title: Flexible and Actuating Nanoporous Poly(Ionic Liquid)-Paper-Based Hybrid Membranes.
abstract: Porous and flexible actuating materials are important for the development of smart systems. We report here a facile method to prepare scalable, flexible actuating porous membranes based on a poly(ionic liquid)-modified tissue paper. The targeted membrane property profile was based on synergy of the gradient porous structure of a poly(ionic liquid) network and flexibility of a tissue paper. The gradient porous structure was built through an ammonia-triggered electrostatic complexation of a poly(ionic liquid) with poly(acrylic acid), which were previously impregnated inside the tissue paper. As a result, these porous membranes undergo deformation by bending in response to organic solvents in the vapor or liquid phase and can recover their shape in air, which demonstrates their ability to serve as solvent sensors. Besides, they show enhanced mechanical properties due to the introduction of mechanically flexible tissue paper that allows the membranes to be designed as new responsive textiles and contractile actuators.
authors.forename: Huijuan
authors.initials: H
authors.lastname: Lin
authors.forename: Jiang
authors.identifier: http://orcid.org/0000-0003-4184-6427
authors.initials: J
authors.lastname: Gong
authors.forename: Han
authors.initials: H
authors.lastname: Miao
authors.forename: Ryan
authors.initials: R
authors.lastname: Guterman
authors.affiliation: School of Materials Science and Engineering, Jiangsu University , 212013 Zhenjiang, Jiangsu, China.
authors.forename: Haojie
authors.initials: H
authors.lastname: Song
authors.forename: Qiang
authors.initials: Q
authors.lastname: Zhao
authors.forename: John W C
authors.identifier: http://orcid.org/0000-0003-2741-6383
authors.initials: JWC
authors.lastname: Dunlop
authors.affiliation: Department of Chemistry and Biomolecular Science & Center for Advanced Materials Processing, Clarkson University , 8 Clarkson Avenue, Potsdam, New York 13699, United States.
authors.forename: Jiayin
authors.initials: J
authors.lastname: Yuan
keywords: complex motion; flexibility; poly(ionic liquid); porous actuator; tissue paper