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Modification of Polyurethane Sponge Based on the Thiol–Ene Click Reaction and Its Application for Oil/Water Separation

by 1, 1, 1 and 1,2,3,*
1
College of Life Science, College of Textile and Garment, Shaoxing University, Shaoxing 312000, China
2
Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province, Shaoxing University, Shaoxing 312000, China
3
Zhejiang Sub-center of National Carbon Fiber Engineering Technology Research Center, Shaoxing 312000, China
*
Author to whom correspondence should be addressed.
Polymers 2019, 11(12), 2072; https://doi.org/10.3390/polym11122072
Received: 20 October 2019 / Revised: 29 November 2019 / Accepted: 9 December 2019 / Published: 12 December 2019
(This article belongs to the Section Polymer Applications)
A polyurethane (PU) sponge with hydrophobic/oleophilic property was prepared based on the thiol–ene click reaction, which was a simple method with only one step. Photopolymerization was induced through UV light on the sponge surface in a homogeneous solution containing polyethylene glycol diacrylate, pentaerythritol (mercaptoacetic acid) ester, 2-hydroxy-4′-(2-hydroxyethoxy)-2-methylpropiophenone, and octadecyl methacrylate. The as-prepared sponge possessed excellent selective for oil from various types of oil/water mixtures. It also had a high absorption capacity for toluene, >21 times its self-weight, and it had about 20 times its self-weight for vegetable oil, even after five extrusion–adsorption cycles, presenting a good recyclability. It created a new method to prepare oil/water separation sponge. View Full-Text
Keywords: PU sponge; functional; pollution technology; oil/water separation PU sponge; functional; pollution technology; oil/water separation
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MDPI and ACS Style

Liang, L.; Dong, Y.; Liu, Y.; Meng, X. Modification of Polyurethane Sponge Based on the Thiol–Ene Click Reaction and Its Application for Oil/Water Separation. Polymers 2019, 11, 2072.

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