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Electrodeposition of insulating poly(phenylene oxide) films with variable thickness
Author(s) -
Timmermans Marina Y.,
Mattelaer Felix,
Moitzheim Sébastien,
Clerckx Nick,
Sepulveda Alfonso,
Deheryan Stella,
Detavernier Christophe,
Vereecken Philippe M.
Publication year - 2017
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.44533
Subject(s) - materials science , polymer , phenylene , cyclic voltammetry , chemical engineering , oxide , thermal stability , conductive polymer , ellipsometry , monomer , polymer chemistry , composite material , electrode , thin film , electrochemistry , nanotechnology , chemistry , engineering , metallurgy
Ability to control key characteristics of electrodeposited polymers plays a vital role for their applications. In this work the results on tailoring the thickness of electronically insulating poly(phenylene oxide) (PPO) type polymer films have been showed. Pinhole‐free PPO films with variable thickness in the range of 10–50 nm were grown by controlling the potential applied during the electrochemical polymerization on the surface of titanium nitride (TiN) substrates. The insulating properties of the PPO film were confirmed by testing its permeability to redox species by cyclic voltammetry. Thermal stability of the PPO films with different thicknesses was investigated by in‐situ spectroscopic ellipsometry up to 400 °C in various environments. This insight is important for the optimization of the PPO anneal conditions in order to remove the residual solvent and potentially improve the polymer chains stacking. Our results provide the basis for electrodeposition of PPO films with variable thickness for diverse applications. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134 , 44533.