Kinetics of Controlled Transfer of Water Molecules Between Light- and Thermo- Responsive Polymer Layers in Films
We want to investigate the kinetics of a controlled transfer of water molecules between light- and thermo- responsive polymer layers in films under external stimuli as monitored by in-situ neutron reflectivity (NR). A Si substrate is coated with one light-responsive copolymer P(Azo-co-OEGMA500) layer. To avoid the influence of the thermo-responsive units, we have selected OEGMA500 with a TT of 80 oC. Above the P(Azo-co-OEGMA500) layer, a second thermo-responsive polymer poly(triethylene glycol methyl ether methacrylate), abbreviated as PMEO3MA, layer is coated. At the instrument D17 we are able to follow the kinetics of the controlled transfer of water molecules between light- and thermo- responsive polymer layers by neutron reflectivity with a time resolution better than 10 seconds! Deuterated water (D2O) is used to achieve a high contrast.
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MUELLER BUSCHBAUM Peter; CUBITT Robert; Christina Geiger; Lucas Philipp Kreuzer; REITENBACH Julija; SAERBECK Thomas; Vagias, Apostolos; WANG Peixi and ZHONG Qi. (2021). Kinetics of Controlled Transfer of Water Molecules Between Light- and Thermo- Responsive Polymer Layers in Films. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-11-1956
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