Artificial 3D hierarchical and isotropic porous polymeric materials

Stefan Chisca, Valentina Elena Musteata, Rachid Sougrat, Ali Reza Behzad, Suzana P. Nunes*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

Hierarchical porous materials that replicate complex living structures are attractive for a wide variety of applications, ranging from storage and catalysis to biological and artificial systems. However, the preparation of structures with a high level of complexity and long-range order at the mesoscale and microscale is challenging. We report a simple, nonextractive, and nonreactive method used to prepare three-dimensional porous materials that mimic biological systems such as marine skeletons and honeycombs. This method exploits the concurrent occurrence of the self-assembly of block copolymers in solution and macrophase separation by nucleation and growth. We obtained a long-range order of micrometer-sized compartments. These compartments are interconnected by ordered cylindrical nanochannels. The new approach is demonstrated using polystyrene-bpoly( t-butyl acrylate), which can be further explored for a broad range of applications, such as air purification filters for viruses and pollution particle removal or growth of bioinspired materials for bone regeneration.

Original languageEnglish (US)
Article numbereaat0713
JournalSCIENCE ADVANCES
Volume4
Issue number5
DOIs
StatePublished - May 11 2018

Bibliographical note

Publisher Copyright:
© 2018 The Authors.

ASJC Scopus subject areas

  • General

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