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A Convenient Method for Preparation of Amphiphilic Monomethoxypoly (Ethylene Glycol)–Polystyrene Diblock Copolymer by NMRP Technique

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Abstract

Amphiphilic block copolymers are macromolecular compounds of great importance from both fundamental scientific and many technological point of views for a large variety of applications. Amphiphilic diblock copolymer containing segments of monomethoxypoly(ethylene glycol) and polystyrene (MPEG-b-PS) was synthesised by a convenient method for preparation of macroinitiator MPEG-TEMPO for ‘living’ free radical polymerization (NMRP technique). Initially, derivative of MPEG with chlorine function has been prepared in an one-step reaction with thionyl chloride. 1-hydroxy-2,2,6,6-tetramethyl-piperidine (TEMPO-OH) obtained by reduction of 2,2,6,6-tetramethyl-piperidinyl-1-oxy (TEMPO) with sodium ascorbate was coupled with chlorinated MPEG to yield the macroinitiator MPEG terminated with a TEMPO unit (MPEG-TEMPO), which was further used to prepare the diblock copolymer MPEG-b-PS of styrene. The product was purified and identified by 1H NMR, GPC and, FT-IR.

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Authors and Affiliations

  1. Lab. of Polymer, Faculty of Chemistry, University of Tabriz, Tabriz, Iran

    Parisa Shoaeifar, Mojtaba Abbasian & Ali Akbar Entezami

Authors
  1. Parisa Shoaeifar
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  2. Mojtaba Abbasian
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  3. Ali Akbar Entezami
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Correspondence to Ali Akbar Entezami.

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Shoaeifar, P., Abbasian, M. & Entezami, A.A. A Convenient Method for Preparation of Amphiphilic Monomethoxypoly (Ethylene Glycol)–Polystyrene Diblock Copolymer by NMRP Technique. J Polym Res 14, 45–52 (2007). https://doi.org/10.1007/s10965-006-9079-1

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  • DOI: https://doi.org/10.1007/s10965-006-9079-1

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