Topic
2-Acrylamido-2-methylpropane sulfonic acid
About: 2-Acrylamido-2-methylpropane sulfonic acid is a research topic. Over the lifetime, 115 publications have been published within this topic receiving 2033 citations.
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TL;DR: In this paper, the relationship between the formation mechanism and the swelling behavior of acrylamide (AAm)/2-acrylamido-2-methylpropane sulfonic acid sodium salt (AMPS)-based hydrogels was studied.
270 citations
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TL;DR: In this article, the synthesis of N-vinylpyrrolidone/acrylic acid/2-acrylamido-2-methylpropane sulfonic acid (NVP/AAc/AMPS) based hydrogels by UV-curing technique was studied and their swelling behavior, heavy metal ion recovery capabilities were investigated.
Abstract: In this work, the synthesis of N-vinylpyrrolidone/acrylic acid/2-acrylamido-2-methylpropane sulfonic acid (NVP/AAc/AMPS) based hydrogels by UV-curing technique was studied and their swelling behavior, heavy metal ion recovery capabilities were investigated. The structures of hydrogels were characterized by FT-IR analysis and the results were consistent with the expected structures. Thermal gravimetric analysis of hydrogels showed that the thermal stability of hydrogel decreases slightly with incorporation of AMPS units into the structure. In addition, the morphology of the dry hydrogel sample was examined by SEM. According to swelling experiments, hydrogels with higher AMPS content gave relatively higher swelling ratio compared to neat hydrogel. These hydrogels were used for the separation of Cd(II), Cu(II) and Fe(III) ions from their aqueous solutions. The influence of the uptake conditions such as pH, time and initial feed concentration on the metal ion binding capacity of hydrogel was also tested. The selectivity of the hydrogel towards the different metal ions tested was Cd(II) > Cu(II) > Fe(III). It was observed that the specific interaction between metal ions and ionic co-monomers in the hydrogel affected the metal binding capacity of the hydrogel. The recovery of metal ions was also investigated in acid media.
146 citations
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TL;DR: In the present work a novel heterogeneous cation exchange membrane (CEM) composed of poly vinyl chloride (PVC) and 2-acrylamido-2-methylpropane sulfonic acid based hydrogel (AMAH) was prepared to optimize the performance in desalination.
125 citations
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TL;DR: In this paper, the effect of absorbed dose (kGy) and the chitosan:AMPS ratio on graft hydrogelization was studied and the structure of the prepared hydrogels was confirmed using infrared spectroscopy (IR).
117 citations
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TL;DR: In this article, the impedances of poly(2-acrylamido-2-methylpropane sulfonic acid), AMPS and its alkali salts were measured at various humidities and temperatures in the frequency range of 100-1 MHz.
92 citations