Polymeric photosensitizers. Part 4. Synthesis of poly(sodium styrenesulfonate-block-N-vinylcarbazole) by nitroxide-mediated free radical polymerization
M. Nowakowska et al., Polymeric photosensitizers. Part 4. Synthesis of poly(sodium styrenesulfonate-block-N-vinylcarbazole) by nitroxide-mediated free radical polymerization, POLYMER, 42(5), 2001, pp. 1817-1823
Block amphiphilic copolymer, poly(sodium styrenesulfonate-block-N-vinylcarb
azole) (PSSS-block-VCz), was synthesized by nitroxide-mediated "living" fre
e radical polymerization in homogenous solution. The procedure of the synth
esis of poly(sodium styrenesulfonate) (PSSS) via the same technique was mod
ified to reduce the amount of mediator and initiator needed. Camphorsulphon
ic acid (CSA) and acetic anhydride (AA) were used as rate-accelerating addi
tives in polymerization of PSSS and PSSS-block-VCz, respectively. The physi
cochemical and photophysical properties of PSSS-block-VCz copolymer were de
termined and discussed. (C) 2000 Elsevier Science Ltd. All rights reserved.