Effect of pH, Temperature and Monomer Mole Ratios on the Swelling Properties of Polyethylene Oxide-Polymethacrylic AcidPolyacrylamide (PEO-PMAA-PAAM) Interpolymer Complex (IPC)
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Keywords

Swelling; Hydrogen bond; Hydrogel; IPC; PEO; PMAA; PAAM.

How to Cite

Banat, R. (2015). Effect of pH, Temperature and Monomer Mole Ratios on the Swelling Properties of Polyethylene Oxide-Polymethacrylic AcidPolyacrylamide (PEO-PMAA-PAAM) Interpolymer Complex (IPC). Jordan Journal of Chemistry (JJC), 10(2), 119-129. Retrieved from https://jjc.yu.edu.jo/index.php/jjc/article/view/131

Abstract

Swelling characteristics and physicochemical properties of the complexation process
between a polycarboxylic acid (polymethacrylic acid, PMAA) and non-ionic polymers,
polyethylene oxide (PEO) and polyacrylamide (PAAM), were studied. The presence of both
strong and weak hydrogen bonding in the (PEO-PMAA-PAAM) interpolymer complexes (IPCs)
have been correlated with their swelling behavior. Information about the molecular transport of
liquid into the polymer matrix of (PEO-PMAA-PAAM) can be clarified by understanding the
interpolymer complex equilibrium swelling behavior. The effect of contact time on the swelling
extent of the (IPC) samples with aqueous solution, pH, temperature and the monomer mole
ratios of MAA and AAM were investigated. The optimum swelling conditions were found to be at
pH 7, 30ºC and 180 minutes of contact time. Increasing the monomer mole ratio of the non-ionic
monomer (AAM) resulted in an improvement in the degree of swelling as a function of both time
and temperature. The swelling behavior of the prepared (IPC) showed compatible swelling
performance which can be used in bio-filtration process. Swelling/de-swelling cycles were used
to examine the structure stability and the swelling performance of the (IPC). Due to its structural
stability and high swelling performance, IPC with MAA: AAM (1:1) monomer mole ratio could be
used for an extended number of swelling/de-swelling cycles.

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