An investigation of the hydrophobic property stability of grafted polymeric coatings on a cellulose material surface

Климов, В. В.; Bryuzgin, E. V.; Le, M. D.; Zelenova, E. A.; Nguyen, Tien V.; Навроцкий, А. В.; Nishide, Hiroyuki; Новаков, И. А.

doi:10.1134/s1995421216040080

Cited by 12 publications

(7 citation statements)

References 11 publications

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“…The synthesis of GMA and AlMA copolymers was performed by a free-radical mechanism similar to the previously described procedure [34]. The synthesis of copolymers was conducted in MEK for 24 h at 70 • C with a GMA:AlMA mole ratio of 2.3:1.…”

Section: Synthesis Of Gma and Alma Copolymersmentioning

confidence: 99%

Lyophilic and Sorption Properties of Chitosan Aerogels Modified with Copolymers Based on Glycidyl Methacrylate and Alkyl Methacrylates

et al. 2022

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This paper discusses the influence of the structure of copolymers based on glycidyl methacrylate and alkyl methacrylates with C6–C18 hydrocarbon side groups on the wettability and sorption properties of surface-modified chitosan aerogels. The grafting of copolymers onto the surface of aerogels was confirmed by elemental analysis, X-ray photoelectron spectroscopy, and Fourier-transform infrared spectroscopy. As a result of the modification, with an increase in the amount of the hydrocarbon substituent alkyl methacrylate, the surface of the resulting materials became hydrophobic with contact angles in the range of 146–157°. At the same time, the water absorption of the aerogels decreased by a factor of 30 compared to that for unmodified aerogels, while the sorption capacity for light oil, diesel fuel, and synthetic motor oil remained at the level of more than 30 g/g. Chitosan aerogels with grafted copolymers based on glycidyl methacrylate and alkyl methacrylates retain biodegradation capacity; however, compared to unmodified chitosan, this process has an induction period.

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Section: Synthesis Of Gma and Alma Copolymersmentioning

confidence: 99%

Lyophilic and Sorption Properties of Chitosan Aerogels Modified with Copolymers Based on Glycidyl Methacrylate and Alkyl Methacrylates

et al. 2022

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“…The synthesis of random copolymers was carried out according to the free radical polymerization similar to the method described in ref. (Klimov et al, 2016) with molar ratios for the GMA:FMA monomers = 1.0:2.…”

Section: Synthesis Of Copolymers Based On Glycidyl Methacrylate and (...mentioning

confidence: 99%

Biodegradation Control of Chitosan Materials by Surface Modification with Copolymers of Glycidyl Methacrylate and Alkyl Methacrylates

et al. 2022

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Chitosan is one of promising polymer from natural polysaccharides, which is an environmentally friendly compound from renewable raw materials. Chitosan has biodegradability, biocompatibility, and exhibits antimicrobial, antibacterial, and other activities. In this article, we report the rst use of copolymers based on glycidyl methacrylate and ( uoro)alkyl methacrylates as material surface wettability modi ers based on a chitosan, and we show that grafting of copolymers allows an increase in the hydrophobicity of lms with contact angles up to 114° and up to 154° for aerogels. The resulting chitosan aerogels have high porosity with a pore size of 100-200 µm and the pore walls are 0.6-0.7 µm-thick lm formations. Our study of lyophilic properties of modi ed chitosan substrates showed a change in the hydrophobicity of the materials as a function of length of the hydrocarbon radical in the side groups of ( uoro)alkyl methacrylates in the copolymers. Additionally, the rate of biodegradation of the resulting materials decreased with an increase in the number of hydrophobic groups in the modi er. Obtained chitosan materials with hydrophobic coatings have potential as a protective layer for wound dressings with an extended service life.

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Section: Preparation Of a Chitosan Materialsmentioning

confidence: 99%

Biodegradation Control of Chitosan Materials By Surface Modification With Copolymers of Glycidyl Methacrylate and Alkyl Methacrylates

Bryuzgin

Bryuzgina

Yartseva

et al. 2021

Preprint

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Chitosan is one of promising polymer from natural polysaccharides, which is an environmentally friendly compound from renewable raw materials. Chitosan has biodegradability, biocompatibility, and exhibits antimicrobial, antibacterial, and other activities. In this article, we report the first use of copolymers based on glycidyl methacrylate and (fluoro)alkyl methacrylates as material surface wettability modifiers based on a chitosan, and we show that grafting of copolymers allows an increase in the hydrophobicity of films with contact angles up to 114° and up to 154° for aerogels. The resulting chitosan aerogels have high porosity with a pore size of 100–200 µm and the pore walls are 0.6–0.7 µm-thick film formations. Our study of lyophilic properties of modified chitosan substrates showed a change in the hydrophobicity of the materials as a function of length of the hydrocarbon radical in the side groups of (fluoro)alkyl methacrylates in the copolymers. Additionally, the rate of biodegradation of the resulting materials decreased with an increase in the number of hydrophobic groups in the modifier. Obtained chitosan materials with hydrophobic coatings have potential as a protective layer for wound dressings with an extended service life.

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An investigation of the hydrophobic property stability of grafted polymeric coatings on a cellulose material surface

Cited by 12 publications

References 11 publications

Lyophilic and Sorption Properties of Chitosan Aerogels Modified with Copolymers Based on Glycidyl Methacrylate and Alkyl Methacrylates

Lyophilic and Sorption Properties of Chitosan Aerogels Modified with Copolymers Based on Glycidyl Methacrylate and Alkyl Methacrylates

Biodegradation Control of Chitosan Materials by Surface Modification with Copolymers of Glycidyl Methacrylate and Alkyl Methacrylates

Biodegradation Control of Chitosan Materials By Surface Modification With Copolymers of Glycidyl Methacrylate and Alkyl Methacrylates

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