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  1. No Access

    Article

    Modification of Properties of Composites Based on Ultra-High Molecular Weight Polyethylene by Creating Two-Layer Coatings with Low Molecular Weight Polyethylene on Filler Particles: Synthesis, Properties, and Application in 3D Printing by Selective Laser Sintering

    Composites with a two-layer coating consisting of ultra-high molecular weight polyethylene and a lower molecular weight high-density polyethylene are synthesized by the sequential two-step polymerization of et...

    S. S. Gusarov, O. I. Kudinova, I. A. Maklakova, N. G. Ryvkina… in Polymer Science, Series B (2023)

  2. No Access

    Article

    Modifying Effect of Polyethylene Fractions of Different Molecular Weights on the Morphology and Properties of Reactor Polymer Compositions Based on Ultrahigh Molecular Weight Polyethylene

    Reactor polymer compositions (RPCs) based on UHMWPE with Mw = 1000 kg mol–1 and low molecular weight HDPE (LMWPE) were studied. Two series of UHMWPE compositions were used to determine the influence of the molecu...

    S. S. Gostev, E. E. Starchak, T. M. Ushakova, V. G. Grinev… in Polymer Science, Series A (2023)

  3. No Access

    Article

    The Effect of Filler Type on the Mechanical Properties of Composite Materials Based on Ultra-High-Molecular-Weight Polyethylene

    The effect of the filler type (graphite nanoplates, organomodified montmorillonite, molybdenum disulphide, or shungite) on the deformation and strength properties of composite materials based on UHMWPE synthes...

    V. G. Grinev, V. G. Krasheninnikov, A. S. Zabolotnov… in Polymer Science, Series D (2018)

  4. No Access

    Article

    Effect of the zeolite support on the polymerization of propylene with immobilized ansa-zirconocene catalysts

    Anchored aluminoxanes are synthesized by the reaction of aluminum alkyls AlMe3 and Al(i-Bu)3 with water contained in the intracrystalline cavities of synthetic and natural zeolites (NaY (Si: Al = 5), HZSM-5 (Si: ...

    I. N. Meshkova, O. I. Kudinova, N. Yu. Kovaleva, V. G. Grinev… in Polymer Science Series B (2009)

  5. No Access

    Article

    Modification of polyolefins as a modern strategy to designing polyolefin materials with a new complex of properties

    Experimental data on multistage catalytic olefin polymerization processes are generalized. Such processes as the sequential homo-and copolymerization of ethylene and α-olefins; the copolymerization of ethylene...

    I. N. Meshkova, T. M. Ushakova, N. M. Gul’tseva, V. G. Grinev… in Polymer Science Series A (2008)

  6. No Access

    Article

    Polymer materials based on ethylene copolymers with substituted norbornene

    The copolymers of ethylene with 5-ethylidene-2-norbornene containing 10–65% of the cyclic comonomer have been prepared with the use of three ansa-metallocene catalysts, namely, Et[Ind]2ZrCl2-methylaluminoxane, Et...

    I. N. Meshkova, V. G. Grinev, E. V. Kiseleva, L. N. Paspopov… in Polymer Science Series A (2007)

  7. No Access

    Article

    Ethylene polymerization with catalysts on the base of Zr-cenes and methylaluminoxanes synthesized on zeolite support

    I. N. Meshkova, T. M. Ushakova, T. A. Ladygina, N. Yu. Kovaleva… in Polymer Bulletin (2000)

  8. No Access

    Article

    Influence of the catalyst matrix structure of the supported Ziegler-Natta catalysts on the homo- and copolymerization of olefins

    The vanadium catalytic complexes immobilized on the same support (aluminium hydroxide, AH) and distinguished by structure and composition have been compared for ethylene and propylene homo- and copolymerizatio...

    I. N. Meshkova, T. M. Ushakova, N. M. Gul’tseva, M. N. Larichev… in Polymer Bulletin (1997)