Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 3, Issue 2, Pages 124-128Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am1010892
Keywords
azobenzene; salicylideneaniline; spiropyran; surface wettability; activated ester; light-responsive surface
Funding
- FCI, POLYMAT
- IRTG [1404]
- Ministry of Education, Science and Technology [R31-10013]
- National Research Foundation of Korea [R31-2011-000-10013-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Reactive surface coatings were used as an ideal precursor coating for the fabrication of three different photop-switchable surface coatings in parallel. Different light-responsive moieties, such as azobenzene, salicylideneaniline, and spiropyran, were immobilized on glass, polycarbonate, and steel surfaces. Independent from the underlying substrate, wettability could be switched reversibly by UV irradiation. The maximum switching range was obtained after functionalization of the reactive coating with spiropyran, resulting in a contact angle difference between the two isomeric states of almost 30 degrees.
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