The volume phase transition of thermoresponsive diblock polymer (DBC) thin films is
receiving increasing attention in smart materials, due to their sensitive thickness changes
responding to environmental perturbations, such as temperature, the composition of surrounding
vapor, and the presence of salts. In this dissertation, the systematical studies
are performed, focusing on co-nonsolvency-triggered phase collapse, KCl-modulated phase
transition temperature shift and salts series driven co-nonsolvency behavior of DBC thin
films, which consists of a nonionic poly(N-isopropylmethacrylamide) (PNIPMAM) and a
zwitterionic poly(sulfobetaine) (PSB). To enable these scientific studies, neutron reflectometry,
spectral reflectometry and Fourier-transform infrared spectroscopy are mainly
used.
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The volume phase transition of thermoresponsive diblock polymer (DBC) thin films is
receiving increasing attention in smart materials, due to their sensitive thickness changes
responding to environmental perturbations, such as temperature, the composition of surrounding
vapor, and the presence of salts. In this dissertation, the systematical studies
are performed, focusing on co-nonsolvency-triggered phase collapse, KCl-modulated phase
transition temperature shift and salts series driven co...
»