Oxidative polymerization of 4-[(4-phenylazo-phenyimino)-methyl]-phenol catalyzed by horseradish peroxidase

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dc.authorid0000-0002-7324-0385
dc.contributor.authorTurac, Ersen
dc.contributor.authorSahmetlioglu, Ertugrul
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2010
dc.departmentNiğde ÖHÜ
dc.description.abstractSchiff base derivate 4-[(4-phenylazo-phenyimino)-methyl]-phenol (4-PPMP) monomer was synthesized by condensation reaction and the chemical structure of the monomer has been characterized by UV-vis, FT-IR, H-1 NMR spectroscopies. 4-PPMP readily dissolves in 1,4-dioxane, THF, DMF, diethyl ether, chloroform and DMSO. Its solubility in methanol and ethanol is much lower. Enzymatic oxidative polymerization of azobenzene derivate 4-[(4-phenylazo-phenyimino)-methyl]-phenol using horseradish peroxidase (HRP) in the presence of hydrogen peroxide as catalyst and oxidizing agent was carried out in various solvents (acetone, methanol, ethanol, N,N-DMF, and 1,4-dioxane) and phosphate buffers (pH 6, 6.8, 7, and 7.2) at room temperature. Studies have shown that a black polymer having a melting point of 290 degrees C was successfully produced in good yields by utilizing aqueous 1,4-dioxane as the solvent at pH 6. Poly(4-[(4-phenylazo-phenyimino)-methyl]-phenol) P(4-PPMP) shows good solubility in 1,4-dioxane, DMF and DMSO but it is only sparingly soluble in chloroform, THF, methanol and ethanol. P-(4-PPMP) is insoluble in diethyl ether. Characterization of P-(4-PPMP) was carried out via UV-vis, FT-IR, H-1 NMR, elemental analysis and SEC measurements. The number-average molecular weight (M-n), weight-average molecular weight (M-w) and polydispersity index (PDI) of the polymer were determined to be 7970.4, 8146.2 and 1.02 g mol(-1), respectively. FT-IR and H-1 NMR studies confirmed the presence of phenylene and oxyphenylene units with in the polymer backbone. The optical band gaps (E-g) of 4-PPMP and P-(4-PPMP) were calculated as 3.69 and 3.36eV, respectively. (C) 2009 Elsevier B.V. All rights reserved.
dc.description.sponsorshipScientific and Technological Research Council of Turkish [TUBITAK-104M210]
dc.description.sponsorshipAuthors gratefully thank to Assistant Professor Hasan MART for his valuable contributions and Scientific and Technological Research Council of Turkish (TUBITAK-104M210).
dc.identifier.doi10.1016/j.synthmet.2009.10.026
dc.identifier.endpage172
dc.identifier.issn0379-6779
dc.identifier.issue45323
dc.identifier.scopus2-s2.0-72549091040
dc.identifier.scopusqualityQ1
dc.identifier.startpage169
dc.identifier.urihttps://dx.doi.org/10.1016/j.synthmet.2009.10.026
dc.identifier.urihttps://hdl.handle.net/11480/4975
dc.identifier.volume160
dc.identifier.wosWOS:000274117700029
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherELSEVIER SCIENCE SA
dc.relation.ispartofSYNTHETIC METALS
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectEnzymatic oxidative polymerization
dc.subjectAzobenzene derivate
dc.subjectHorseradish peroxidase
dc.titleOxidative polymerization of 4-[(4-phenylazo-phenyimino)-methyl]-phenol catalyzed by horseradish peroxidase
dc.typeArticle

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