Obtention of poly(allylamine)-metal complexes through liquid-phase polymerbased retention (LPR) technique

Authors
Rivas, BL Pereira, ED
Citation
Bl. Rivas et Ed. Pereira, Obtention of poly(allylamine)-metal complexes through liquid-phase polymerbased retention (LPR) technique, BOL SOC CH, 45(1), 2000, pp. 165-171
Citations number
14
Categorie Soggetti
Chemistry
Journal title
BOLETIN DE LA SOCIEDAD CHILENA DE QUIMICA
ISSN journal
03661644 → ACNP
Volume
45
Issue
1
Year of publication
2000
Pages
165 - 171
Database
ISI
SICI code
0366-1644(200003)45:1<165:OOPCTL>2.0.ZU;2-1
Abstract
Poly(allylamine)-metal complexes with different metal ions (Co(II), Cu(II), and Ni(II) in conjunction with an ultrafiltration membrane were prepared. They were obtained varying the polymer/metal ion ratio and the pH (1, 3, 5, 7). The retention at pH 1 and 3 was lower than 10%. The study was carried out with the polymer-metal complexes obtained at pH 5 due to the high reten tion but not at pH 7 because Cu(II) precipitated. They were characterized b y FT-IR, UV-Vis spectroscopy, thermogravimetric analysis, and intrinsic vis cosity.