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Chemical Papers

, Volume 71, Issue 1, pp 161–170 | Cite as

Synthesis of multiarm star block copolymers via simplified electrochemically mediated ATRP

  • Paweł ChmielarzEmail author
Original Paper

Abstract

Star-shaped polymers were received using β-cyclodextrin (β-CD) as core, and methyl methacrylate (MMA) arms via a simplified electrochemically mediated ATRP (seATRP). To demonstrate the living nature of the seATRP, star multiblock copolymers were successfully prepared by chain extension of the ω-functional PMMA arms with a tert-butyl acrylate (tBA), and respectively, n-butyl acrylate (BA). Novelty of this work is that the β-CD-PMMA-b-PtBA-b-PBA multiarm star block copolymers were synthesized for the first time via seATRP procedure, utilizing 4 × 10−6 mol% of CuII complex. The results from 1H NMR spectral studies support the formation of 21-arm star (co)polymers. Furthermore, the GPC traces of the arms detached from synthesized star-like (co)polymers confirms the absence of star–star coupling reactions during seATRP. It was shown as an advantage over other ATRP methods–low catalyst concentrations and narrow molecular mass distributions, while maintaining well-defined composition.

Keywords

Polymer synthesis seATRP Multiarm cyclodextrin-based star copolymers 

Notes

Acknowledgements

Financial support from U-553/DS is acknowledged. NMR spectra were recorded in the Laboratory of Spectrometry, Faculty of Chemistry, Rzeszow University of Technology and were financed from DS budget.

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Copyright information

© Institute of Chemistry, Slovak Academy of Sciences 2016

Authors and Affiliations

  1. 1.Department of Physical Chemistry, Faculty of ChemistryRzeszów University of TechnologyRzeszówPoland

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