Synthesis of well-defined polystyrene macrophotoinitiators by atom-transfer radical polymerization

DEGIRMENCI, M; Cianga, I; Yagci, Yusuf

doi:10.1002/1521-3935(200207)203:10/11<1279::aid-macp1279>3.0.co;2-h

Synthesis of well-defined polystyrene macrophotoinitiators by atom-transfer radical polymerization

Atıf İçin Kopyala

DEGIRMENCI M., Cianga I., Yagci Y.

MACROMOLECULAR CHEMISTRY AND PHYSICS, cilt.203, ss.1279-1284, 2002 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 203
Basım Tarihi: 2002
Doi Numarası: 10.1002/1521-3935(200207)203:10/11<1279::aid-macp1279>3.0.co;2-h
Dergi Adı: MACROMOLECULAR CHEMISTRY AND PHYSICS
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.1279-1284
İstanbul Teknik Üniversitesi Adresli: Evet

Özet

New mono- and bifunctional atom-transfer radical polymerization (ATRP) initiators were synthesized by the condensation of 2-bromopropanoyl bromide with 2 hydroxy-2-methyl-1-phenyl propan-1-one (HMPP) and 2 hydroxy-1-[4-(2-hydroxyethoxy)phenyl]-2-methyl propan-1-one (HE-HMPP), respectively and characterized. The ATRP of styrene (St) in bulk at 110 degreesC by means of these initiators in conjunction with a cuprous complex Cu(I)Br/bipyridine yields polystyrenes with photoactive alkoxy phenylketone groups. Gel permeation chromatography, spectroscopic spectroscopic and photodegradation studies revealed that the initiation efficiency was quantitative and low-polydispersity polystyrenes with photoinitiatar functionality in the end or middle of the chain were obtained.