielarz

Corresponding Author

Paweł Chmielarz

Department of Physical Chemistry, Faculty of Chemistry, Rzeszow University of Technology, Al. Powstańców Warszawy 6, 35-959 Rzeszow, Poland

Correspondence to: Paweł Chmielarz, Department of Physical Chemistry, Faculty of Chemistry, Rzeszow University of Technology, Al. Powstańców Warszawy 6, 35-959 Rzeszow, Poland

E-mail: [email protected]

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First published: 15 May 2017
Citations: 32
Notes: The author declares no competing financial interest.

Abstract

The vitamin B8-based macroinitiator with six 2-bromoisobutyric initiating sites was prepared for the first time by the transesterification reaction of meso-inositol with 2-bromoisobutyryl bromide. A series of six-armed (co)polymers, containing hydrophilic poly(di(ethylene glycol) methyl ether methacrylate) and amphiphilic poly(di(ethylene glycol) methyl ether methacrylate)-block-poly(methyl methacrylate) as the arms and meso-inositol as the core, were obtained by low ppm atom transfer radical polymerization (ATRP) methods, utilizing 30 ppm of catalyst complex. Under Fe0-mediated supplemental activators and reducing agents ATRP, Cu0-mediated supplemental activators and reducing agents ATRP, Ag0-mediated activators regenerated by electron transfer ATRP, and simplified electrochemically mediated ATRP conditions, polymerization proceeded on to high conversion while maintaining low dispersity (Đ = 1.05–1.16) giving well-defined six-armed star (co)polymers. 1H NMR spectral results confirm the formation of new star-shaped block (co)polymers. The absence of intermolecular coupling reactions during synthesis was confirmed by gel permeation chromatography analyses of the side chains of received star (co)polymers. These vitamin B8-based star (co)polymers may find biomedical applications as thermo-sensitive drug delivery systems, biosensors, and tissue engineering solutions. Copyright © 2017 John Wiley & Sons, Ltd.

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