文献类型：期刊文献

中文题名：准聚轮烷复合薄膜的制备及其在分离领域的应用

英文题名：Preparation of Polypseudorotaxane Composite Membrane and Its Application in Separation Field

作者：禚可欣[1];丁琦伟[1];牟蔚鑫[1];闫益恺[1];陈健壮[1];林绍梁[1]

机构：[1]华东理工大学材料科学与工程学院、上海市先进聚合物材料重点实验室,上海200237

年份：2025

卷号：83

期号：6

起止页码：602

中文期刊名：化学学报

外文期刊名：Acta Chimica Sinica

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001523993500008)】；北大核心:【北大核心2023】；

基金：Supporting information for this article is available free of charge via the Internet at http://sioc-journal.cn. Project supported by the National Natural Science Foundation of China (Nos. 52325308, 52073092) and the Natural Science Foundation of Shanghai (No. 21ZR1415900) .

语种：中文

中文关键词：柱芳烃;准聚轮烷;静电喷雾;静电纺丝;复合薄膜

外文关键词：pillararene;polypseudorotaxane;electrospraying;electrospinning;composite membrane

摘要：准聚轮烷复合薄膜具有独特的刺激响应性和优异的功能可拓展性,具有重要的实际应用价值.基于1,4-二乙氧基柱[5]芳烃(DEP5A)和聚己内酯嵌段聚四氢呋喃嵌段聚己内酯(PCL-b-PTHF-b-PCL)构建出嵌段结构的准聚轮烷(PPR).通过优化聚合物浓度、柱芳烃含量、制膜湿度和溶剂等静电喷雾技术条件,成功制备出表面形貌均匀、疏水性强且对竞争性客体1,4-二溴丁烷(DBrBu)具有响应性的PPR褶皱微球薄膜.最后,通过静电纺丝和静电喷雾相结合的制膜技术,制备出PPR微球和聚苯乙烯(PS)纤维组成的复合薄膜.由于薄膜中微球/纤维复合结构为有机污染物提供了更丰富的吸附位点,该复合薄膜在水中染料吸附分离的实验中获得了良好的效果.这为智能薄膜的研究和开发提供了一种新策略.
The polypseudorotaxane(PPR)composite membrane exhibits unique stimuli-responsive properties and excellent functional extensibility,demonstrating significant practical application value,making them promising candidates for smart materials in environmental management,biomedical engineering and next-generation energy storage solutions.This study presents a systematic approach to design and fabricate advanced PPR composite membrane with tailored structures and desired performances.Firstly,a block-structured PPR was constructed by threading 1,4-diethoxy pillar[5]arene(DEP5A)macrocycles onto a triblock copolymer backbone of polycaprolactone block polytetrahydrofuran block polycaprolactone(PCL-b-PTHF-b-PCL)via host-guest interactions.Subsequently,through systematic optimization of the electrospraying parameters including polymer concentration,pillararene content,ambient humidity,and solvent selection,we successfully fabricated PPR wrinkled microsphere membrane with uniform surface morphology,strong hydrophobicity,and responsiveness to the competitive guest molecule 1,4-dibromobutane(DBrBu).To further enhance functionality,we developed composite membrane composed of PPR microspheres and polystyrene(PS)fibers by combining electrospinning and electrospraying techniques.The microsphere/fiber composite architecture provides abundant adsorption sites for organic pollutants,enabling the membrane to achieve remarkable performance in aqueous dye adsorption and separation experiments.The structural characteristics and performance advantages of composite membrane were systematically investigated through scanning electron microscopy,contact angle measurements,and UV-vis spectroscopy.The stimuli-responsive behavior was attributed to the host-guest interaction between DEP5A and the polymer chains,while the enhanced separation efficiency originated from the synergistic effects of the microsphere-fiber composite architecture.This research presents a novel strategy for the investigation and development of smart membrane.The advanced membrane-making technology opens up new possibilities for creating multifunctional separation membranes,smart coatings,and environmental remediation materials.