Preparation and characterization of novel polyimides from 2,6-bis[1-(p-dimethylaminophenylimino)ethyl] pyridine for the selective extraction of some metals
Küçük Resim Yok
Tarih
2005
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
A group of new polyimides has been prepared by solution condensation of 2,6-bis[1-(p-dimethylaminophenylimino)ethyl] pyridine containing pendant NMe2 units and various dianhyrides in N-methylpyrrolidone (NMP). The tridentate (N-N'-N) pydim ligands were prepared by Schiff-base condensation of 2,6-diacetylpyridine and 4-dimethylaminoaniline in the presence of formic acid as catalyst. These polymers were investigated for their extraction capabilities for Zn(II), Mn(II), Cu(II), Cd (II) and Ni(II) and at different pH. Under different conditions enhanced selectivity was observed. Up to 98% quantitative recoveries were observed for all metals.
Açıklama
Anahtar Kelimeler
Gold(Iii), Gold, Derivatives, Separation
Kaynak
Polymer Bulletin
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
55
Sayı
1-2
