Issue 37, 2018

Highly compression-tolerant and durably hydrophobic macroporous silicone sponges synthesized by a one-pot click reaction for rapid oil/water separation

Abstract

We first report a novel and simple method for the synthesis of macroporous silicone sponges via a one-pot thiol-ene click reaction at −10 °C. The successful synthesis was confirmed by scanning electron microscopy, Fourier transform infrared spectroscopy and elemental analysis. The sponge has high porosity, low density, durable and high hydrophobicity, super-oleophilicity, good thermal insulation, and excellent compressibility (11.01 MPa at 93% strain, superior to those of all the previously reported silicone sponges) in addition to the conventional advantages of silicone such as non-flammability, excellent stability, and non-toxicity. The morphology, pore size, density, and compression properties of the sponge are also controllable by adjusting the synthesis conditions. Furthermore, the sponge could be used for rapid oil/water separation with good absorption ability, excellent reusability and separation efficiency (>99%).

Graphical abstract: Highly compression-tolerant and durably hydrophobic macroporous silicone sponges synthesized by a one-pot click reaction for rapid oil/water separation

Supplementary files

Article information

Article type
Paper
Submitted
29 Jul 2018
Accepted
22 Aug 2018
First published
28 Aug 2018

J. Mater. Chem. A, 2018,6, 18025-18030

Highly compression-tolerant and durably hydrophobic macroporous silicone sponges synthesized by a one-pot click reaction for rapid oil/water separation

J. Cao, D. Wang, P. An, J. Zhang and S. Feng, J. Mater. Chem. A, 2018, 6, 18025 DOI: 10.1039/C8TA07327A

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