Chemoenzymatic Polymerization of Hydrazone Functionalized Phenol

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dc.authorid0000-0002-7324-0385
dc.contributor.authorIsci, Irfan
dc.contributor.authorGokturk, Ersen
dc.contributor.authorTurac, Ersen
dc.contributor.authorSahmetlioglu, Ertugrul
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2016
dc.departmentNiğde ÖHÜ
dc.description.abstractHydrazone substituted oligophenol was synthesized via enzymatic oxidative polymerization of (E)-2-((2-phenylhydrazono) methyl) phenol. Enzymatic polymerization catalyzed by Horseradish peroxidase (HRP) enzyme and H2O2 oxidizer yielded oligophenol with hydrazone functionality on the side-chain. Effects of various factors including solvent system, reaction pH and temperature on the polymerization were studied. Optimum polymerization conditions with the highest yield (84%) and molecular weight (M-n = 8 x 103, DP approximate to 37, PDI - 1.11) was achieved using MeOH/pH 6.0 buffer (1 : 1 vol %) at 25 degrees C in 24 h under air. Synthesized oligomer was characterized by H-1 and C-13 NMR, FTIR, UV-Vis spectroscopy, GPC, cyclic voltammetry and thermo-gravimetric analyses. The polymerization involved hydrogen elimination from the monomer, and terminal units of the oligomer structure consisted of phenolic hydroxyl (-OH) end groups. The oligomer backbone possessed phenylene and oxyphenylene repeat units. The resulting oligomer was completely soluble in common organic solvents. The oligomer was thermally robust and exhibited 5% mass loss at 375 degrees C and 50% mass loss at 440 degrees C.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [115Z482]; Turkish Ministry of National Education
dc.description.sponsorshipThis research was partially supported by the Scientific and Technological Research Council of Turkey (TUBITAK) (115Z482). Ersen GOKTURK would like to acknowledge the Turkish Ministry of National Education for his Ph.D. scholarship.
dc.identifier.doi10.1134/S1560090416040047
dc.identifier.endpage420
dc.identifier.issn1560-0904
dc.identifier.issn1555-6123
dc.identifier.issue4
dc.identifier.scopus2-s2.0-84982126603
dc.identifier.scopusqualityQ3
dc.identifier.startpage411
dc.identifier.urihttps://dx.doi.org/10.1134/S1560090416040047
dc.identifier.urihttps://hdl.handle.net/11480/3617
dc.identifier.volume58
dc.identifier.wosWOS:000381868200002
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherMAIK NAUKA/INTERPERIODICA/SPRINGER
dc.relation.ispartofPOLYMER SCIENCE SERIES B
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.titleChemoenzymatic Polymerization of Hydrazone Functionalized Phenol
dc.typeArticle

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