Bioengineering functional copolymers. IX. synthesis and characterization of stimuli-responsive poly(N-isopropylacrylamide-co-N-vinyl-2-pyrrolidone) and its Cu(II) complexes

Basit Öğe Kaydı
dc.authorid0000-0003-1570-0344
dc.contributor.authorRzaev, Zakir M. O.
dc.contributor.authorDenizli, Betül Kırcı
dc.contributor.authorDenizli, Haluk
dc.date.accessioned2021-06-23T18:32:23Z
dc.date.available2021-06-23T18:32:23Z
dc.date.issued2008
dc.departmentBAİBÜ, Fen Edebiyat Fakültesi, Fizik Bölümüen_US
dc.description.abstractRadical copolymerization of N-isopropylacrylamide (NIPA) with N-vinyl-2-pyrrolidone (VP) were carried out with 2,2’- azobisisobutyronitrile (AIBN) as an intiator in N,N’-dimethylformamide solution at $65^ oC$ under nitrogen atmosphere. Cu(II)–copolymer macrocomplexes were prepared by incorporation of copolymers with copper sulfate in aqueous solution at $40^ oC$. Structure and composition of the obtained copolymers, and the formation of coordinated Cu(II)- complexes between amide VP unit and Cu(II) ions were studied by FTIR spectroscopy, DSC and TGA-DTG methods, as well as by the electrical conductivity measurements. Compositon of the copolymers synthesized in a wide range of monomer feed ratios were determined by FTIR and $^ 1H (^ {13}C)$ NMR–DEPT-135 spectroscopy. The monomer reactivity ratios were determined by Fineman-Ross, Kelen-Tüdös and non-linear regression methods. It was observed that studied monomer pair has some tendency to alternation in the chosen monomer feed ratios due to formation of intermolecular interaction through H-bonding and N→O=C coordination. The copolymers predominantly show amorphous structure while their Cu(II)–macrocomplexes exhibit crystalline phase. The conductive properties of the synthesized Cu(II)–poly(VP-co-NIPA) complexes was also discussed.The synthesized poly(NIPA-co-VP)s show temperature sensitiveness ($T _s$) and higher glass-transition temperature ($T _g$) and thermal stability, polyelectrolyte and stimuli-responsive (temperature- and pH-sensitive) behavior, and can be attributed to the class of bioengineering functional copolymers useful for application in various gene- and bioengineering processes, drug delivery systems, and biomacromolecule conjugations.en_US
dc.identifier.endpage115en_US
dc.identifier.issn1303-5002
dc.identifier.issn2687-475X
dc.identifier.issue2en_US
dc.identifier.startpage99en_US
dc.identifier.trdizinid103968en_US
dc.identifier.urihttps://app.trdizin.gov.tr/makale/TVRBek9UWTRPQT09
dc.identifier.urihttps://hdl.handle.net/20.500.12491/1814
dc.identifier.volume36en_US
dc.indekslendigikaynakTR-Dizinen_US
dc.institutionauthorDenizli, Betül Kırcı
dc.institutionauthorDenizli, Haluk
dc.language.isoenen_US
dc.relation.ispartofHacettepe Journal of Biology and Chemistryen_US
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectFunctional Copolymers
dc.subjectStimuli-Responsive
dc.subjectPoly(NIPA)
dc.subjectN-Vinyl-2-Pyrrolidone
dc.subjectCu(II) Complexes
dc.titleBioengineering functional copolymers. IX. synthesis and characterization of stimuli-responsive poly(N-isopropylacrylamide-co-N-vinyl-2-pyrrolidone) and its Cu(II) complexesen_US
dc.typeArticleen_US

Dosyalar

Orijinal paket
Listeleniyor 1 - 1 / 1
Küçük Resim
İsim:
zakir-rzaev.pdf
Boyut:
331.68 KB
Biçim:
Adobe Portable Document Format
Açıklama:
Tam metin/ Full text
İndir

Koleksiyon

TR-Dizin İndeksli Yayınlar Koleksiyonu
Fizik Bölümü Koleksiyonu