THE INTERRELATIONS BETWEEN SUPERMOLECULAR STRUCTURE, PROPERTIES AND DEGRADABILITY OF ISOTACTIC POLY(1-BUTENE)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F09%3A63508206" target="_blank" >RIV/70883521:28110/09:63508206 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

THE INTERRELATIONS BETWEEN SUPERMOLECULAR STRUCTURE, PROPERTIES AND DEGRADABILITY OF ISOTACTIC POLY(1-BUTENE)

Popis výsledku v původním jazyce

This work is focused on the interrelations between supermolecular structure, properties and degradability of isotactic poly(1-butene) (PB-1). The most important evolution in PB-1 is a peculiar phase transformation from form II to form I after crystallization from melt. This phase transformation can be followed using calorimetry, wide-angle X-ray scattering and mechanical testing where changes in dependence on annealing conditions and time are observed. The effect of processing on resulting supermolecular structure is proven on injection-molded and extruded specimens using tensile testing. Because of high sensitivity of PB-1 to photodegradation, significant effects on thermal properties and the phase transformation is observed. Multiscale characterization is performed using calorimetric measurements, infra-red spectroscopy, rheology, X-ray scattering, microscopic techniques and tensile testing to describe consequences of photodegradation. Comparison of the PB-1 exposed to natural weathe

Název v anglickém jazyce

THE INTERRELATIONS BETWEEN SUPERMOLECULAR STRUCTURE, PROPERTIES AND DEGRADABILITY OF ISOTACTIC POLY(1-BUTENE)

Popis výsledku anglicky

This work is focused on the interrelations between supermolecular structure, properties and degradability of isotactic poly(1-butene) (PB-1). The most important evolution in PB-1 is a peculiar phase transformation from form II to form I after crystallization from melt. This phase transformation can be followed using calorimetry, wide-angle X-ray scattering and mechanical testing where changes in dependence on annealing conditions and time are observed. The effect of processing on resulting supermolecular structure is proven on injection-molded and extruded specimens using tensile testing. Because of high sensitivity of PB-1 to photodegradation, significant effects on thermal properties and the phase transformation is observed. Multiscale characterization is performed using calorimetric measurements, infra-red spectroscopy, rheology, X-ray scattering, microscopic techniques and tensile testing to describe consequences of photodegradation. Comparison of the PB-1 exposed to natural weathe

Druh

O - Ostatní výsledky

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů