Bazı polisakkaritlerin schiff bazlarının sentezlenmesi ve metal komplekslerinin tayini
Yükleniyor...
Dosyalar
Tarih
2007
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Selçuk Üniversitesi Fen Bilimleri Enstitüsü
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Bu çalışmada çıkış maddesi olarak kitosan kullanıldı. Literatürde verilen metotlardan faydalanılarak çaprazbağlı kitosan (CCTS) elde edildikten sonra epiklorhidrin ile fonksiyonelleştirilerek CCTS-ECH elde edildi. Elde edilen bu bileşik sentezlenen Schiff bazları [(2-pikolilimino)benzen-1,4-diol(PBD), (2-piridil imino)benzen-1,4-diol (PyBD), N,N'-bis(2,5-dihidroksibenziliden)-1,2-diamino etan (DHSalen), N,N'-bis(2,5- dihidroksibenziliden)-1,2diaminobenzen (DH Salophen), N,N'-bis(2,5-dihidroksibenziliden)- 4,4'-diaminodifenileter (DHDPE), N,N'-bis(2,5-dihidroksibenziliden)-4,4'-diaminobenzen (DHDBP)] ile reaksiyonu yapılarak ligandlar sentezlendi. Etanollü ortamda çözünmüş CCTS-ECH-PBD, CCTS-ECH-PyBD, CCTS-ECH- DHDPE, CCTS-ECH-DHDBP ligandlarına, etanolde çözünmüş olan Ni(II), Cu(II), Zn(II) ve Cd(II) asetat tuzları ilave edilerek kompleksleri oluşturuldu. CCTS-ECH-DHDPE, CCTS- ECH-DHDBP, CCTS-ECH-DHSalophen, CCTS-ECH-DHSalen ligandlarına ise etanolde çözünmüş olan Fe(III) ve Cr(III) klorür tuzları ilave edilerek kompleksleri oluşturuldu. Sonuç olarak altı farklı ligand ve kompleksleri izole edilerek yapıları FT-IR, Elementel Analiz ve SEM ile aydınlatıldı. Ayrıca bazı örnekler seçilerek TGA/DTA ölçümleri yapıldı ve metal miktarları ContrAA ile tayin edildi.
In this study, chitosan was used as a starting material. After crosslinked chitosan (CCTS) was obtained according to the literature, CCTS-ECH was synthesized by functionalization with epichlorohydrin. The novel polymeric ligands were prepared from the reaction of CCTS-ECH with a variety of Schiff base, [(2-pycolylimino)benzene1,4-diol (PBD), [(2-pyridylimino)benzene1,4-diol (PyBD), N,N'-bis(2,5-dihydroxybenzylidene)-1,2- diaminoetan (DHSalen), N,N'-bis(2,5- hydroxybenzylidene)-1,2-diaminobenzene (DHSalophen), N,N'-bis(2,5-dihydroxy benzilydene)-4,4' diaminodiphenylether (DHDPE), N,N'-bis(2,5-dihydroxyben- zilydene)-4,4' diaminobenzene (DHDBP)]. Their metal complexes were prepared by addition of a solution of acetate salts of Ni(II), Cu(II), Zn(II) and Cd(II) dissolved in ethanol to a suspension of CCTS-ECH-PBD, CCTS-ECH-PyBD, CCTS-ECH-DHDPE, CCTS-ECH-DHDBP swelled in ethanol, and a solution of chloride salts of Fe(III) and Cr(III) to a suspension of CCTS-ECH-DHDPE, CCTS-ECH-DHDBP, CCTS-ECH-DHSalophen, CCTS-ECH-DHSalen. In conclusion, six different ligands and their complexes were isolated and their structures were characterized by FT-IR spectra, elementary analysis, TGA/DTA, SEM and ContrAA.
In this study, chitosan was used as a starting material. After crosslinked chitosan (CCTS) was obtained according to the literature, CCTS-ECH was synthesized by functionalization with epichlorohydrin. The novel polymeric ligands were prepared from the reaction of CCTS-ECH with a variety of Schiff base, [(2-pycolylimino)benzene1,4-diol (PBD), [(2-pyridylimino)benzene1,4-diol (PyBD), N,N'-bis(2,5-dihydroxybenzylidene)-1,2- diaminoetan (DHSalen), N,N'-bis(2,5- hydroxybenzylidene)-1,2-diaminobenzene (DHSalophen), N,N'-bis(2,5-dihydroxy benzilydene)-4,4' diaminodiphenylether (DHDPE), N,N'-bis(2,5-dihydroxyben- zilydene)-4,4' diaminobenzene (DHDBP)]. Their metal complexes were prepared by addition of a solution of acetate salts of Ni(II), Cu(II), Zn(II) and Cd(II) dissolved in ethanol to a suspension of CCTS-ECH-PBD, CCTS-ECH-PyBD, CCTS-ECH-DHDPE, CCTS-ECH-DHDBP swelled in ethanol, and a solution of chloride salts of Fe(III) and Cr(III) to a suspension of CCTS-ECH-DHDPE, CCTS-ECH-DHDBP, CCTS-ECH-DHSalophen, CCTS-ECH-DHSalen. In conclusion, six different ligands and their complexes were isolated and their structures were characterized by FT-IR spectra, elementary analysis, TGA/DTA, SEM and ContrAA.
Açıklama
Anahtar Kelimeler
Kitosan, Chitosan, Çaprazbağlı kitosan, Crosslink chitosan, Schiff bazı, Schiff base, Metal kompleksler, Metal complexes
Kaynak
WoS Q Değeri
Scopus Q Değeri
Cilt
Sayı
Künye
Koçak, N. (2007). Bazı polisakkaritlerin schiff bazlarının sentezlenmesi ve metal komplekslerinin tayini. Selçuk Üniversitesi, Yayımlanmış doktora tezi, Konya.
