Optimization of the technological parameters of the graft copolymerization of 2-hydroxyethyl methacrylate with polyvinylpyrrolidone for nickel deposition from salts

Grytsenko, Oleksandr; Naumenko, O.P.; Suberlyak, Oleh; Dulebová, Ľudmila; Berezhnyy, Bohdan

doi:10.32434/0321-4095-2019-128-1-25-32

Cited by 10 publications

(11 citation statements)

References 13 publications

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Section: вступunclassified

“…Завдяки своїм електричним, магнітним та каталітичним властивостям, у поєднанні із сорбційною здатністю для розчинників та низькомолекулярних речовин, поширення набувають композиційні гідрогелі, наповнені (нано)частинками нікелю [8][9][10][11]. Нікельнаповнені полімерні гідрогелі переважно одержують полімеризаційним наповненням [12, 13], хімічним відновленням йонів Ni 2+ у сітці полімерної матриці [10,14] та полімеризацією із одночасним осадженням частинок нікелю [8,9]. Найперспективнішими є методи, під час яких полімерна матриця формується у присутності активних частинок металу-наповнювача, а також методи, за якими отримання частинок Ni(0) відбувається у полімерній матриці або в присутності водорозчинних полімерів, що забезпечує одержання частинок нанорозміру, не забруднених продуктами окиснення, з активною поверхнею.…”

Section: вступunclassified

“…Найперспективнішими є методи, під час яких полімерна матриця формується у присутності активних частинок металу-наповнювача, а також методи, за якими отримання частинок Ni(0) відбувається у полімерній матриці або в присутності водорозчинних полімерів, що забезпечує одержання частинок нанорозміру, не забруднених продуктами окиснення, з активною поверхнею. На особливу увагу заслуговує метод полімеризації з одночасним осадженням частинок металу [8,9]. З використанням цього методу доведено можливість синтезу Ni(0)-наповнених композиційних гідрогелів на основі прищеплених кополімерів полівінілпіролідону ( ПВП) з 2-гідроксіетилметакрилатом (ГЕМА) ( ПВП-пр-пГЕМА).…”

Section: вступunclassified

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Investigation of the properties of nickel-filled copolymers of polyvinylpyrrolidone and hydrogel materials based on them

Grytsenko¹,

Suberlyak²,

Berezhnyy³

et al. 2021

CTAS

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The properties of nickel-filled copolymers of polyvinylpyrrolidone with 2-hydroxyethylmethacrylate and hydrogel materials based on them, obtained by the method of polymerization with simultaneous reduction of metal ions have been investigated. The influence of polymer-monomer composition formulation, content of metal-filler and conditions of Ni2+ reduction reaction on physico-mechanical, sorption, electrical and magnetic characteristics of obtained materials has been established. It has been found that Ni(0) particles in the composites’ structure on the basis of polyvinylpyrrolidone with 2-hydroxyethylmethacrylate copolymers demonstrate catalytic activity, particularly, in the hydrolysis process of sodium borohydride.

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Section: вступunclassified

See 1 more Smart Citation

Investigation of the properties of nickel-filled copolymers of polyvinylpyrrolidone and hydrogel materials based on them

Grytsenko¹,

Suberlyak²,

Berezhnyy³

et al. 2021

CTAS

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show abstract

“…Methods of obtaining hydrogel magnetic composites are constantly being technologically improved and refined. For example, a promising method is polymerization with simultaneous precipitation of metal, which consists in combining the processes of reduction of metal ions and the synthesis of the polymer matrix [ 30 ]. At the same time, one of the main factors influencing the choice of the field of use of FMF-filled hydrogels is the control over the size and shape of the filler particles [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

New Materials Based on Polyvinylpyrrolidone-Containing Copolymers with Ferromagnetic Fillers

et al. 2022

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The article investigates the peculiarities of the effect of ferromagnetic fillers (FMFs) of various natures (Ni, Co, Fe, FeCo, SmCo5) on the formation of the structure and properties of 2-hydroxyethylmethacrylate (HEMA) with polyvinylpyrrolidone (PVP) copolymers. The composites were characterized using FTIR-spectroscopy, SEM, DMTA, magnetometry of vibrating samples, specific electrical resistivity studies, and mechanical and thermophysical studies. The formation of a grafted spatially crosslinked copolymer (pHEMA-gr-PVP) was confirmed and it was established that the FMF introduction of only 10 wt.% into the copolymer formulation increased the degree of crosslinking of the polymer network by three times. The surface hardness of composites increased by 20–25%. However, the water content decreased by 16–18% and lay within 42–43 wt.%, which is a relatively high number. The heat resistance of dry composites was characterized by Vicat softening temperature, which was 39–42 °C higher compared to the unfilled material. It was established that the obtained composites were characterized by a coercive force of 200 kA × m−1 and induction of a magnetic field at the poles of 4–5 mT and 10–15 mT, respectively. The introduction of FMF particles into pHEMA-gr-PVP copolymers, which, in the dry state, are dielectrics, provides them with electrical conductivity, which was evaluated by the specific volume resistance. Depending on the FMF nature and content, as well as their orientation in the magnetic field, the resistance of filled materials could be regulated within 102–106 Ohm·m. Therefore, the modification of HEMA with PVP copolymers by ferromagnetic fillers of various natures provides the possibility of obtaining materials with unique predicted properties and expands the fields of their use, for instance as magnetic sorbents for various applications, as well as the possibilities associated with their being electrically conductive materials that can respond by changing of electrical conductivity, depending on various factors.

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“…The most common are methods that involve mixing composite components in the viscous-flow state of the polymer [ 14 , 15 ]. Other promising methods include metal reduction in the polymer network, adding metal during polymer synthesis and sol-gel technologies [ 16 , 17 , 18 , 19 , 20 , 21 ]. Metal-filled polymer products can be obtained using 3D printing technologies [ 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

Obtainment and Characterization of Metal-Coated Polyethylene Granules as a Basis for the Development of Heat Storage Systems

et al. 2022

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The research studied the feasibility of using copper-coated polyethylene granules as a basis for creating efficient heat storage systems. A technology for imparting catalytic properties to a polymer surface by the joint processing of polymer granules and an activator metal in a ball mill with their subsequent metallization in a chemical reducing solution is proposed. The efficiency of copper-coating a polyethylene surface is shown to be largely determined by the activation stage and the assumption regarding the mechanism of interaction of the activator metal with the polymer surface is made. To obtain different amounts of metal on the polyethylene granules, it is proposed that the method of remetallization is used. It was established that the rate of copper ion reduction depends on the number of previous coatings and is determined by the area of interaction of the metal-coated granules with the chemical reducing solution. The obtained metal-coated polyethylene granules were characterized in terms of the viability of using it as a phase transition material for a heat storage system. Using the developed installation that simulates the heat accumulator operation, it was shown that the efficiency of using metal-coated polyethylene granules to create heat storage systems is higher. The copper coating deposited on the polyethylene granules was studied using scanning electron microscopy and X-ray diffraction analysis.

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Optimization of the technological parameters of the graft copolymerization of 2-hydroxyethyl methacrylate with polyvinylpyrrolidone for nickel deposition from salts

Cited by 10 publications

References 13 publications

Investigation of the properties of nickel-filled copolymers of polyvinylpyrrolidone and hydrogel materials based on them

Investigation of the properties of nickel-filled copolymers of polyvinylpyrrolidone and hydrogel materials based on them

New Materials Based on Polyvinylpyrrolidone-Containing Copolymers with Ferromagnetic Fillers

Obtainment and Characterization of Metal-Coated Polyethylene Granules as a Basis for the Development of Heat Storage Systems

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