Evaluation of surface properties of low density polyethylene (LDPE) films tailored by atmospheric pressure non-thermal plasma (APNTP) assisted co-polymerization and immobilization of chitosan for improvement of antifouling properties

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Title:	Evaluation of surface properties of low density polyethylene (LDPE) films tailored by atmospheric pressure non-thermal plasma (APNTP) assisted co-polymerization and immobilization of chitosan for improvement of antifouling properties
Authors:	Pandiyaraj, KN (Pandiyaraj, K. N.) Ramkumar, MC (Ramkumar, M. C.) Kumar, AA (Kumar, A. Arun) Padmanabhan, PVA (Padmanabhan, P. V. A.) Pichumani, M (Pichumani, M.) Bendavid, A (Bendavid, Avi) Cools, P (Cools, Pieter) De Geyter, N (De Geyter, N.) Morent, R (Morent, R.) Kumar, V (Kumar, Vinay) Gopinath, P (Gopinath, P.) Su, PG (Su, Pi-Guey) Deshmukh, RR (Deshmukh, R. R.)
Contributors:	化學工程與材料工程學系暨奈米材料研究所
Keywords:	DIELECTRIC BARRIER DISCHARGE BLOOD COMPATIBILITY 2-METHACRYLOYLOXYETHYL PHOSPHORYLCHOLINE GRAFT-COPOLYMERIZATION POLY(ETHYLENE GLYCOL) AGING BEHAVIOR CELL-ADHESION CARBON-FIBER METHACRYLATE POLYMERS
Date:	2019-01-01
Issue Date:	2019-06-25 15:54:42 (UTC+8)
Abstract:	This work describes the development of antifouling functional coatings on the surface of low density polyethylene (LDPE) films by means of atmospheric pressure non-thermal plasma (APNTP) assisted copolymerization using a mixture of acrylic acid and poly (ethylene glycol). The aim of the study was to investigate the antifouling properties of the plasma copolymerized LDPE films and the same was carried out as a function of deposition time with fixed applied potential of 14 kV. In a second stage, the plasma copolymerized LDPE films were functionalized with chitosan (CHT) to further enhance its antifouling properties. The surface hydrophilicity, structural, topographical and chemistry of the plasma copolymerized LDPE films were examined by contact angle (CA), X-ray diffraction (XRD), atomic force microscopy (AFM), Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). Coating stability was also studied in detail over a storage time of 15 days by storing in water and air. The antifouling properties of the plasma copolymerized LDPE films were examined via protein adsorption and platelet adhesion studies. CA study showed significant changes in surface wettability after the coating process. XPS and FTIR analysis proved the presence of a dense multifunctional coating and an efficient immobilization of CHT. Substantial amendments in surface topography were observed, positively enhancing the overall surface hydrophilicity. Finally, in-vitro analysis showed excellent antifouling behavior of the surface modified LDPE films.
Relation:	Materials Science and Engineering: C Volume 94, 1 January 2019, Pages 150-160
Appears in Collections:	[Department of Chemical & Materials Engineering] journal articles

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