Exfoliated polymer nanocomposites by in situ coprecipitation of layered double hydroxides in a polymer matrix

• Published in: Journal of applied polymer science Vol. 129; no. 3; pp. 1345 - 1349
• Main Authors: Gaume, Julien, Therias, Sandrine, Leroux, Fabrice, Rivaton, Agnès, Gardette, Jean-Luc
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 05.08.2013; Wiley; Wiley Subscription Services, Inc
• Subjects: Applied sciences; clay; Composites; Coprecipitation; degradation; Exact sciences and technology; Exfoliation; Forms of application and semi-finished materials; Hydroxides; Infrared radiation; Materials science; Nanocomposites; Optimization; photochemistry; Polymer industry, paints, wood; Polymers; Polyvinyl alcohols; Reproduction; synthesis and processing; Technology of polymers; Coating material; Chemical precipitation; degradation; Experimental study; synthesis and processing; Composite material; clay; Polyvinylalcohol; composites; Layered double hydroxide; photochemistry; Morphology; Optical properties; Preparation; Photochemical stability; Artificial ageing; Nanocomposite; Aqueous solution; Infrared spectrum; Photochemical degradation
• ISSN: 0021-8995; 1097-4628
• DOI: 10.1002/app.38831

Polyvinylalcohol (PVA) nanocomposites were prepared by a “one step” method based on the coprecipitation of layered double hydroxide (LDH) platelets in the polymer aqueous solution. The PVA/LDH nanocomposites displayed an exfoliated morphology and the concentration of LDH in the nanocomposite was evaluated by IR analysis. Moreover, it was shown that the PVA/LDH nanocomposites had an improved photostability over PVA, which makes this material a good candidate for coating applications. Further optimization will be considered to tune the polymer/LDH properties. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013