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Volume 30
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10.3390/molecules30091925
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Article

In Situ Polymerization of Long Alkyl Chain Functional Groups Enhances the Oil–Water Separation Performance of Porous Organic Polymers

by
Hongbo Zhao
1,†,
Shijie Cai
1,†,
Ruoting Hua
1,
Cong Li
2,
Chunlong Xia
2,
Bo Cui
3,
Huimin Shao
3,
Naishun Bu
1,* and
Ye Yuan
4,*
1
School of Environmental Science, Liaoning University, Shenyang 110036, China
2
Fushun Hydrological Bureau of Liaoning Province, Fushun 113005, China
3
College of Chemistry, Liaoning University, Shenyang 110036, China
4
Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
*
Authors to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Molecules 2025, 30(9), 1925; https://doi.org/10.3390/molecules30091925 (registering DOI)
Submission received: 7 April 2025 / Revised: 21 April 2025 / Accepted: 24 April 2025 / Published: 26 April 2025
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Abstract

The preparation of superhydrophobic functional materials is of great significance for applications in oil pollution control. However, the materials synthesized by traditional post-modification methods usually suffer from problems of limited active sites, uneven distribution, and susceptibility of the surface structure to external factors, which may significantly affect their superhydrophobic properties. In this study, the superhydrophobic porous organic polymer LNU-32 was successfully prepared via in situ polymerization with the introduction of green, low-surface-energy, long-alkyl-chain functional groups into the pores, which formed a “brush-like” structure on the pore surface of the polymer and effectively enhanced its hydrophobicity. The LNU-32 material exhibits excellent superhydrophobicity, with a water contact angle of more than 151°. In addition, the superhydrophobic polyester fabric prepared from LNU-32 has an oil–water separation efficiency of more than 90%. The adsorption capacity of the superhydrophobic fabric for dimethicone also reached 7.37 times its own weight. The study shows that the LNU-32 material exhibits good application potential in the field of oil–water separation, especially in the treatment of oily wastewater and oil spills.
Keywords: superhydrophobic surface; porous organic polymers; in situ polymerization; oil–water separation superhydrophobic surface; porous organic polymers; in situ polymerization; oil–water separation

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MDPI and ACS Style

Zhao, H.; Cai, S.; Hua, R.; Li, C.; Xia, C.; Cui, B.; Shao, H.; Bu, N.; Yuan, Y. In Situ Polymerization of Long Alkyl Chain Functional Groups Enhances the Oil–Water Separation Performance of Porous Organic Polymers. Molecules 2025, 30, 1925. https://doi.org/10.3390/molecules30091925

AMA Style

Zhao H, Cai S, Hua R, Li C, Xia C, Cui B, Shao H, Bu N, Yuan Y. In Situ Polymerization of Long Alkyl Chain Functional Groups Enhances the Oil–Water Separation Performance of Porous Organic Polymers. Molecules. 2025; 30(9):1925. https://doi.org/10.3390/molecules30091925

Chicago/Turabian Style

Zhao, Hongbo, Shijie Cai, Ruoting Hua, Cong Li, Chunlong Xia, Bo Cui, Huimin Shao, Naishun Bu, and Ye Yuan. 2025. "In Situ Polymerization of Long Alkyl Chain Functional Groups Enhances the Oil–Water Separation Performance of Porous Organic Polymers" Molecules 30, no. 9: 1925. https://doi.org/10.3390/molecules30091925

APA Style

Zhao, H., Cai, S., Hua, R., Li, C., Xia, C., Cui, B., Shao, H., Bu, N., & Yuan, Y. (2025). In Situ Polymerization of Long Alkyl Chain Functional Groups Enhances the Oil–Water Separation Performance of Porous Organic Polymers. Molecules, 30(9), 1925. https://doi.org/10.3390/molecules30091925

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