PMID- 30446126 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20181119 LR - 20181119 IS - 1879-1344 (Electronic) IS - 0144-8617 (Linking) VI - 205 DP - 2019 Feb 1 TI - Hydrophobization of chitosan films by surface grafting with fluorinated polymer brushes. PG - 437-446 LID - S0144-8617(18)31233-5 [pii] LID - 10.1016/j.carbpol.2018.10.044 [doi] AB - 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. CI - Copyright (c) 2018 Elsevier Ltd. All rights reserved. FAU - Lepoittevin, Benedicte AU - Lepoittevin B AD - Institut de Chimie Moleculaire et des Materiaux d'Orsay (ICMMO) UMR 8182, Univ Paris Sud, CNRS, Universite Paris-Saclay, 91405, Orsay, France; Normandy University, LCMT, UMR 6507, ENSICAEN, UNICAEN, CNRS, 14000, Caen, France. Electronic address: benedicte.lepoittevin@ensicaen.fr. FAU - Elzein, Tamara AU - Elzein T AD - Lebanese Atomic Energy Commission, National Council for Scientific Research, CNRS-L, Beirut, Lebanon. FAU - Dragoe, Diana AU - Dragoe D AD - Institut de Chimie Moleculaire et des Materiaux d'Orsay (ICMMO) UMR 8182, Univ Paris Sud, CNRS, Universite Paris-Saclay, 91405, Orsay, France. FAU - Bejjani, Alice AU - Bejjani A AD - Lebanese Atomic Energy Commission, National Council for Scientific Research, CNRS-L, Beirut, Lebanon. FAU - Lemee, Frederic AU - Lemee F AD - Normandy University, LCMT, UMR 6507, ENSICAEN, UNICAEN, CNRS, 14000, Caen, France. FAU - Levillain, Jocelyne AU - Levillain J AD - Normandy University, LCMT, UMR 6507, ENSICAEN, UNICAEN, CNRS, 14000, Caen, France. FAU - Bazin, Philippe AU - Bazin P AD - Normandy University, LCS, UMR 6506, ENSICAEN, UNICAEN, CNRS, 14000, Caen, France. FAU - Roger, Philippe AU - Roger P AD - Institut de Chimie Moleculaire et des Materiaux d'Orsay (ICMMO) UMR 8182, Univ Paris Sud, CNRS, Universite Paris-Saclay, 91405, Orsay, France. FAU - Dez, Isabelle AU - Dez I AD - Normandy University, LCMT, UMR 6507, ENSICAEN, UNICAEN, CNRS, 14000, Caen, France. Electronic address: isabelle.dez@ensicaen.fr. LA - eng PT - Journal Article DEP - 20181018 PL - England TA - Carbohydr Polym JT - Carbohydrate polymers JID - 8307156 OTO - NOTNLM OT - Chitosan OT - Fluoropolymers OT - Polymer brush OT - Surface-initiated ARGET-ATRP OT - ToF-SIMS EDAT- 2018/11/18 06:00 MHDA- 2018/11/18 06:01 CRDT- 2018/11/18 06:00 PHST- 2018/07/23 00:00 [received] PHST- 2018/10/12 00:00 [revised] PHST- 2018/10/14 00:00 [accepted] PHST- 2018/11/18 06:00 [entrez] PHST- 2018/11/18 06:00 [pubmed] PHST- 2018/11/18 06:01 [medline] AID - S0144-8617(18)31233-5 [pii] AID - 10.1016/j.carbpol.2018.10.044 [doi] PST - ppublish SO - Carbohydr Polym. 2019 Feb 1;205:437-446. doi: 10.1016/j.carbpol.2018.10.044. Epub 2018 Oct 18.