Synthesis and physicochemical characterization of PMMA and PNIPAM based block copolymers by using PEG based macro RAFT agents

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dc.authorwosidARSLAN, Hülya/GLT-0761-2022
dc.contributor.authorSenemoğlu, Yetkin
dc.contributor.authorHazer, Baki
dc.contributor.authorArslan, Hülya
dc.contributor.authorAllı, Abdulkadir
dc.contributor.authorAllı, Sema
dc.contributor.authorŞen, Sadi
dc.date.accessioned2023-07-26T11:51:27Z
dc.date.available2023-07-26T11:51:27Z
dc.date.issued2022
dc.departmentDÜ, Fen-Edebiyat Fakültesi, Kimya Bölümüen_US
dc.description.abstractPolyethylene glycol (PEG) based macro-RAFT agents were synthesized by the condensation reaction of PEG (Mn: 2000 Da and 8000 Da) with the carboxylic acid functionalized trithiocarbonate [S-Dodecyl-S'-(alpha,alpha'-dimethyl-alpha ''-acetic acid) tritiocarbonate (DDMAT)] using dicyclohexylcarbodiimide (DCC)/4-(dimethylamino) pyridine (DMAP) as catalyst at room temperature. Then, N-isopropylacrylamide (NIPAM) and methyl methacrylate (MMA) monomers were polymerized, respectively, using synthesized new macro-RAFT agents and N, N'-azo bis isobutyronitrile (AIBN) as the initiator. In all RAFT polymerizations, dispersity values were found in the range of 1.04 to 1.47, which showed that RAFT polymerization was applied successfully. The synthesized polymers were characterized using Fourier Transform Infrared Spectroscopy (FTIR), Proton Nuclear Magnetic Resonance Spectroscopy (H-1-NMR), Gel Permeation Chromatography (GPC) and Differential Scanning Calorimetry (DSC) techniques. The fractured surface images of PEG-b-PMMA block copolymers were obtained by Scanning Electron Microscopy (SEM). SEM images PEG-b-PMMA block copolymers have shown that the copolymers have a microporous structure. In addition, the swelling ratios and LCST values of the PEG-b-PNIPAM block copolymers were measured which were found to be very high. The lower critical temperature values of the copolymers are closer to that of the PNIPAM homopolymer, 32 degrees C, indicating its usability in drug delivery systems.en_US
dc.description.sponsorshipBulent Ecevit University Research Fund, Turkey (BAP project) [2016-72118496-04]en_US
dc.description.sponsorshipThis work was supported by Bulent Ecevit University Research Fund, Turkey (BAP project no: 2016-72118496-04).en_US
dc.identifier.doi10.1007/s12039-022-02047-z
dc.identifier.issn0974-3626
dc.identifier.issn0973-7103
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-85127267789en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.urihttps://doi.org/10.1007/s12039-022-02047-z
dc.identifier.urihttps://hdl.handle.net/20.500.12684/12562
dc.identifier.volume134en_US
dc.identifier.wosWOS:000775047500002en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorAllı, Abdulkadir
dc.institutionauthorAllı, Sema
dc.language.isoenen_US
dc.publisherIndian Acad Sciencesen_US
dc.relation.ispartofJournal of Chemical Sciencesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.snmz$2023V1Guncelleme$en_US
dc.subjectRaft Polymerization; Peg Based Macro-Raft Agent; Amphiphilic Block; Thermoresponsive Block Copolymeren_US
dc.subjectFragmentation Chain Transfer; Transfer Radical Polymerization; One-Step Synthesis; Graft-Copolymers; Molecular-Weight; Functional Polymers; Glass-Transition; Responsive Drug; Poly(N-Isopropylacrylamide); Brushesen_US
dc.titleSynthesis and physicochemical characterization of PMMA and PNIPAM based block copolymers by using PEG based macro RAFT agentsen_US
dc.typeArticleen_US

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