Premium
Branched and linear polyethyleneimine supports for resins with retention properties for copper and uranium. VII
Author(s) -
Rivas B. L.,
Maturana H. A.,
Catalán R. E.,
Perich I. M.
Publication year - 1989
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1989.070380503
Subject(s) - copper , uranium , elution , sodium carbonate , thermal stability , chemistry , nuclear chemistry , carbonate , sodium , materials science , organic chemistry , chromatography , metallurgy
Weak and strong basic resins were synthesized by crosslinking with 1,7‐dibromoheptane and 1,12‐dibromododecane and subsequent N ‐methylation reaction of branched and linear polyethyleneimine. All the resins are insoluble in water. It was found that the N ‐methylated resins showed the highest retention ability for uranium. The resins do not retain significatively iron (> 10%), and only two of them retain copper above 80% at optimum pH. Elution assays with sulphuric acid, sodium carbonate, and thermal stability were also carried out.