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Synthesis of H-Shaped Complex Macromolecular Structures by Combination of Atom Transfer Radical Polymerization, Photoinduced Radical Coupling, Ring-Opening Polymerization, and Iniferter Processes

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Date
2013-11-01
Author
SANGERMANO, Marco
Temel, BİNNUR
AMICI, Julia
Yağcı, Yusuf
Advisor
Type
Article
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Abstract
Three controlled/living polymerization processes, namely atom transfer radical polymerization (ATRP), ring-opening polymerization (ROP) and iniferter polymerization, and photoinduced radical coupling reaction were combined for the preparation of ABCBD-type H-shaped complex copolymer. First, -benzophenone functional polystyrene (BP-PS) and poly(methyl methacrylate) (BP-PMMA) were prepared independently by ATRP. The resulting polymers were irradiated to form ketyl radicals by hydrogen abstraction of the excited benzophenone moieties present at each chain end. Coupling of these radicals resulted in the formation of polystyrene-b-poly(methyl methacrylate) (PS-b-PMMA) with benzpinacole structure at the junction point possessing both hydroxyl and iniferter functionalities. ROP of epsilon-caprolactone (CL) by using PS-b-PMMA as bifunctional initiator, in the presence of stannous octoate yielded the corresponding tetrablock copolymer, PCL-PS-PMMA-PCL. Finally, the polymerization of tert-butyl acrylate (tBA) via iniferter process gave the targeted H-shaped block copolymer. (c) 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2013, 51, 4601-4607
Subject
Temel B., AMICI J., SANGERMANO M., Yağcı Y., -Synthesis of H-Shaped Complex Macromolecular Structures by Combination of Atom Transfer Radical Polymerization, Photoinduced Radical Coupling, Ring-Opening Polymerization, and Iniferter Processes-, JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, cilt.51, ss.4601-4607, 2013
URI
https://hdl.handle.net/20.500.12645/7945
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BEZMIALEM VAKIF UNIVERSITY

About us |Policies | Library | Contact us | Send Feedback | Sitemap | Admin

Bezmialem Vakıf Üniversitesi, Adnan Menderes Bulvarı Vatan Caddesi 34093 Fatih, İstanbul / TURKEY
Copyright © Bezmialem Vakıf Üniversitesi

Creative Commons Lisansı
Bezmialem Institutional Repository, Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.

OpenAccess@BVU

Support by  UNIREPOS