Hybrid nanocomposites based on guanidine methacrylate monomer and polymer and layered aluminosilicates: Synthesis, structure, and properties

Khashirova, S.Yu.; Musaev, Yu. I.; Микитаев, А. К.; Malkanduev, Yu. A.; Ligidov, M. Kh.

doi:10.1134/s1560090409090085

Cited by 12 publications

(4 citation statements)

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“…The band at 1631 cm −1 corresponds to deformation vibrations of adsorbed H 2 O molecules. The band with a peak at 1048 cm –1 conforms to the Si–O–Si valence vibrations of the SiO 4 tetrahedra in the clay (Khashirova et al 2009 ; Lou et al 2015 ). The bands at 528 and 469 cm −1 assign to the bending oscillations of the Si–O–Si groups (Ramya et al 2017 ).…”

Section: Resultsmentioning

confidence: 75%

Structure, physicochemical properties, and adsorption performance of the ethyl cellulose/bentonite composite films

2022

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Ethyl cellulose (EC) was filled with bentonite (Bent) particles by mechanical dispersion to produce composite film materials that were studied using various methods. According to X-ray diffraction (XRD) analysis, the inter-chain separation length was larger in EC/Bent composite then those in pure polymer. Infrared spectrometry indicated a formation of hydrogen bonds between the hydroxyl groups of EC and the silanol groups of clay. Tests showed an increase in tensile strength of the polymer material (by 35–40%) when doped with bentonite. It was found that modification of polymer with bentonite resulted in increasing of the adsorption efficiency of methylene blue (MB): the equilibrium concentration of MB ions in adsorbent phase increased 2.5 times. The MB adsorption kinetics obeyed the pseudo-first-order mechanism. Isotherms were in good agreement with Langmuir model. For the composite, the maximum monolayer adsorption capacity was 4 times higher than that for pure polymer.

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Section: Resultsmentioning

confidence: 75%

Structure, physicochemical properties, and adsorption performance of the ethyl cellulose/bentonite composite films

2022

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“…The intense broad-band with the maximum at 1041cm -1 ranged at 1040-1080cm -1 corresponds to the Si-O-Si valence vibration of the SiO 4 . In addition, the narrow peak at 797cm -1 corresponds to the silanol group [41] and at around 600cm -1 corresponds to Si-O-Al [23]. The peak recorded at 1439cm -1 is associated with the presence of calcite in the sample [42].…”

Section: Ftir Spectramentioning

confidence: 96%

Preparation of Polypropylene/Bentonite Composites of Enhanced Thermal and Mechanical Properties using L-leucine and Stearic Acid as Coupling Agents

Mohammedi

Zoukrami

Haddaoui

2021

Eng. Technol. Appl. Sci. Res.

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The compatibilization of raw bentonite (bent) with a polymer matrix of polypropylene (PP) can improve the performance of the material in terms of thermal and mechanical properties. In this study, two kinds of untreated bentonite, bentonite-Maghnia (bent-m) and bentonite-Mostaganem (bent-M), that differ in the proportion of Al2O3 and in the particle size distribution were coupled to typical maleic anhydride grafted polypropylene PP-MA. Stearic Acid (SA) and L-leucine Amino Acid (AA) were selected as new coupling modifiers at a 5/5 ratio of bentonite/coupling agent. All PP/bent composites were prepared by melt mixing at 190°C. Morphological observation revealed a good dispersion of bentonite into the PP matrix in the presence of AA, SA, and PP-MA. Mechanical properties showed an increase in stiffness as bent-m or bent-M were associated with AA. For instance, PP/bent-m/AA composite underwent an improvement of about 13% in Young’s modulus as compared to neat PP. On the other hand, the addition of SA into bent-m maintained stiffness and tensile strength at an acceptable level. An increase of around 40°C and 37% in the decomposition temperature and elongation at break was respectively observed for the PP/bent-m/SA composite. All coupled composites showed high degradation temperatures.

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“…The band at 1650 cm -1 belongs to the deformation vibrations of the adsorbed H 2 O molecules. The intense broad band with the maximum at 1041 cm -1 corresponds to the Si-O-Si valence vibrations of the SiO 4 tetrahedra in the silicon-oxygen framework; the narrow band at 802 cm -1 corresponds to deformation vibrations of silanol groups (Khashirova et al, 2009;Parida et al, 2006).…”

Section: Ftir Analysismentioning

confidence: 99%

Effect of the bentonite filler on structure and properties of composites based on hydroxyethyl cellulose

Алексеева

Родионова

Bagrovskaya

et al. 2019

Arabian Journal of Chemistry

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Effect of the bentonite filler on structure and properties of composites based on hydroxyethyl cellulose, Arabian Journal of Chemistry (2015), doi: http://dx. AbstractGranulometric test and morphological analysis of the bentonite particles were performed using laser diffraction and low-temperature nitrogen adsorption-desorption techniques. Bentonite particles were immobilized into the hydroxyethyl cellulose matrix by mechanical dispersion, and composite films were obtained. The effect of concentration of the filling agent on structure and tensile properties of composites was revealed. Data on the nature of interaction between hydroxyethyl cellulose and bentonite after the modification of polymer was obtained by IR spectroscopy. It was found that the hydroxyethyl cellulose/bentonite composite films showed an antimicrobial effect against E. coli and Staph. aureus bacteria, as well against fungi association.

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Hybrid nanocomposites based on guanidine methacrylate monomer and polymer and layered aluminosilicates: Synthesis, structure, and properties

Cited by 12 publications

References 1 publication

Structure, physicochemical properties, and adsorption performance of the ethyl cellulose/bentonite composite films

Structure, physicochemical properties, and adsorption performance of the ethyl cellulose/bentonite composite films

Preparation of Polypropylene/Bentonite Composites of Enhanced Thermal and Mechanical Properties using L-leucine and Stearic Acid as Coupling Agents

Effect of the bentonite filler on structure and properties of composites based on hydroxyethyl cellulose

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