Vzájemné vztahy mezi zpracováním, strukturou a degradačním chováním izotaktického polypropylenu

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F07%3A63505548" target="_blank" >RIV/70883521:28110/07:63505548 - 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 Processing, Structure and Degradability of Isotactic Polypropylene

Popis výsledku v původním jazyce

This work focuses on the interrelations between the processing, structure and degradability of isotactic polypropylene (iPP). The structure evolution in the material during processing and also during UV-irradiation is characterized on the molecular, supermolecular and microscopic levels. Special attention is devoted to individual crystalline phases of iPP and their structural transformations; lamellar, fibrillar and eventually spherulitic morphologies are carefully characterised. Specimens are preparedunder controlled crystallization (processing) conditions and specific &#945;- and &#946;-nucleating agents are applied. A strong effect of crystallization temperature and content of &#946;-nucleating agent on &#946;-phase formation is observed. The addition of &#945;-nucleating agent causes the formation of very fine spherulitic structure of &#945;-phase even if the &#946;-nucleating agent is present in the material. The UV-exposure leads to the incorporation of carbonyl grou

Název v anglickém jazyce

The Interrelations between Processing, Structure and Degradability of Isotactic Polypropylene

Popis výsledku anglicky

This work focuses on the interrelations between the processing, structure and degradability of isotactic polypropylene (iPP). The structure evolution in the material during processing and also during UV-irradiation is characterized on the molecular, supermolecular and microscopic levels. Special attention is devoted to individual crystalline phases of iPP and their structural transformations; lamellar, fibrillar and eventually spherulitic morphologies are carefully characterised. Specimens are preparedunder controlled crystallization (processing) conditions and specific &#945;- and &#946;-nucleating agents are applied. A strong effect of crystallization temperature and content of &#946;-nucleating agent on &#946;-phase formation is observed. The addition of &#945;-nucleating agent causes the formation of very fine spherulitic structure of &#945;-phase even if the &#946;-nucleating agent is present in the material. The UV-exposure leads to the incorporation of carbonyl grou

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

2007

Kód důvěrnosti údajů

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