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Synthesis of block copolymers by selective H-abstraction and radical coupling reactions using benzophenone/benzhydrol photoinitiating system

Author
Yağcı, Yusuf
Taskin, Omer Suat
Tasdelen, Mehmet Atilla
Temel, Binnur Aydogan
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Abstract
Block copolymers were synthesized by a simple photochemical strategy based on selective H-abstraction and radical coupling reactions of ketyl macroradicals. Benzophenone (BP) and benzhydrol (Bzh) end functional polymers were synthesized by atom transfer radical polymerization (ATRP) using functional initiators. Subsequently, the resulting end functional polymers were mixed in 1:1 M ratio and irradiated to form ketyl radicals by hydrogen abstraction of the excited BP moieties from Bzh moieties. The influence of various experimental parameters on the polymerization such as type of polymers and solvents were examined. H-1 NMR, UV and GPC measurements clearly pointed out an efficient photoinduced end coupling reaction between ketyl radicals. (C) 2014 Elsevier Ltd. All rights reserved.
URI
http://hdl.handle.net/20.500.12627/121619
https://doi.org/10.1016/j.eurpolymj.2014.07.007
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Creative Commons Lisansı

İstanbul Üniversitesi Akademik Arşiv Sistemi (ilgili içerikte aksi belirtilmediği sürece) Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.

DSpace software copyright © 2002-2016  DuraSpace
Contact Us | Send Feedback
Theme by 
Atmire NV