Your browser doesn't support javascript.
loading
Microporous Polyelectrolyte Complexes by Hydroplastic Foaming.
Liang, Zi-Xuan; Chen, Hao-Dong; Hu, Chun-Kui; Fang, Yi-Xuan; Fang, You-Peng; Lu, Chun-Xin; Wang, Jing; Mi, Li; Chen, Xia-Chao.
Afiliação
  • Liang ZX; School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China.
  • Chen HD; School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China.
  • Hu CK; School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China.
  • Fang YX; School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China.
  • Fang YP; School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China.
  • Lu CX; College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, P. R. China.
  • Wang J; Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China.
  • Mi L; College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, P. R. China.
  • Chen XC; School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China.
Langmuir ; 40(3): 1892-1901, 2024 Jan 23.
Article em En | MEDLINE | ID: mdl-38192235
ABSTRACT
Polyelectrolyte complexes (PECs) have emerged as an attractive category of materials for their water processability and some similarities to natural biopolymers. Herein, we employ the intrinsic hydroplasticity of PEC materials to enable the generation of porous structures with the aid of gas foaming. Such foamable materials are fabricated by simply mixing polycation, polyanion, and a UV-initiated chemical foaming agent in an aqueous solution, followed by molding into thin films. The gas foaming of the PEC films can be achieved upon exposure to UV illumination under water, where the films are plasticized and the gaseous products from the photolysis of foaming agents afford the formation, expanding, and merging of numerous bubbles. The porosity and morphology of the resulting porous films can be customized by tuning film composition, foaming conditions, and especially the degree of plasticizing effect, illustrating the high flexibility of this hydroplastic foaming method. Due to the rapid initiation of gas foaming, the present method enables the formation of porous structures via an instant one-step process, much more efficient than those existing strategies for porous PEC materials. More importantly, such a pore-forming mechanism might be extended to other hydroplastic materials (e.g., biopolymers) and help to yield hydroplasticity-based processing strategies.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article