A monolithic anti-freezing hydro/organo Janus actuator with sensitivity to the polarity of solvents.

ABSTRACT: Hydrogels with bilayer structures, known as actuators, have attracted increasing attention in recent years due to their sophisticated intellectual functions such as pine-cone-like bending and pod-like twisting in response to temperature, light, pH, special solvents etc. Herein, we synthesized a monolithic hydro/organic actuator by a direct one-step interfacial-incompatible polymerization of hydrophilic and hydrophobic vinyl macromolecular monomers, PEGMA and PPGMA, which were dissolved in water and ethyl acetate solutions, respectively. We found that the hydro/organo actuator exhibited directional, bidirectional, and site-specific bending behaviour under a single stimulus. In water and non-polar organic solvents, the hydro/organo actuator exhibited opposite bending behaviour as expe

SUBMITTER: Fang C 

PROVIDER: S-EPMC9087327 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature