Amol V. Janorkar,Jared S. Cobb,John J. Correia,Valeria Zai-Rose
申请号：
US16432879
公开号：
US20190365922A1
申请日:
2019.06.05
申请国别(地区):
US
年份:
2019
代理人:
摘要：
Elastin-like polymers (ELP) are shown to demonstrate dynamic behavior atop silica, similar to visco-elastic polymer dewetting. A combination of multiple factors are shown to contribute to this behavior including the hydrophilicity of the silica preventing the adsorption of ELP, the formation of a salt layer between ELP and silica, and the ability of the silica and salt layer to hold on to minute amounts of water for prolonged periods. Further, the addition of a polyethyleneimine (PEI) block to the terminal end of ELP allows the particle radius as well as LCST to be controlled by changing any combination of polymer concentration, NaCl concentration, and pH. The addition of the PEI block also provides the ability to crosslink the copolymers and achieve a stable particle radius after formation in harsh environments.
