Bioengineering functional copolymers. XI. Copper(II)-poly(N-vinyl-2-pyrrolidone-co-N-isopropylacrylamide) macrocomplexes
Yükleniyor...
Tarih
2008
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Wiley
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
A series of poly(N-vinyl-2-pyrrolidone-co-N-isopropylacrylamide)s, poly(VP-co-NIPA) copolymers with different compositions were prepared by radical copolymerization of VP and NIPA in N,N'-dimethylformamide at 65 degrees C using 2,2'-azobisisobutyronitrile as initiator. Cu(II)-copolymer macrocomplexes were prepared by complexation of the copolymers with copper sulfate in aqueous solution at 40 degrees C. The structure and composition of the copolymers, and the formation of coordinated Cu(H)complexes between amide VP units and Cu2+ ions, were studied by FTIR spectroscopy, DSC and TGA-DTG in addition to electrical conductivity. Studies on the relationship between composition and thermal behavior showed that the values of T-g and T-d of the copolymers and their coordinated macrocomplexes increased with increasing VP content. The copolymers predominantly show amorphous structure while their Cu(II)-macrocomplexes show the presence of a crystalline phase. The conductive properties of the synthesized Cu(II)-poly(VP-co-NIPA) complexes are also discussed. (C) 2008 Wiley Periodicals, Inc.
Açıklama
Anahtar Kelimeler
Radical Polymerization, Metal-polymer Complexes, Thermal Properties, Bioengineering, Conducting Polymers
Kaynak
Journal Of Applied Polymer Science
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
109
Sayı
2
