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Highly Flexible Electronic and Optical Films Composed of Hydrophobic and Hydrophilic Multilayers
Author(s) -
Kim Sungwoo,
Lee Bokyoung,
Kim Sanghyo,
Bang Joona,
Cho Jinhan
Publication year - 2010
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201000104
Subject(s) - cationic polymerization , materials science , ionic bonding , polyelectrolyte , dissolution , chemical engineering , polymer , adhesion , polymer chemistry , layer (electronics) , surface forces apparatus , hydrophobic effect , nanotechnology , chemistry , organic chemistry , composite material , ion , engineering
We introduce a novel and efficient strategy for producing free‐standing functional films via photo‐crosslinking and electrostatic layer‐by‐layer (LbL) assembly, which can allow the build‐up of hydrophilic multilayers onto hydrophobic surfaces. Hydrophobic multilayers were deposited on ionic substrates by a photo‐crosslinking LbL process using photo‐crosslinkable polymers. The photo‐crosslinked surface was converted to an anionic surface by excess UV light irradiation. This treatment allowed also the stable adhesion between metal electrode or cationic polyelectrolyte and hydrophobic multilayers. After dissolving the ionic substrates in water, the formed free‐standing films exhibited unique functionalities of inserted components within hydrophobic and/or hydrophilic multilayers.