Percolation-induced gel-gel phase separation in a dilute polymer network.
Nat Mater
; 22(12): 1564-1570, 2023 Dec.
Article
em En
| MEDLINE
| ID: mdl-37903925
ABSTRACT
Cosmic large-scale structures, animal flocks and living tissues can be considered non-equilibrium organized systems created by dissipative processes. Replicating such properties in artificial systems is still difficult. Herein we report a dissipative network formation process in a dilute polymer-water mixture that leads to percolation-induced gel-gel phase separation. The dilute system, which forms a monophase structure at the percolation threshold, spontaneously separates into two co-continuous gel phases with a submillimetre scale (a dilute-percolated gel) during the deswelling process after the completion of the gelation reaction. The dilute-percolated gel, which contains 99% water, exhibits unexpected hydrophobicity and induces the development of adipose-like tissues in subcutaneous tissues. These findings support the development of dissipative structures with advanced functionalities for distinct applications, ranging from physical chemistry to tissue engineering.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Polímeros
Limite:
Animals
Idioma:
En
Revista:
Nat Mater
Assunto da revista:
CIENCIA
/
QUIMICA
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Japão