ISSN 1070-4272, Russian Journal of Applied Chemistry, 2006, Vol. 79, No. 11, pp. 1862!1868. + Pleiades Publishing, Inc., 2006.
Original Russian Text + T.V. Druzhinina, E.V. Abaldueva, M.A. Struganova, 2006, published in Zhurnal Prikladnoi Khimii, 2006, Vol. 79, No. 11,
AND POLYMERIC MATERIALS
Influence of Chemical Composition and Structure of Polymeric
Amine-Containing Chemisorption Fibers on Complexing
Sorption of Copper Ions
T. V. Druzhinina, E. V. Abaldueva, and M. A. Struganova
Kosygin Moscow State Textile University, Moscow, Russia
Received May 29 2006
Abstract-The influence of the structure of polyamine chemisorption fibers on copper ion sorption was
Extensive data are available on the synthesis of the
chemisorption fibers based on polymers with active
functional groups of various chemical nature .
However, sorption properties of these materials require
more comprehensive study. The correlations between
the structure and sorption properties of fibrous chemi-
sorbents are of high importance, since they favor
the development of new highly efficient methods for
purification of process solutions and wastewater to
prevent pollution of the environment and reduce the
consumption of valuable raw materials.
The chemical composition and structure of the
polymeric fibrous matrix already in the stage of
chemisorbent preparation determines the distribution
of ligand groups, e.g., on the surface or in the bulk.
This affects the ratio of the diffusion and kinetic
control of sorption.
The use of bifunctional compounds for incorpora-
tion of sorption-active groups into a fiber changes
the conformation set of the polymeric chain because
of formation of a cross-linked polymer, so that a part
of the ligand groups able to form coordination bonds
becomes restrictedly mobile.
In this study, we examined the influence of the
composition and structure of chemisorption polymeric
fibrous materials on the kinetics of copper ion sorp-
Copper ions were sorbed from aqueous copper sul-
fate solutions under static conditions at room tempera-
ture. The pH created by dissolved copper salt was not
additionally adjusted. The ratio of the solution to the
sorbent was 100. The working solutions were prepared
by dilution of a 10 mM aqueous CuSO
Sorption was evaluated as the difference between
the copper concentrations in solution before and after
the contact with the sorbent. These concentrations
were determined ionometrically  on an EKSPERT-
001-4 analyzer equipped with a copper-selective elec-
trode with a KhS-Cu-001 chalcogenide glass mem-
brane and an EVL-1 M3 reference Ag/AgCl electrode.
concentration in the solutions studied
was calculated from the potentials E (mV) measured
using the calibration equation E = a + b Pc, where
a and b were found by the least-squares method
with MathCAD 2001 software from the formula c =
; c is the copper concentration (M).
Fig. 1. Kinetic parameter B
as a function of sorption dura-
tion t. Copper concentration 10 mM, temperature 20oC,
solution-to-sorbent ratio 100. Chemisorbent: (1) PCA3
PGMA3TETA, (2) PVA3PGMA3TETA, and (3)HC3
PGMA3TETA. Regression equations: (1) y = 0.0002x 3
= 0.9838; (2) y 3 0.0005x 3 0.0432, R
(3) y = 0.0003x 3 0.0225, R