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Dive into the research topics where Josef Kovář is active.

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Featured researches published by Josef Kovář.


European Polymer Journal | 1992

Effect of the composition and properties of components on the phase structure of polymer blends

Ivan Fortelny; Josef Kovář

Abstract The dependence of phase structure on composition was investigated for two types of polypropylene/ethylene-propylene elastomer blends differing in rheological properties of the components. It was found that neither the empirical rule regarding the effect of the ratio of viscosities of the components on the ratio of their volume fractions at which the inversion of phases takes place nor Van Oenes theory regarding the effect of elastic properties of the components on phase structure of the blend is generally valid.


Angewandte Makromolekulare Chemie | 1988

Effect of the viscosity of components on the phase structure and impact strength of polypropylene/ethylene‐propylene elastomer blends

Ivan Fortelný; Danuše Kamenická; Josef Kovář


Angewandte Makromolekulare Chemie | 1985

The structure of blends of polyethylene and polypropylene with EPDM elastomer

Ivan Fortelný; Josef Kovář; Antonín Sikora; Drahomíra Hlavatá; Zdeněk Kruliš; Zuzana Nováková; Z. Pelzbauer; Cbreve; Pavel efelín


Angewandte Makromolekulare Chemie | 1990

The effect of conditions of mixing of polypropylene/ethylene-propylene elastomer blends on their morphological structure and impact strength

Ivan Fortelný; Danuše Michálková; Jaroslava Koplíková; Edita Navrátilová; Josef Kovář


Angewandte Makromolekulare Chemie | 1991

The effect of viscosity of polyethylene on the evolution of phase structure during the mixing of polypropylene/EPDM elastomer/polyethylene blends

Ivan Fortelný; Edita Navrátilová; Josef Kovář


Macromolecular Chemistry and Physics | 1977

Notes on the determination of unperturbed dimensions of stiff chain polymers by hydrodynamic methods

Josef Kovář; Ivan Fortelný; M. Bohdanecký


Acta Polymerica | 1989

The effect of composition, processing and morphology on mechanical properties of polypropylene/ethylene‐propylene rubber/polyethylene blends

Z. Kruliš; J. Kolařík; Ivan Fortelný; P. Čefelín; Josef Kovář


Macromolecular Chemistry and Physics | 1975

A study of branching in polyphenylsilasesquioxane chains by hydrodynamic and light-scattering methods

Josef Kovář; Libuše Mrkvičková‐Vaculová; M. Bohdanecký


Journal of Polymer Science Part B | 1981

The effect of polydispersity on the intrinsic viscosity and sedimentation coefficient of stiff chains

Ivan Fortelný; Josef Kovář; A. Živný; M. Bohdanecký


Collection of Czechoslovak Chemical Communications | 1979

Comments on the concentration-dependence of the viscosity of solutions of discrete particles in a homogeneous continuum

Josef Kovář; M. Bohdanecký

Collaboration


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Ivan Fortelný

Czechoslovak Academy of Sciences

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M. Bohdanecký

Czechoslovak Academy of Sciences

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Edita Navrátilová

Czechoslovak Academy of Sciences

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A. Živný

Czechoslovak Academy of Sciences

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Antonín Sikora

Czechoslovak Academy of Sciences

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Cbreve

Czechoslovak Academy of Sciences

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Danuše Kamenická

Czechoslovak Academy of Sciences

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Danuše Michálková

Czechoslovak Academy of Sciences

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Drahomíra Hlavatá

Czechoslovak Academy of Sciences

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Ivan Fortelny

Czechoslovak Academy of Sciences

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