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The prediction of the long-term photoageing of solid polymers

✍ Scribed by J. Lemaire; R. Arnaud; J. Lacoste

Publisher: John Wiley and Sons
Year: 1988
Tongue: English
Weight: 556 KB
Volume: 39
Category: Article
ISSN: 0323-7648
DOI: 10.1002/actp.1988.010390106

No coin nor oath required. For personal study only.

✦ Synopsis

A "mechanistic" approach for the prediction of the fate of solid polymeric material ageing outdoors based on artificial accelerated photoageing experiments is proposed. This methodology requires the definition of relevant experimental conditions and the control, a t the molecular scale, of the chemical evolution of the polymer sample. Relevancy criteria are discussed and the chemical evolutions of polyolefins homopolymers and copolymers are described as examples of mechanistic control.

Die Vorhersage der Langzeit-Photoalterung oon festen Polymeren

Einc mcchanistisclie Naherung fur die Vorhersage des Verhaltens von festen polymeren Stoffen bei der Alterung wird vorgcschlagen. Das Verfahren basiert auf Versuchen zur kiinstlich beschleunigten Photoalterung. Die Methode erfordcrt die Festlegung relevanter experimenteller Bedingungen und die Kontrolle der auf molekularer Ebene ablaufenden cliernischen Anderungen der Probe. Die Rclevanzkriterien werden diskutiert, und

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