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Mocny P, Menétrey M, Klok HA. Synthesis of Loop Poly(Methyl Methacrylate) Brushes via Chain-End Postpolymerization Modification. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01527] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Piotr Mocny
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères, École Polytechnique Fédérale de Lausanne (EPFL), Bâtiment MXD, Station 12, CH-1015 Lausanne, Switzerland
| | - Maxence Menétrey
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères, École Polytechnique Fédérale de Lausanne (EPFL), Bâtiment MXD, Station 12, CH-1015 Lausanne, Switzerland
| | - Harm-Anton Klok
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères, École Polytechnique Fédérale de Lausanne (EPFL), Bâtiment MXD, Station 12, CH-1015 Lausanne, Switzerland
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Lepoittevin B, Elzein T, Dragoe D, Bejjani A, Lemée F, Levillain J, Bazin P, Roger P, Dez I. Hydrophobization of chitosan films by surface grafting with fluorinated polymer brushes. Carbohydr Polym 2018; 205:437-446. [PMID: 30446126 DOI: 10.1016/j.carbpol.2018.10.044] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 10/12/2018] [Accepted: 10/14/2018] [Indexed: 10/28/2022]
Abstract
Chitosan with its surface-properties and biodegradability is a promising biomaterial for green packaging applications. Till now, this application is still limited due to chitosan high sensitivity to water. Some existing studies deal with the incorporation of hydrophobic additives to enhance water-proof performances of chitosan films. As these additives may impair the film properties, our study focuses on chitosan efficient hydrophobization by means of simple and successful surface grafting reactions. Chitosan films prepared by solvent casting were modified by means of surface-initiated activators regenerated by electron transfer atom radical polymerization (SI-ARGET-ATRP) of 2-hydroxyethyl methacrylate (HEMA) followed by esterification reaction with fluorinated acyl compound. X-ray photoelectron spectroscopy (XPS), attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR) and Time-of-Flight Secondary Ion Mass Spectroscopy (ToF-SIMS) highlighted the surface chemical changes after each step. Surface properties were investigated by contact angle measurements and surface energy calculations. Hydrophobic surfaces with low surface energy and good water-repellent properties were obtained using a simple handling polymerization procedure. This is the first study in applying ARGET ATRP to prepare hydrophobic biopolymer films offering potential applications in packaging.
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Affiliation(s)
- Bénédicte Lepoittevin
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) UMR 8182, Univ Paris Sud, CNRS, Université Paris-Saclay, 91405, Orsay, France; Normandy University, LCMT, UMR 6507, ENSICAEN, UNICAEN, CNRS, 14000, Caen, France.
| | - Tamara Elzein
- Lebanese Atomic Energy Commission, National Council for Scientific Research, CNRS-L, Beirut, Lebanon
| | - Diana Dragoe
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) UMR 8182, Univ Paris Sud, CNRS, Université Paris-Saclay, 91405, Orsay, France
| | - Alice Bejjani
- Lebanese Atomic Energy Commission, National Council for Scientific Research, CNRS-L, Beirut, Lebanon
| | - Frédéric Lemée
- Normandy University, LCMT, UMR 6507, ENSICAEN, UNICAEN, CNRS, 14000, Caen, France
| | - Jocelyne Levillain
- Normandy University, LCMT, UMR 6507, ENSICAEN, UNICAEN, CNRS, 14000, Caen, France
| | - Philippe Bazin
- Normandy University, LCS, UMR 6506, ENSICAEN, UNICAEN, CNRS, 14000, Caen, France
| | - Philippe Roger
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) UMR 8182, Univ Paris Sud, CNRS, Université Paris-Saclay, 91405, Orsay, France
| | - Isabelle Dez
- Normandy University, LCMT, UMR 6507, ENSICAEN, UNICAEN, CNRS, 14000, Caen, France.
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