TiO2‐Oligoaldaramide nanocomposites as efficient core‐shell systems for wood preservation. Issue 23 (18th February 2015)

• Record Type: Journal Article
• Authors: Oliva, Rosangela; Salvini, Antonella; Di Giulio, Giuseppina; Capozzoli, Laura; Fioravanti, Marco; Giordano, Cristiana; Perito, Brunella
• Is Part Of: Journal of applied polymer science. Volume 132:Issue 23(2015:Dec. 05)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2015-02-18
• Subjects: Polymers -- Periodicals; Polymerization -- Periodicals; 668.9
• DOI: 10.1002/app.42047
• Languages: English
• ISSNs: 0021-8995

Abstract

<abstract abstract-type="main"> <title>ABSTRACT</title> <p>Homogeneous core‐shell systems were obtained with a growth, in controlled steps, of several oligoamides on TiO₂ nanoparticles. Derivatives of natural compounds, such as <sc>l</sc>‐tartaric acid and α, α′‐trehalose, were used as diesters in the polycondensation reactions with ethylenediamine. TiO₂ anatase was chosen because of its high photo‐activity and its antimicrobial activity. The TiO₂ nanoparticles had been previously activated then functionalized using two different coupling agents, and finally, the TiO₂‐oligoamide nanocomposites were synthesized using two synthetic pathways. The final products were characterized by ¹H NMR, ¹³C NMR, FT‐IR, and transmission electron microscope. These nanocomposites can show improved properties in comparison with the single components (TiO₂ nanoparticles or oligoamides), which are useful in many fields, such as antimicrobial coatings for surfaces in cultural heritage conservation. A nanocomposite (TiO₂‐polyethylenetartaramide) was used for applicative studies, and it has shown a good efficacy against fungal attack by <italic>Trametes versicolor</italic> on wood specimens (<italic>Fagus sylvatica</italic>). © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. <bold>2015</bold>, <italic>132</italic>, 42047.</p> </abstract>