Ultimate Guide to niedrigverseifte Polyvinylalkohole | Dofollow Social Bookmarking Sites 2016
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Polyvinylalkohole (PVA) sind eine Klasse von synthetischen Polymeren, die durch Hydrolyse von Polyvinylacetat (PVA) hergestellt werden. Sie haben eine breite Anwendung in vielen Industrien, insbesondere in der Textil-, Papier- und Lebensmittelindustrie. Niedrigverseifte Polyvinylalkohole beziehen sich auf Polyvinylalkohole, die nur einen geringen Anteil an Acetateinheiten in ihrem Molekül enthalten, was zu spezifischen physikalischen und chemischen Eigenschaften führt, die sie von höher verseiften PVA-Polymeren unterscheiden.Herstellung und chemische Struktur: Die Herstellung von PVA erfolgt durch die Hydrolyse von Polyvinylacetat, bei der die Acetateinheiten im Polymer durch Hydroxylgruppen ersetzt werden. Die Verseifungsrate, also der Anteil der Acetateinheiten, die in Hydroxylgruppen umgewandelt werden, spielt eine wichtige Rolle bei der Bestimmung der Eigenschaften des Polymers.


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