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Hyperbranched polymers: unique design tool for coatings

Polymères hyperbranchés: outil de conception unique pour les revêtements

Extrem verzweigte Polymere: ein einzigartiges Hilfsmittel für den Entwurf neuer Lacke und Anstriche

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Surface Coatings International Part B: Coatings Transactions

Summaries

Hyperbranched polymers are a new class of polymeric material belonging to the group of macromolecules with highly branched structures and a large number of end groups. The structure of these polymers has a great impact on their physical and chemical properties. Many commercially-available chemicals can be used as the monomers in these systems, which should extend the availability and accessibility of hyperbranched polymers with various new end groups, architectures and properties. Because of their unique behaviour, hyperbranched polymers are suitable for a wide range of applications, especially for coatings.

This paper provides a concise review on molecular architecture and a general outline of methods to synthesise hyperbranched polymers and summarises their physico-chemical properties. The hyperbranched concept is discussed in terms of preparative methods, applications and advantages with respect to polymers for coatings. Hyperbranched polyesters, alkyds, epoxies, polyacrylates and siloxanes are discussed. Examples for other polymers such as polyurea, polyurethane dispersions (PUDs) and polyamides are also given.

Résumé

Les polymères hyperbranchés forment une nouvelle classe de matériau polymérique qui fait partie du groupe de macromolécules ayant une structure très branchée et beaucoup de groupes terminaux. La structure de ces polymères a un grand impact sur leurs propriétês physiques et chimiques. Beaucoup de produits qui sont disponibles dans le commerce peuvent être utilisés comme monomères dans ces systèmes qui devraient augmenter la disponibilité et l’accessibilité des polymères hyperbranchés ayant des groupes terminaux, une architecture et des propriétés nouveaux et variés. À cause de leur comportement unique, les polymères hyperbranchés sont convenables pour une grande variété d’applications, surtout pour les revétements.

Cet article fournit une étude concise d’architecture molaire et un résumé général des méthodes employées pour synthétiser les polymères hyperbranchés, aussibien qu’un résumé de leurs propriétés physico-chimiques. La conception « hyperbranché » est discutée vis-à-vis de méthodes de préparation, applications, et avantages réalisés dans le domaine des polymères pour revétements. Les alkydes, les époxies, les polyacrylates, et les siloxanes et les polyesters hyperbranchés sont discutés. On donne aussi des exemples ayant rapport à d’autres polymères tels que la polyurée, les dispersions polyuréthane (PUDs), et les polyamides.

Zusammenfassung

Extrem verzweigte Polymere sind eine neue Klasse von Polymermaterialien aus der Gruppe der Makromoleküle mit stark verzweigten Strukturen und vielen Endgruppen. Die Struktur dieser Polymere hat einen großen Einfluss auf ihre physikalischen und chemischen Eigenschaften. Viele kommerziell erhältliche Chemikalien können als Monomere in diesen Systemen verwendet werden, was die Erhältlichkeit von extrem verzweigten Polymeren mit neuen Endgruppen, Architekturen und Eigenschaften verbessern solite. Dank ihres einzigartigen Verhaltens sind extrem verzweigte Polymere für eine breite Palette von Anwendungen geeignet, insbesondere für Farben und Lacke.

Diese Arbeit vermittelt eine übersicht der molekularen Architekturen von extrem verzweigten Polymeren und präsentiert die allgemeinen Synthesemethoden und ihre physio-chemischen Eigenschaften. Das Konzept der Extremver zweigung wird mit Hinsicht auf Her stellungsmethoden. Applikationen und Vorteilen gegenüber anderen Polymeren für die Lackproduktion diskutiert Wit stellen extrem verzweigte Polyester, Alkyde. Epoxide, Polyacrylate und Siloxane vor, und geben Beispiele anderer Polymere wie Polyharnstoffe. Polyurethandispersionen (PUDs) und Polyamide.

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  1. Asian Paints (India) Ltd, L B S Marg, Bhandup, 400 078, Mumbai, India

    PN Mehta

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Mehta, P. Hyperbranched polymers: unique design tool for coatings. Surface Coatings International Part B: Coatings Transactions 89, 333–342 (2006). https://doi.org/10.1007/BF02765586

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