Bisacylphosphine oxides as bifunctional photoinitiators for block copolymer synthesis

GUNERSEL, ED; HEPUZER, Y; Yagci, Yusuf

doi:10.1002/(sici)1522-9505(19990201)264:1<88::aid-apmc88>3.0.co;2-o

Bisacylphosphine oxides as bifunctional photoinitiators for block copolymer synthesis

Atıf İçin Kopyala

GUNERSEL E., HEPUZER Y., Yagci Y.

ANGEWANDTE MAKROMOLEKULARE CHEMIE, cilt.264, ss.88-91, 1999 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 264
Basım Tarihi: 1999
Doi Numarası: 10.1002/(sici)1522-9505(19990201)264:1<88::aid-apmc88>3.0.co;2-o
Dergi Adı: ANGEWANDTE MAKROMOLEKULARE CHEMIE
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.88-91
İstanbul Teknik Üniversitesi Adresli: Evet

Özet

Block copolymers of styrene (St) and methyl methacrylate (MMA) were prepared via a two-step procedure by using bisacylphosphine oxide (BAPO) as photoinitiator. Photolysis of BAPO at lambda = 420 nm in the presence of St yielded polymers with monoacylphosphine oxide terminal groups. Subsequent irradiation of the polymers in the presence of MMA at lambda = 380 nm produced block copolymers. Block copolymer formation was evidenced by spectral measurements and GPC analysis.