Synthesis and characterization of an A2B2-type miktoarm star copolymer based on poly(?-caprolactone) and poly(cyclohexene oxide)

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dc.contributor.authorUyar, Zafer
dc.contributor.authorGenli, Nasrettin
dc.contributor.authorCay, Bahri
dc.contributor.authorArslan, Ulku
dc.contributor.authorDurgun, Mustafa
dc.contributor.authorDegirmenci, Mustafa
dc.date.accessioned2024-04-24T16:00:03Z
dc.date.available2024-04-24T16:00:03Z
dc.date.issued2019
dc.departmentDicle Üniversitesien_US
dc.description.abstractAn A(2)B(2)-type miktoarm star copolymer with two linear poly(epsilon-caprolactone) (PCL) and two linear poly(cyclohexene oxide) (PCHO) arms was synthesized by using ring-opening polymerization (ROP), click chemistry, and photoinduced cationic polymerization, respectively. The ROP of epsilon-CL with a dihydroxy functional initiator, 3-cyclohexene-1,1-dimethanol, produced a well-defined two-arm PCL with a cyclohexene end-functional group, (PCL)(2)-CH. The subsequent bromination of (PCL)(2)-CH followed by azidation gave a diazido end-functionalized PCL, (PCL)(2)-(N-3)(2). Then, a well-defined two-arm PCL macrophotoinitiator with benzoin end-functional groups, (PCL)(2)-(PI)(2), was prepared by the azide/alkyne click reaction of this (PCL)(2)-(N-3)(2) and PI-alkyne, a separately prepared benzoin photoinitiator bearing a terminal alkyne group. Solid data obtained from the H-1 NMR, FT-IR, GPC, UV, and fluorescence spectroscopic studies proved the successful formation of the macrophotoinitiator having a core connected to two PCL chains and two benzoin photofunctional groups (PI). Finally, a novel A(2)B(2)-type miktoarm star copolymer was synthesized via photoinduced free radical-promoted cationic polymerization of cyclohexene oxide (CHO) monomer using (PCL)(2)-(PI)(2) as photoinitiator. The obtained star copolymer consists of two PCL arms as A blocks and two PCHO arms as B blocks, (PCL)(2)-(PCHO)(2), and was characterized by H-1 NMR, FT-IR, and GPC measurements. The thermal behaviors of all the intermediate and final polymers were studied by thermogravimetric and differential thermal analysis (TG/DTA).en_US
dc.description.sponsorshipHarran University; Scientific Research Council (HuBAK); Dicle University [13-MYO-125]en_US
dc.description.sponsorshipThe authors would like to thank Harran University, Scientific Research Council (HuBAK) and Dicle University, Scientific Research Projects Coordinator (Project No: 13-MYO-125) for financial support.en_US
dc.identifier.doi10.1007/s00289-018-2396-9
dc.identifier.endpage573en_US
dc.identifier.issn0170-0839
dc.identifier.issn1436-2449
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-85048579998
dc.identifier.scopusqualityQ1
dc.identifier.startpage553en_US
dc.identifier.urihttps://doi.org/10.1007/s00289-018-2396-9
dc.identifier.urihttps://hdl.handle.net/11468/14355
dc.identifier.volume76en_US
dc.identifier.wosWOS:000457419700003
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofPolymer Bulletin
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectRing-Opening Polymerization (Rop)en_US
dc.subjectPoly(Epsilon-Caprolactone)en_US
dc.subjectMacrophotoinitiatoren_US
dc.subjectClick Chemistryen_US
dc.subjectPhotoinduced Free Radical-Promoted Cationic Polymerizationen_US
dc.subjectA(2)B(2)-Type Miktoarm Star Copolymeren_US
dc.titleSynthesis and characterization of an A2B2-type miktoarm star copolymer based on poly(?-caprolactone) and poly(cyclohexene oxide)en_US
dc.titleSynthesis and characterization of an A2B2-type miktoarm star copolymer based on poly(?-caprolactone) and poly(cyclohexene oxide)
dc.typeArticleen_US

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