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Diffuse color patterning using blended electrochromic polymers for proof‐of‐concept adaptive camouflage plaques
Author(s) -
Brooke Robert,
Fabretto Manrico,
Pering Samuel,
Switalska Eliza,
Reeks Lachlan,
Evans Drew,
Murphy Peter
Publication year - 2015
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.42158
Subject(s) - electrochromism , materials science , polymerization , monomer , polymer , camouflage , electrochromic devices , chemical engineering , optoelectronics , polymer chemistry , electrode , computer science , composite material , chemistry , artificial intelligence , engineering
A study using three different pairs of electrochromic polymers (ECPs) synthesized onto plaques by means of a modified vapor phase polymerization (VPP) technique is presented. Restriction of the respective polymerization times, allowed both faster and slower polymerizing monomers to be controlled, and produced blended plaques with visually diffuse interfaces. The ECPs within the blended plaques retain their individual electrochromic behavior and when encapsulated into an electrochromic device, show outstanding optical switching performance with little degradation evident over 10,000 cycles, coupled with a switching time of the order of 1 second. Blends also allow multiple diffuse color changes within an electrochromic device, due to the difference in oxidation potentials of the individual ECPs, making them candidates for adaptive camouflage use. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 42158.