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The electron transfer behavior of some new polymers with viologen structure on the reduction of azobenzene in heterophases
Author(s) -
Liu FuTian,
Song Ning,
Yu XianDa,
Li ShuBen
Publication year - 1994
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.1994.021950623
Subject(s) - viologen , azobenzene , chemistry , polymer , polymer chemistry , vinyl alcohol , photochemistry , electron transfer , organic chemistry
Abstract Several polymers with viologen structure were prepared by polymer analogous reaction with poly(vinyl alcohol) (PVA) and ethylcellulose (EC). The polymers were used as electron‐transfer catalysts (ETC) for the reduction of azobenzene, either in a Zn‐PV 2+ system (reductant: Zn, in CH 3 CN/H 2 O) or a Na 2 S 2 O 4 ‐PV 2+ system (reductant: Na 2 S 2 O 4 , in CH 2 Cl 2 /H 2 O). It was found that all the polymers used in our work had the ability to mediate the reduction of azobenzene. Two factors (polymeric carrier and viologen group) are believed to affect the reduction.