Synthesis and Characterization ofα,ω-Telechelic Polymers by Atom Transfer Radical Polymerization and Coupling Processes

2003 ◽  
Vol 204 (14) ◽  
pp. 1771-1783 ◽  
Author(s):  
Seda Yurteri ◽  
Ioan Cianga ◽  
Yusuf Yagci
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Synthesis And Characterization ◽  
Atom Transfer ◽  
Telechelic Polymers ◽  
Coupling Processes

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

e-Polymers ◽  
2006 ◽  
Vol 6 (1) ◽  
Author(s):  
Yasemin Yüksel Durmaz ◽  
Ioan Cianga ◽  
Yusuf Yagci
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Cross Coupling ◽  
Active Species ◽  
Model System ◽  
The Self ◽  
Atom Transfer ◽  
Telechelic Polymers ◽  
Coupling Processes ◽  
Very High

AbstractCombination 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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