Maciejewska Małgorzata, Józwicki Mateusz
Department of Polymer Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Skłodowska University in Lublin, Gliniana 33, 20-614 Lublin, Poland.
Materials (Basel). 2023 Mar 25;16(7):2610. doi: 10.3390/ma16072610.
Porous materials can be found in numerous essential applications. They are of particular interest when, in addition to their porosity, they have other advantageous properties such as thermal stability or chemical diversity. The main aim of this study was to synthesize the porous copolymers of 9,10-bis(methacryloyloxymethyl)anthracene (BMA) with three different co-monomers divinylbenzene (DVB), ethylene glycol dimethacrylate (EGDMA) and trimethylpropane trimethacrylate (TRIM). They were synthesized via suspension polymerization using chlorobenzene and toluene served as porogenic solvents. For the characterization of the synthesized copolymers ATR-FTIR spectroscopy, a low-temperature nitrogen adsorption-desorption method, thermogravimetry, scanning electron microscopy, inverse gas chromatography and size distribution analysis were successfully employed. It was found that depending on the used co-monomer and the type of porogen regular polymeric microspheres with a specific surface area in the range of 134-472 m/g can be effectively synthesized. The presence of miscellaneous functional groups promotes divergent types of interactions Moreover, all of the copolymers show a good thermal stability up to 307 °C. What is important, thanks to application of anthracene derivatives as the functional monomer, the synthesized materials show fluorescence under UV radiation. The obtained microspheres can be used in various adsorption techniques as well as precursor for thermally resistant fluorescent sensors.
多孔材料在众多重要应用中都有发现。当它们除了具有孔隙率外，还具有其他有利特性，如热稳定性或化学多样性时，就特别引人关注。本研究的主要目的是合成9,10-双（甲基丙烯酰氧基甲基）蒽（BMA）与三种不同共聚单体二乙烯基苯（DVB）、乙二醇二甲基丙烯酸酯（EGDMA）和三羟甲基丙烷三甲基丙烯酸酯（TRIM）的多孔共聚物。它们通过悬浮聚合合成，使用氯苯和甲苯作为致孔剂。为了表征合成的共聚物，成功采用了衰减全反射傅里叶变换红外光谱（ATR-FTIR）、低温氮吸附-脱附法、热重分析、扫描电子显微镜、反相气相色谱和尺寸分布分析。结果发现，根据所使用的共聚单体和致孔剂的类型，可以有效地合成比表面积在134-472 m²/g范围内的规则聚合物微球。杂化官能团的存在促进了不同类型的相互作用。此外，所有共聚物在高达307°C时都表现出良好的热稳定性。重要的是，由于使用蒽衍生物作为功能单体，合成的材料在紫外辐射下显示出荧光。所获得的微球可用于各种吸附技术以及耐热荧光传感器的前驱体。
