15 Result(s)

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)

Article

Highly Filled Composite Materials Based on UHMWPE and a Mixture of Micron and Nanoscale Aluminum Particles

Highly filled (up to 90 vol %) UHMWPE composites with Al of controlled dispersed composition (micro-, nanoparticles, and their mixtures) were obtained by the polymerization filling method. The use of a mixture...

O. I. Kudinova, P. A. Nezhnyi, V. G. Grinev… in Russian Journal of Physical Chemistry B (2022)

Article

Electrical and Heat Conduction Properties of Polymerization-Filled Composites Based on Ultra-High-Molecular-Weight Polyethylene and Nano- and Micron-Sized Aluminum Particles

The electrical and heat conduction properties of polymerization-filled composites based on ultra-high-molecular-weight polyethylene and differently proportioned mixtures of aluminum micro- and nanoparticles co...

N. G. Ryvkina, P. A. Nezhnyi, O. I. Kudinova… in Russian Journal of Physical Chemistry B (2019)

Article

Composite Materials with Ultrahigh-Molecular-Weight Polyethylene and Boron Synthesized via Polymerization in situ

Composite materials made of ultrahigh-molecular-weight polyethylene (UHMWPE) and boron have been synthesized using polymerization filling (polymerization in situ), varying the boron content in a wide range fro...

I. A. Maklakova, V. G. Grinev, O. I. Kudinova… in Russian Journal of Physical Chemistry B (2018)

Article

Synthesis of isotactic polybutene-1 over titanium-magnesium catalysts with polydentate phosphine oxides as external electron donors

The polymerization of 1-butene over the TiCl₄/MgCl₂ (TMC) catalyst with the use of substituted phosphine oxides R _n P(O)(CH₂OR′)_{3 − n} (R = alkyl, R′ = methyl or ...

O. I. Kudinova, V. G. Krasheninnikov, A. A. Samoilenko… in Kinetics and Catalysis (2013)

Article

Production of nanosized aluminum powders and their application as fillers for composite materials based on ultrahigh molecular weight polyethylene (UHMWPE)

A modified levitation-in-flow Gen-Miller technique is developed to produce nanodisperse aluminum particles 40–200 nm in size with a barrier coating of controlled thickness made of aluminum oxides and (oxy)nitr...

A. N. Zhigach, N. G. Berezkina… in Bulletin of the Russian Academy of Science… (2011)

Article

On the fracture of composites based on ultrahigh-molecular-weight polyethylene and fine aluminum particles

Mechanical characteristics of polymerization filled composite materials based on ultrahigh-molecular-weight polyethylene and fine aluminum particles are studied. The prepared composites preserve their ability ...

S. L. Bazhenov, V. G. Grinev, O. I. Kudinova… in Polymer Science Series A (2010)

Article

Polydentate phosphine oxides as external electron donors for titanium-magnesium catalysts for propylene polymerization

The possibility of using R _n P(O)(CH₂OR′)_3—n (R = alkyl, R′ = methyl or acyl, n = 0–2) polydentate phosphine oxides as external electron donors for the t...

O. I. Kudinova, T. E. Kron, T. A. Ladygina, A. N. Kozhevnikov… in Kinetics and Catalysis (2010)

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)

Article

Immobilized organometallic catalysts in the catalytic polymerization of olefins

Studies in the field of supported Ziegler-Natta catalysts employed for the polymerization of olefins that were begun by works performed under the guidance of Prof. Chirkov are reviewed in brief. The developmen...

L. A. Novokshonova, I. N. Meshkova, T. M. Ushakova… in Polymer Science Series A (2008)

Article

Polydentate phosphine oxides as new electron-donor components of titanium-magnesium catalysts for the synthesis of isotactic poly(1-butene)

O. I. Kudinova, V. G. Krasheninnikov, L. A. Novokshonova, T. E. Kron… in Doklady Chemistry (2008)

Article

Olefin polymerization on immobilized zirconocene catalysts containing alkylaluminoxanes synthesized on the support surface

Ethylene and propylene polymerization on immobilized catalysts of composition MMT-H₂O/AlR₃/Zr-cene (MMT = montmorillonite) and on the corresponding homogeneous catalysts of composition Zr-cene-MAO (Zr-cene = rac-...

T. M. Ushakova, M. V. Lysova, O. I. Kudinova, T. A. Ladygina… in Kinetics and Catalysis (2007)

Article

Organophosphorus complexones as catalysts for but-1-ene polymerization

E. S. Petrov, T. E. Kron, O. I. Kudinova… in Russian Journal of General Chemistry (2007)

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)