Studies on the Preparation of Telechelic Polymers by Atom Transfer Radical Polymerization and Cross Coupling Processes

Yasemin Yüksel Durmaz 1 , Ioan Cianga 1 , 2  and Yusuf Yagci 1
  • 1 Istanbul Technical University, Department of Chemistry, Maslak 34469, Istanbul, Turkey
  • 2 “Petru Poni” Institute of Macromolecular Chemistry, Iasi, Romania

Abstract

Combination of Atom Transfer Radical Polymerization (ATRP) and Atom Transfer Radical Cross Coupling (ATRCC) processes as a route to prepare telechelic polymers was described. The concept is based on the activation of the dormant species at the chain ends of polystyrene (Br-PS-Br or PS-Br) prepared by ATRP and functional ATRP initiator (F-R-Br) in the absence of a monomer. Depending on the type of polystyrene used in the system, cross coupling of these active species gives α,ω-polystyrene and ω-polystyrene telechelics. Detailed investigations using a model system revealed that the efficiency of functionalization was not very high because of the self-coupling of the species derived from the polymer and functional initiator. However, the highest functionalization (Xf=0.85) was achieved by introducing a small amount of styrene in the ATRCC.

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The aim of e-Polymers is to publish original research articles, reviews, and feature articles related to pure and applied polymer science.  This includes synthetic methodologies, characterization and processing techniques for polymer materials. Reports on interdisciplinary polymer science and on applications of polymers in all areas are especially welcome.

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