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S. Zapotoczny, F. Kataoka, M. Nowakowska

Photoinduced charge separation in aqueous solution of porphyrin-quinone end-capped poly(methacrylic acid) (in English)

Polimery 2014, No 1, 95


DOI: dx.doi.org/10.14314/polimery.2014.095

Summary

Photoinduced charge separation from porphyrin (P) to benzoquinone (Q) moieties covalently attached to the opposite chain ends of poly(methacrylic acid) (PMMA) was studied. The effect of polymer chain length, pH and ionic strength of the aqueous solution on the rate constant of charge separation and efficiency of P+• – Q–• radical ion pair formation was determined.


Key words: poly(methacrylic acid), anionic polymerization, porphyrin, benzoquinone, photoinduced electron transfer, photoinduced charge-separation, radical-ion pair, electron paramagnetic resonance (EPR)

e-mail: zapotocz@chemia.uj.edu.pl, maria.nowakowska@chemia.uj.edu.pl

S. Zapotoczny, F. Kataoka, M. Nowakowska (171 KB)
Photoinduced charge separation in aqueous solution of porphyrin-quinone end-capped poly(methacrylic acid)