Spongy Gels by a Top-Down Approach from Polymer Fibrous Sponges

Shaohua Jiang, Gaigai Duan, Ute Kuhn, Michaela Mörl, Volker Altstädt, Alexander Yarin, Andreas Greiner

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

Ultralight cellular sponges offer a unique set of properties. We show here that solvent uptake by these sponges results in new gel-like materials, which we term spongy gels. The appearance of the spongy gels is very similar to classic organogels. Usually, organogels are formed by a bottom-up process. In contrast, the spongy gels are formed by a top-down approach that offers numerous advantages for the design of their properties, reproducibility, and stability. The sponges themselves represent the scaffold of a gel that could be filled with a solvent, and thereby form a mechanically stable gel-like material. The spongy gels are independent of a time-consuming or otherwise demanding in situ scaffold formation. As solvent evaporation from gels is a concern for various applications, we also studied solvent evaporation of wetting and non-wetting liquids dispersed in the sponge.

Original languageEnglish
Pages (from-to)3285-3288
Number of pages4
JournalAngewandte Chemie - International Edition
Volume56
Issue number12
DOIs
Publication statusPublished - 2017 Jan 1
Externally publishedYes

Keywords

  • electrospinning
  • gels
  • sponges

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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  • Cite this

    Jiang, S., Duan, G., Kuhn, U., Mörl, M., Altstädt, V., Yarin, A., & Greiner, A. (2017). Spongy Gels by a Top-Down Approach from Polymer Fibrous Sponges. Angewandte Chemie - International Edition, 56(12), 3285-3288. https://doi.org/10.1002/anie.201611787