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Permeation‐resistant and flexible plasma‐polymerised films on 2‐hydroxyethyl methacrylate hydrogels
Author(s) -
Rout Bishakh,
GirardLauriault PierreLuc
Publication year - 2021
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.202000191
Subject(s) - self healing hydrogels , permeation , aqueous solution , chemical engineering , materials science , methacrylate , polymer , plasma polymerization , polymer chemistry , polymerization , x ray photoelectron spectroscopy , scanning electron microscope , chemistry , membrane , composite material , organic chemistry , biochemistry , engineering
This study focuses on the deposition of plasma polymer films (PPFs) on hydrogels that could act as permeation barriers for aqueous species. The deposited PPFs on hydrogels were studied in terms of their ability to resist the permeation of an aqueous dye molecule after 24‐h exposure to an aqueous solution and mechanical stress. Permeation of the dye toluidine blue O through the hydrogels after plasma polymerisation was at least 75% less than that through an untreated hydrogel. The X‐ray photoelectron spectroscopy analysis showed introduction of O‐ and N‐rich chemical functionalities in the surface chemical composition of the hydrogel after plasma polymerisation. Scanning electron microscope imaging pointed out that milder plasma conditions result in uniform films that do not degrade upon exposure to water or mechanical stress.