M. Kresteva scite author profile

Abstract:The melting of nascent and thermally treated super-high molecular weight polyethylene (SHMWPE) is investigated by means of differential scanning calorimetry (DSC). Higher melting temperatures and enthalpies of the nascent and annealed samples are observed. The melting temperatures and enthalpies of melt crystallized SHMWPE is lower and depends on the temperature of thermal treatment. All melting properties are explained by presuming that the lamellar structure contains a high concentration of entangled tie macromolecules in amorphous regions formed during polymerization. It was supposed that the concentration of the entanglements and the stressed tie molecules are changed with the temperature of the thermal pretreatment.

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Supermolecular structure of poly(propylene-co-ethylene)/poly(ethylene-co-vinyl acetate) blends irradiated with fast electrons. SEM, SAXS and DSC studies

Mihaylova

Nedkov

Krestev

et al. 2001

European Polymer Journal

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Positron annihilation lifetime spectroscopy studies of irradiated poly(propylene-co-ethylene)/poly(ethylene-co-vinyl acetate) blends

Misheva

Mihaylova

Djourelov

et al. 2000

Radiation Physics and Chemistry

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Melting of nascent superhigh-molecular-weight poly(ethylene oxide) obtained by means of heterogenous ion-coordinate polymerization

Nedkov

Kresteva

Mihailov

et al. 1982

Journal of Macromolecular Science, Part B

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M. Kresteva

Amphiphilic graft copolymers with poly(oxy ethylene) side chains: supermolecular structure in solid state

Melting of nascent and thermally treated super-high molecular weight polyethylene

Supermolecular structure of poly(propylene-co-ethylene)/poly(ethylene-co-vinyl acetate) blends irradiated with fast electrons. SEM, SAXS and DSC studies

Positron annihilation lifetime spectroscopy studies of irradiated poly(propylene-co-ethylene)/poly(ethylene-co-vinyl acetate) blends

Melting of nascent superhigh-molecular-weight poly(ethylene oxide) obtained by means of heterogenous ion-coordinate polymerization

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