Preparation and Swelling Characteristics of Semi-interpenetrating Polymer Networks Composed of Poly(acrylamide-co-acrylic acid)/ Linear Poly(ethyleneimine) or Poly(ethyleneimine)-metal Complexes

D.S. Svetlichnyi; N. Dolya; P. Govenko; B.Kh. Musabaeva; M.G. Yashkarova; S.E. Kudaibergenov

doi:10.18321/ectj406

Authors

D.S. Svetlichnyi Kazakh-American University, 050013, Almaty, Satpaev Str. 18a, Republic of Kazakhstan
N. Dolya Semipalatinsk State Shakarim University, 071412, Semipalatinsk, Glinka Str. 20a, Republic of Kazakhstan
P. Govenko Semipalatinsk State Shakarim University, 071412, Semipalatinsk, Glinka Str. 20a, Republic of Kazakhstan
B.Kh. Musabaeva Semipalatinsk State Shakarim University, 071412, Semipalatinsk, Glinka Str. 20a, Republic of Kazakhstan
M.G. Yashkarova Semipalatinsk State Shakarim University, 071412, Semipalatinsk, Glinka Str. 20a, Republic of Kazakhstan
S.E. Kudaibergenov Institute of Polymer Materials and Technology, 050013, Almaty, Satpaev Str. 18a, Republic of Kazakhstan

DOI:

https://doi.org/10.18321/ectj406

Abstract

Semi-interpenetrating polymeric networks (SIPNs) consisting of poly(acrylamide-co-acrylic acid) p(AAm-AAc) hydrogel matrix and linear polyethyleneimine (LPEI), polymer-metal complexes of LPEI with nickel (LPEI-Ni2+), cobalt (LPEI-Co²⁺) and zinc ions (LPEI-Zn²⁺) were prepared by template polymerization: crosslinked AAm-AAc chains were formed in aqueous solution by crosslinking copolymerization of equimolar mixture of AAm and AAc in the presence of N,N-methylenebisacrylamide and LPEI, LPEI-Ni²⁺, LPEI-Co²⁺, and LPEI-Zn²⁺ respectively. The swelling degree of SIPNs in water and swelling kinetics in 0.1N NaOH and 5% NH₄OH were determined. The exponential relation M_t/M_∞ = ktⁿ (where M_t is the mass of water absorbed at time t and M_∞ is the mass of water absorbed at equilibrium) was used for calculation of the exponent (n) describing the mechanism of water transport through these SIPN. The dynamic swelling behavior of SIPNs in alkaline media corresponds to anomalous swelling mechanism.

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