Block copolymer brushes modified cotton fabric for antifouling oil-water separation materials with thermal responsiveness

IF 4.5 3区工程技术 Q1 CHEMISTRY, APPLIED Reactive & Functional Polymers Pub Date : 2024-07-31 DOI:10.1016/j.reactfunctpolym.2024.106017

Jinhui Liu , Liyun Guo , Ying Cui , Mingxu Si , Yudong Liu , Yuka Yuan , Jing Hua

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Abstract

Polymer brushes have proven to have great potential in oil-water separation but it remains a long-standing challenge to improve their operational stability and service endurance. In this work, we sequentially grafted polydimethylsiloxane (PDMS) and poly (N-isopropylacrylamide) (PNIPAM) brushes on the cotton fabric to prepare a durable and self-reparing oil-water separation film (Co@PDMS/PNIPAM). The grafting of liquid PDMS brushes significantly improved the antifouling performance through its lubricating effect thereby improving the durability. The hydrophilic and thermoresponsive PNIPAM was synthesized through a surface-initiated atom transfer radical polymerization (SI-ARGET ATRP). Co@PDMS/PNIPAM shows high flux in various oily water and bio-solution. More remarkably, Co@PDMS/PNIPAM exhibited intelligent self-repairing characteristics, and this further enhances its stability and service endurance in the application of oil-water separation. The results provide pathways to the preparation of antifouling and durable membranes in the application of water treatment, and resource recovery.

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用于防污油水分离材料的具有热响应性的嵌段共聚物刷改性棉织物

事实证明，聚合物刷在油水分离方面具有巨大潜力，但如何提高其操作稳定性和使用寿命仍是一项长期挑战。在这项工作中，我们将聚二甲基硅氧烷（PDMS）和聚（N-异丙基丙烯酰胺）（PNIPAM）刷依次接枝到棉织物上，制备出了一种耐用且具有自修复功能的油水分离膜（Co@PDMS/PNIPAM）。液态 PDMS 刷接枝通过其润滑作用显著提高了防污性能，从而改善了耐久性。通过表面引发原子转移自由基聚合（SI-ARGET ATRP）合成了亲水性和热致伸缩性 PNIPAM。Co@PDMS/PNIPAM 在各种油性水和生物溶液中都表现出很高的通量。更值得一提的是，Co@PDMS/PNIPAM 表现出了智能自修复特性，这进一步提高了其在油水分离应用中的稳定性和耐用性。这些成果为制备水处理和资源回收应用中的防污耐用膜提供了途径。

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来源期刊

Reactive & Functional Polymers 工程技术-高分子科学

CiteScore

8.90

自引率

5.90%

发文量

259

审稿时长

27 days

期刊介绍： Reactive & Functional Polymers provides a forum to disseminate original ideas, concepts and developments in the science and technology of polymers with functional groups, which impart specific chemical reactivity or physical, chemical, structural, biological, and pharmacological functionality. The scope covers organic polymers, acting for instance as reagents, catalysts, templates, ion-exchangers, selective sorbents, chelating or antimicrobial agents, drug carriers, sensors, membranes, and hydrogels. This also includes reactive cross-linkable prepolymers and high-performance thermosetting polymers, natural or degradable polymers, conducting polymers, and porous polymers. Original research articles must contain thorough molecular and material characterization data on synthesis of the above polymers in combination with their applications. Applications include but are not limited to catalysis, water or effluent treatment, separations and recovery, electronics and information storage, energy conversion, encapsulation, or adhesion.