Surface Functionalization with Phosphazenes: Part 6. Modification of Polyethylene-Co-Polyvinylalcohol Copolymer Surface Plates with Fluorinated Alcohols and Azobenzene Derivatives Using Chlorinated Phosphazenes as Coupling Agents

Autor: Gengembre, Leon, de Jaeger, Roger, Frère, Martine, Gleria, Mario, Mazzah, Ahmed, Milani, Roberto, Silvia, Gros
Přispěvatelé: Unité de Catalyse et Chimie du Solide - UMR 8181 (UCCS), Centrale Lille Institut (CLIL)-Université d'Artois (UA)-Centrale Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Lille, Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 (LASIRE), Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Centrale Lille Institut (CLIL), Istituto di Scienze e Tecnologie Molecolari (ISTM), Universita degli Studi di Padova-Consiglio Nazionale delle Ricerche [Roma] (CNR), Université d'Artois (UA)-Centrale Lille-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR)-Università degli Studi di Padova = University of Padua (Unipd)
Jazyk: angličtina
Rok vydání: 2008
Předmět:
Zdroj: Journal of Inorganic and Organometallic Polymers and Materials
Journal of Inorganic and Organometallic Polymers and Materials, Springer Verlag (Germany), 2008, 18 (3), pp.344-351
Journal of Inorganic and Organometallic Polymers and Materials, 2008, 18 (3), pp.344-351
ISSN: 1574-1451
1572-8870
1574-1443
Popis: International audience; In this paper we describe a two-step surface modification process of poly(ethylene-co-vinyl alc.) by exploiting hexachlorocyclophosphazene and poly(dichlorophosphazene) as coupling agents. Part of the P-Cl groups of the chlorophosphazenes is first reacted with the surface hydroxylic groups of the substrate to form covalent P-O-C bonds, the remaining being utilized for successive substitution reactions with different nucleophiles (i.e. 2,2,2-trifluoroethanol, heptadecafluorononanol and 4-hydroxyazobenzene). Modified surface properties, such as hydrophobicity improvement with fluorinated alcs. and photochromic features with the azobenzene deriv., were verified by contact angle measurements and UV-Vis spectroscopy, resp., while changes in surface compn. were demonstrated through XPS spectroscopy.
Databáze: OpenAIRE
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