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Long wavelength photoinitiated free radical polymerization using conjugated thiophene derivatives in the presence of onium salts

dc.contributor.authorBeyazit, Selim
dc.contributor.authorAydogan, BİNNUR
dc.contributor.authorOsken, Ipek
dc.contributor.authorÖztürk, Turan
dc.contributor.authorYağcı, Yusuf
dc.contributor.institutionauthorTEMEL, BİNNUR
dc.date.accessioned2020-10-29T21:57:48Z
dc.date.available2020-10-29T21:57:48Z
dc.date.issued2011-01-01T00:00:00Z
dc.description.abstractLong wavelength free radical photopolymerization of (meth) acrylic monomers using a conjugated thiophene derivative, namely 3,5-diphenyldithieno[3,2-b: 2-,3--d]-thiophene (DDT) and one of the following compounds, namely diphenyliodonium hexafluorophosphate (Ph(2)I(+)PF(6)(-)), triphenylsulfonium hexafluorophosphate (Ph(3)S(+)PF(6)(-)) and N-ethoxy-2-methylpyridinium hexafluorophosphate (EMP(+)PF(6)(-)), as photosensitizer and coinitiator, respectively, was described. Polymerization occurred only when DDT, in the presence of the onium salts, was irradiated at wavelengths where the salts have no absorption. A feasible initiation mechanism involves intermolecular electron transfer from photoexcited thiophene compound to the onium salt. The relative initiation efficiencies of the salts were investigated and evaluated in terms of their redox potentials.
dc.identifier.citationBeyazit S., Aydogan B., Osken I., Öztürk T., Yağcı Y., -Long wavelength photoinitiated free radical polymerization using conjugated thiophene derivatives in the presence of onium salts-, POLYMER CHEMISTRY, cilt.2, ss.1185-1189, 2011
dc.identifier.doi10.1039/c1py00019e
dc.identifier.scopus79955835189
dc.identifier.urihttp://hdl.handle.net/20.500.12645/26484
dc.identifier.wosWOS:000290681800024
dc.titleLong wavelength photoinitiated free radical polymerization using conjugated thiophene derivatives in the presence of onium salts
dc.typeArticle
dspace.entity.typePublication
local.avesis.ida501f1b8-9b1a-4ca5-8e39-50c1622313f8
local.publication.isinternational1
relation.isAuthorOfPublicationd73c61cc-93fa-4fce-a294-f68e807cd50a
relation.isAuthorOfPublication.latestForDiscoveryd73c61cc-93fa-4fce-a294-f68e807cd50a

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