Properties of aqueous solutions of hydroxyethyl cellulose-poly(N-vinylformamide) blends and of the related composite films

Bochek, A. M.; Shevchuk, I. L.; Гаврилова, И. И.; Нестерова, Н. А.; Panarin, E. F.; Yudin, V. E.; Gofman, I. V.; Abalov, I. V.; Lebedeva, M. F.; Kalyuzhnaya, L. M.; Лаврентьев, В. К.

doi:10.1134/s0965545x12080019

Cited by 10 publications

(5 citation statements)

References 7 publications

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“…HEC is a linear cellulose derivative of high molar mass and toughness, , which is water processable. HEC is blended with various materials, such as cellulose nanofibers, N -vinylformamide, and gluten for the production of composite films with high ductility and toughness. − …”

Section: Results and Discussionmentioning

confidence: 99%

Modular Molecular Nanoplastics

et al. 2019

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In view of their facile fabrication and recycling, functional materials that are built from small molecules (“molecular plastics”) may represent a cost-efficient and sustainable alternative to conventional covalent materials. We show how molecular plastics can be made robust and how their (nano)structure can be tuned via modular construction. For this purpose, we employed binary composites of organic nanocrystals based on a perylene diimide derivative, with graphene oxide (GO), bentonite nanoclay (NC), or hydroxyethyl cellulose (HEC), that both reinforce and enable tailoring the properties of the membranes. The hybrids are prepared via a simple aqueous deposition method, exhibit enhanced mechanical robustness, and can be recycled. We utilized these properties to create separation membranes with tunable porosity that are easy to fabricate and recycle. Hybrids 1/HEC and 1/NC are capable of ultrafiltration, and 1/NC removes heavy metals from water with high efficiency. Hybrid 1/GO shows mechanical properties akin to covalent materials with just 2–10% (by weight) of GO. This hybrid was used as a membrane for immobilizing β-galactosidase that demonstrated long and stable biocatalytic activity. Our findings demonstrate the utility of modular molecular nanoplastics as robust and sustainable materials that enable efficient tuning of structure and function and are based on self-assembly of readily available inexpensive components.

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Section: Results and Discussionmentioning

confidence: 99%

Modular Molecular Nanoplastics

et al. 2019

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“…Figure 7 shows the X-ray diffraction patterns of pure HEC and HEC/organobentonite composites. Pure HEC film shows the presence of two broad diffraction maxima (halo) centered at 2 = 9 ∘ -10 ∘ and 20 ∘ (Figure 7, pattern 1), which are typical for the semicrystalline structure of this polymer [36,37]. The absence of HEC reflection at angles smaller than 8…”

Section: Crystal Structurementioning

confidence: 97%

Effect of the Organobentonite Filler on Structure and Properties of Composites Based on Hydroxyethyl Cellulose

Алексеева

Родионова

Bagrovskaya

et al. 2017

Journal of Chemistry

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Organobentonite powder was synthesized and characterized using laser diffraction, X-ray diffraction, low-temperature nitrogen adsorption-desorption technique, and dynamic light scattering. Obtained powder was found as material with mesopores. The organobentonite particles were larger than pure bentonite one. Hydroxyethyl cellulose (HEC) was filled with organobentonite particles by mechanical dispersion, and produced composite films were researched by the number of methods. New data relating to structure, tensile properties, and antimicrobial activity of HEC/organobentonite composites were obtained. Using results of Xray diffraction, the reflections assigned to crystal filler in polymer material were proved. Concentration effect of the filling agent on tensile properties of composite film was revealed. Data of infrared (IR) spectrometry indicated a decrease in the density of hydrogen-bond net in HEC/organobentonite composite as compared with pristine HEC. Using microbiological tests, it was found that the HEC/organobentonite films exhibited bacteriostatic action against S. aureus and fungistatic action against molds.

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“…This characteristic peak is assigned to the (001) plane in a good agreement with a reference pattern for montmorillonite . Pure HOEC film shows the presence of the broad diffraction peaks centered at 2θ=9°-10° and 20° (curve 2), which are typical for the semi-crystalline structure of this polymer (Bochek et al, 2012, Luo et al, 2008. The absence of HOEC reflection at angles smaller than 8° allows one to detect structural changes of bentonite in the composite film.…”

Section: Structure Research Of the Hoec/bentonite Compositesmentioning

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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Properties of aqueous solutions of hydroxyethyl cellulose-poly(N-vinylformamide) blends and of the related composite films

Cited by 10 publications

References 7 publications

Modular Molecular Nanoplastics

Modular Molecular Nanoplastics

Effect of the Organobentonite Filler on Structure and Properties of Composites Based on Hydroxyethyl Cellulose

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

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