
TY  - JOUR
A1  - Stapleton, IW 
T1  - A simple method of polyamine purification
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1985
VL  - 38
IS  - 4
SP  - 633
EP  - 636
KW  - 
UR  - https://doi.org/10.1071/CH9850633 
N2  - A simple procedure for the large-scale purification of commercial polyethyleneamines (H2N[CH2CH2NH]nH where n = 2-5) is described in which the per- tosylate salt separates as a crystalline solid from aqueous solution. The salts require no further purification except for pentaethylenehexamine (n = 5), which requires recrystallization from water. The free bases are regenerated from the tosylate salt by an anion-exchange resin. 
ER  -

