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Controlling Contact Electrification with Photochromic Polymers
Author(s) -
Friedle Simone,
Thomas Samuel W.
Publication year - 2010
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201003985
Subject(s) - photochromism , polymer , irradiation , contact electrification , electrification , sign (mathematics) , materials science , computer science , photochemistry , optoelectronics , chemistry , nanotechnology , physics , electrical engineering , composite material , engineering , nuclear physics , mathematics , electricity , mathematical analysis , triboelectric effect
Charge switching : Control of contact electrification was achieved using a combination of photoreactive polymers and light. Upon UV irradiation, polymers substituted with photochromic spiropyrans reversibly switch their rate, and depending on chemical structure, their sign of charging by contact electrification (see picture). Consistent with empirical predictions, these photochromic polymers tended to charge positively upon irradiation with UV light.