Synthesis, Characterization and Swelling study of Poly (Methacrylic acid-co-Maleic acid) Hydrogels

Belkadi, Soumia; Bendaikha, Hayet; Lebsir, Fouad; Ould-Kada, Seghier

doi:10.13005/ojc/340244

Cited by 5 publications

(5 citation statements)

References 19 publications

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“…Lampman et al (2010) [ 43 ] has stated that O-H group in carboxylic acid group would stretch, usually very broad (strongly H-bonded) and often overlap the C-H absorptions. Similarly, Harun et al (2019) [ 46 ] and Belkadi et al (2018) [ 47 ] have also reported a broad -OH peak around 3600 cm −1 to 3100 cm −1 . Peaks at 2985, 2884 cm −1 , 1449 cm −1 , and 753 cm −1 were assigned to the aliphatic carbons of the polymer chain backbone [ 48 ] (Bajpai et al 2009).…”

Section: Resultsmentioning

confidence: 77%

“…So, completion of polymerization for both microspheres confirmed by the disappearance of C=C group in both spectra and has successfully being synthesized by using emulsion polymerization. Lastly, the signals at 1263 cm −1 to 1148 cm −1 indicated the presence of C-O group in the acrylate structure of nBA and carboxylic acid group of MAA [ 47 ]. Each peak in copolymers FTIR spectra ( Figure 4 a) shows an increase in transmittance intensity.…”

Section: Resultsmentioning

confidence: 99%

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Enhancing Electrochemical Biosensor Performance for 17β-Estradiol Determination with Short Split—Aptamers

et al. 2022

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Chronic exposure of 17β-estradiol (E2) even at low concentration can disorganize the endocrine system and lead to undesirable health problems in the long run. An electrochemical biosensor for rapid detection of E2 in water samples was successfully developed. The biosensor was based on split DNA aptamers attached onto poly (methacrylic acid-co-n butyl acrylate-succinimide) microspheres deposited on polypyrrole nanowires coated electrode (PPY/PMAA-NBA). The sandwich paired of split DNA aptamers used were truncated from 75 mer parent aptamers. These two strands of 12-mer and 14-mer split DNA aptamers were then immobilized on the PMAA-NBA microspheres. In the presence of E2, the split DNA aptamers formed an apt12-E2-apt14 complex, where the binding reaction on the electrode surface led to the detection of E2 by differential pulse voltammetry using ferrocyanide as a redox indicator. Under optimum conditions, the aptasensor detected E2 concentrations in the range of 1 × 10−4 M to 1 × 10−12 M (R2 = 0.9772) with a detection limit of 4.8 × 10−13 M. E2, which were successfully measured in a real sample with 97–104% recovery and showed a good correlation (R2 = 0.9999) with the established method, such as high-performance liquid chromatography. Interactions between short and sandwich-type aptamers (split aptamers) demonstrated improvement in aptasensor performance, especially the selectivity towards several potential interferents.

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Section: Resultsmentioning

confidence: 77%

Section: Resultsmentioning

confidence: 99%

Enhancing Electrochemical Biosensor Performance for 17β-Estradiol Determination with Short Split—Aptamers

et al. 2022

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“…The absorption band of C-H and O-H bends were observed at 1465.90 and 1342.56 cm -1 . The peaks at 1100.44 cm -1 were attributed to C-O stretch [7], [32]. The absorption bands at ~3100 cm -1 (C-H stretch of vinyl group) and ~1600 cm -1 (conjugated C=C) were disappeared.…”

Section: Resultsmentioning

confidence: 97%

Jelatin/PAAm-tabanlı IPN Hidrojelleri Kullanarak Sulu Çözeltiden Krom (VI) Uzaklaştırmasının Değerlendirmesi

Akalın

2023

Düzce Üniversitesi Bilim Ve Teknoloji Dergisi

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In this work, gelatin (G)-polyacrylamide (PAAm)-based interpenetrating polymer network (IPN) hydrogels involving maleic acid (MA) was prepared using by radical polymerization. Full-IPN and semi-IPN hydrogels were synthesized by using glutaraldehyde and ethylene glycol dimethacrylate (EGDMA) as a crosslinker. The water absorbency of hydrogels was investigated, and the values increased with MA and G. The chemical structures of full-IPN and semi-IPN hydrogels were tested by Fourier Transform Infrared Spectroscopy (FTIR). Morphological test was done by using Scanning Electron Microscope/ Energy Dispersive X-ray Spectroscopy (SEM/EDX). Thermal properties were examined with Differential scanning calorimeter (DSC) analyzer and Thermogravimetric analysis (TGA). The mechanical analysis was performed with Zwick Universal Testing Machine. Thermal and mechanical stabilities of full-IPN hydrogel was higher than semi-IPN. The efficiency of adsorption parameters (contact time, initial feed concentration, and pH) on Chromium (VI) ion adsorbing property of Full-IPN hydrogel was also determined. Isotherms were explained with the Langmuir or Freundlich equations. According to the results of both isotherms, it can be said that the hydrogel surface was homogeneous, and the adsorption of Chromium (VI) occurred in a monolayer.

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“…[ 38 ] In addition to these peaks, PMMA‐co‐MAA (curve (b)) also displays other peaks at 1250 and 1089 cm −1 that are associated with CO stretching and COC stretching. [ 39 ] In contrast, PMAA (curve (c)) reveals additional absorption peaks of OH stretching, CH stretching and CC stretching at 3468, 2930, and 1683 cm −1 , [ 40 ] respectively.…”

Section: Resultsmentioning

confidence: 99%

Effect of the Functional Groups of Polymers on Their Adsorption Behavior on Graphene Oxide Nanosheets

Al‐Bermany

Chen

2023

Macro Chemistry & Physics

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Graphene‐based polymer nanocomposites are emerging materials for both fundamental research and industrial applications. The influence of polymer functional groups on their adsorption behavior onto graphene oxide (GO) nanosheets is investigated, with poly(methyl methacrylate) (PMMA), poly(methyl methacrylate‐co‐methacrylic acid) (PMMA‐co‐MAA), and poly(methacrylic acid) (PMAA) having the same backbone but different functional side groups selected as the model polymers. Fourier transform infrared spectroscopy and X‐ray diffraction results confirm the interfacial interaction between the polymer and GO. Thermogravimetric analysis reveals notable enhancements in the amount of the adsorbed polymer up to 30.6 wt.% for PMMA‐co‐MAA/GO and 49.7 wt.% PMAA/GO compared with 18.7 wt.% for PMMA/GO. The water contact angle decreases from 71.3o for PMMA/GO to 69.1° for PMMA‐co‐MAA/GO and to 61.2° for PMAA/GO. The further washing process reduces the adsorption amount for the polymer/GO hybrid. Overall, the polar functional groups of the polymer directly influence the polymer adsorption behavior onto GO.

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Synthesis, Characterization and Swelling study of Poly (Methacrylic acid-co-Maleic acid) Hydrogels

Cited by 5 publications

References 19 publications

Enhancing Electrochemical Biosensor Performance for 17β-Estradiol Determination with Short Split—Aptamers

Enhancing Electrochemical Biosensor Performance for 17β-Estradiol Determination with Short Split—Aptamers

Jelatin/PAAm-tabanlı IPN Hidrojelleri Kullanarak Sulu Çözeltiden Krom (VI) Uzaklaştırmasının Değerlendirmesi

Effect of the Functional Groups of Polymers on Their Adsorption Behavior on Graphene Oxide Nanosheets

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