Composites of multiblock (segmented) aliphatic poly(ester imide) with zirconia nanoparticles: Synthesis, mechanical properties, and pervaporation behavior

Yudin, V. E.; Bugrov, Alexander N.; Диденко, А. Л.; Smirnova, V. E.; Gofman, I. V.; Кононова, С. В.; Kremnev, R. V.; Попова, Е. Н.; Svetlichnyi, V. M.; Kudryavtsev, V. V.

doi:10.1134/s1560090414060165

Cited by 19 publications

(14 citation statements)

References 13 publications

(13 reference statements)

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“…Chemical approaches to the synthesis of multiblock (segmented) copolyester-imides and copolyurethane-imides (coPUIs) are proposed in general form in previous works [23][24][25]. In these studies, macromonomers with terminal anhydride groups are used which are formed by terminating with tetracarboxylic acid dianhydrides of polyesters having terminal hydroxyl groups (in the case of copolyester-imides) or terminal isocyanate groups (in the case of copolyurethane-imides), respectively.…”

Section: Experimental Details 21 Materialsmentioning

confidence: 99%

Characterization of Multiblock (Segmented) Copolyurethane- Imides and Nanocomposites Based Thereof Using AFM, Nanotribology, and Nanoindentation Methods

Sukhanova¹,

Кузнецова²,

Lapitskaya³

et al. 2019

Atomic-Force Microscopy and Its Applications

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This chapter reviews our results on the morphology, tribological, and local mechanical property investigations of new copoly(urethane-imide)s (coPUIs) and nanocomposites based thereof using atomic force microscopy (AFM) and nanoindentation (NI) methods. AFM in the contact mode of lateral forces revealed the presence of different contrast phases on the surface of synthesized films which depends on the chemical structure of monomers used. Single-walled carbon nanotubes (SWCNTs), carbon nanofibers, graphene, tungsten disulfide and tungsten diselenide were introduced into coPUI matrices. Dependencies of microhardness and modulus of elasticity on the depth of indentation have been obtained. It was found that for each synthesized coPUI, there is only one type of carbon nanomaterials that exerts the greatest influence on their characteristics. The improvement of mechanical properties is found to mainly depend on the nature of the polymer matrix and filler. Our results showed that effective methods for improving of tribological characteristics can be either modification by SWCNTs (up to 1 wt.%) or heating at 30°C. Synthesized coPUI films and nanocomposites are very promising materials and can be used as thermoplastic elastomers for tribological applications, and their physical-mechanical properties can be controlled both by temperature and by mechanical action.

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Section: Experimental Details 21 Materialsmentioning

confidence: 99%

Characterization of Multiblock (Segmented) Copolyurethane- Imides and Nanocomposites Based Thereof Using AFM, Nanotribology, and Nanoindentation Methods

Sukhanova¹,

Кузнецова²,

Lapitskaya³

et al. 2019

Atomic-Force Microscopy and Its Applications

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show abstract

“…As a rule, the polymeric components have not been specially designed to control interactions with the other ingredients. There is also a need for a more "wholistic" design of nanocomposites, whereby both polymeric and non-polymeric components should affect as reagents in solid-phase reactions [122,123].…”

Section: Pl Sci 2018 8 X For Peer Reviewmentioning

confidence: 99%

“…Efforts have been made to influence the nature and course of this interface processes in two ways: By choosing a matrix polymer with certain functional groups [121] and surface modification of particles [37,123].…”

Section: Appl Sci 2018 8 X For Peer Review 20 Of 40mentioning

confidence: 99%

Polymer Nanocomposite Membranes

et al. 2018

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Based on the results of research works reflected in the scientific literature, the main examples, methods and approaches to the development of polymer inorganic nanocomposite materials for target membranes are considered. The focus is on membranes for critical technologies with improved mechanical, thermal properties that have the necessary capabilities to solve the problems of a selective pervaporation. For the purpose of directional changes in the parameters of membranes, effects on their properties of the type, amount and conditions of nanoparticle incorporation into the polymer matrix were analyzed. An influence of nanoparticles on the structural and morphological characteristics of the nanocomposite film is considered, as well as possibilities of forming transport channels for separated liquids are analyzed. Particular attention is paid to a correlation of nanocomposite structure-transport properties of membranes, whose separation characteristics are usually considered within the framework of the diffusion-sorption mechanism.

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“…Aromatic heterocyclic polyimides and their composites attract a great attention during the last years as perspective membrane materials [1][2][3][4][5][6]. The presence of the polar groups and water permeability make these polymers and composites on their base the promising candidates for preparation of membranes for dehydration of different types of organic solvents [2,3,[7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Influence of Water Concentration on Its Mobility in Matrimid®

et al. 2019

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Mobility of water in polyheteroarylene (Matrimid®) was simulated at 300 K and different concentrations of water (0.5 wt.%–3 wt.%). Parameters of anomalous diffusion were calculated from molecular dynamics simulations on the base of mean square displacements of water molecules. It was found that mobility of water has nonmonotonic dependence on its concentration. Lower diffusion rates at concentrations below than 1 wt.% can be attributed to the sorption of water onto the polar groups of polymer (sorption sites). Decreasing of diffusion rate with increasing of water concentration is due to the formation of clusters of water molecules, which hampers the penetration of water between polymer chains.

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Composites of multiblock (segmented) aliphatic poly(ester imide) with zirconia nanoparticles: Synthesis, mechanical properties, and pervaporation behavior

Cited by 19 publications

References 13 publications

Characterization of Multiblock (Segmented) Copolyurethane- Imides and Nanocomposites Based Thereof Using AFM, Nanotribology, and Nanoindentation Methods

Characterization of Multiblock (Segmented) Copolyurethane- Imides and Nanocomposites Based Thereof Using AFM, Nanotribology, and Nanoindentation Methods

Polymer Nanocomposite Membranes

Influence of Water Concentration on Its Mobility in Matrimid®

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