Copolymerization of poly (o-phenylenediamine-co-o/p-toluidine) via the chemical oxidative technique: synthesis and characterization

Melad, Omar; Jarour, M.

doi:10.17222/mit.2016.023

Cited by 7 publications

(3 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The range of 1114 cm −1 is due to C=N stretching in the aromatic ring. Peaks at 856-922 cm −1 can be assigned to 1,2,4-tri-substituted benzene structure [48]. These data revealed to the emeraldine form for nanocomposite of poly(AAco-OPD).…”

Section: Ft-ir Spectra Of Synthesized Nanoparticlesmentioning

confidence: 71%

Copolymerization of anthranilic acid and o-phenylenediamine by a free radical in the presence of nanoparticles of copper hexacyanoferrates for the removal of cesium ions in aqueous solutions

et al. 2022

View full text Add to dashboard Cite

Core–shell nanocomposite of copper hexacyanoferrate copolymer of anthranilic acid with o-phenylenediamine (CHCF-poly-AA-co-OPD)) was synthesized and used as ion exchanger for the removal of cesium ions from wastewater. The nanocomposite was prepared by implantation of CHCF nanoparticles into the copolymer of poly(AA-co-OPD) during the polymerization process. By transmission electron microscope, scanning electron microscope and Brunauer–Emmett–Teller, the surface morphology and the porous structure were investigated. The physicochemical characterization of the prepared core–shell nanocomposite was carried out by FT-IR spectroscopy, XRD and thermogravimetric analysis. As a function in pH, metal ion concentration, shaking time and temperature, the capacity of the CSNC toward cesium ions and the behaviors of the process were studied. The results illustrated that the maximum capacity was recorded 1.35 mmol g−1 at pH 11, 10 mmol L−1 Cs+ and 25 °C. Also, Langmuir, Freundlich, Temkin and Dubinin–Radushkevich (D–R) isotherms models were studied, in which the data were well fitted with Langmuir model, suggesting that the uptake of Cs+ was monolayer and homogeneous. Also, the adsorption kinetics data were fitted well to pseudo-second-order model. Thermodynamic parameters were calculated in the temperature from 25 to 60 °C, and the data revealed that Cs+ sorption was endothermic, spontaneous and more favorable at higher temperature. Up to 92% desorption of Cs+ was completed with 2 M KCl.

show abstract

Section: Ft-ir Spectra Of Synthesized Nanoparticlesmentioning

confidence: 71%

Copolymerization of anthranilic acid and o-phenylenediamine by a free radical in the presence of nanoparticles of copper hexacyanoferrates for the removal of cesium ions in aqueous solutions

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The range of 1406-1412 cm -1 is due to C=N stretching in the aromatic ring. Peaks in the range 856-922 cm -1 can be assigned to 1,2,4-tri-substituted benzene structure [34]. The remaining range of bands 746-762 cm -1 could be attributed to the outof-plane C-H bending vibration of the benzene ring.…”

Section: Ft-ir Spectra Of Nano-sized Copolymers Of Poly(aa-co-o-pd)mentioning

confidence: 96%

Synthesis, characterization, morphology and adsorption performance towards Cu+2 ions of nano-sized copolymers of anthranilic acid and o-phenylenediamine poly(AA-co-o-PD)

et al. 2019

View full text Add to dashboard Cite

N ANORODES, nanosheets, nanospheres and nano-amorphous shape with different particles size of copolymer of anthranilic acid with o-phenylenediamine poly(AA-co-o-PD) were synthesized by redox polymerization initiated by FeSO 4 .7H 2 O as redox initiator and ammonium peroxydisulfate (APS) as oxidant in different concentrations of aqueous solutions of hydrochloric acid. The influence of synthetic parameters such as acid concentration and the presence of redox initiator were investigated. The morphology and particles size were studied by transmission electron microscope (TEM) and scanning electron microscope (SEM). The results showed that the morphology and average particle size of polymeric nano particles according to SEM and TEM analyses were different based upon the conditions of the copolymerization. The physico-chemical characterization of the prepared nanoparticles was carried out by Fourier transform infrared spectroscopy (FT-IR), X-ray powder diffraction (XRD). Which FT-IR confirmed the structure of poly(AA-co-o-PD) nanoparticles in emeraldine form. The molecular weight was determined by gel permeation chromatography (GPC). The surface area of nanocopolymer particles was determined also by Brunauer-Emmett-Teller (BET). The competition of the prepared nano-sized copolymers particles towards the adsorption of copper ions from aqueous solutions was investigated. The results showed that the adsorption capacity was based on particle size of nanocopolymers and their surface area. The adsorption capacity increased with decreasing the particle size. On the other hand the adsorption capacity increased with increasing the surface area of the prepared nano-sized copolymers of poly(AA-co-o-PD).

show abstract

“…Synthesis of PTOL could be done by chemical oxidation of o-toluidine in presence of ammonium peroxydisulphate as a strong oxidizing agent (Cordeiro et al, 2005). It has been reported that chemically synthesized PTOL offers a polymer having very good physicochemical properties with good electrical conductivity, making it an excellent matrix for enzymes involving redox reaction (Eltaher & Khan, 2019;Melad & Jarour, 2017;Stepura et al, 2019). In previous research, PTOL serves as a good matrix for the immobilization of enzymes including an amyloglucosidase matrix.…”

Section: Introductionmentioning

confidence: 99%

Conducting Matrices of the Poly(-O-Toluidine, PTOL) Film for Immobilizing Uricase

Hermanto

Ismillayli

Zuryati

et al. 2022

molekul

View full text Add to dashboard Cite

Polyaniline, PANI as conducting polymer has been used as enzyme immobilization matrix in biosensors due to its excellent stability and electrochromic effects, conductivity, and redox reversibility. However, at pH above 4, the electron transfer ability and redox activity decrease, henceit is necessary to modify the PANI structure to increase the PANI pH range. In this study, the PANI derivative, the poly(-o-toluidine, PTOL) film was produced for the uricase immobilization matrix. This study aimed to develop a supporting material that maintains catalytic activity uricase with a facile and inexpensive procedure. The PTOL was prepared by using the chemical oxidative polymerization technique with ammonium persulfate (dissolved in 1.0 M HCl) as an oxidizing agent. The FTIR spectra confirmed the success of PTOL formation by the appearance of its characteristic peaks. The UV-Vis spectra indicated that PTOL was in an emeraldine state with a semi-crystalline structure that was shown by its XRD pattern. While, SEM analysis described that the PTOL film was uniform with some granular aggregation in its surface morphology, but there is no holes or porosity were found. The use of PTOL film as a uricase matrix could maintain the uricase activity against the substrate (uric acid, UA) with excellent analytical characteristics. Therefore, PTOL film could be used as conducting matrices for immobilizing enzymes (e.g. biosensors).

show abstract

Copolymerization of poly (o-phenylenediamine-co-o/p-toluidine) via the chemical oxidative technique: synthesis and characterization

Cited by 7 publications

References 31 publications

Copolymerization of anthranilic acid and o-phenylenediamine by a free radical in the presence of nanoparticles of copper hexacyanoferrates for the removal of cesium ions in aqueous solutions

Copolymerization of anthranilic acid and o-phenylenediamine by a free radical in the presence of nanoparticles of copper hexacyanoferrates for the removal of cesium ions in aqueous solutions

Synthesis, characterization, morphology and adsorption performance towards Cu+2 ions of nano-sized copolymers of anthranilic acid and o-phenylenediamine poly(AA-co-o-PD)

Conducting Matrices of the Poly(-O-Toluidine, PTOL) Film for Immobilizing Uricase

Contact Info

Product

Resources

About