Mirković Miljana, Yilmaz Muge Sari, Kljajević Ljiljana, Pavlović Vladimir, Ivanović Marija, Djukić Dunja, Eren Tarik
Department of Materials, VINČA, Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia.
Chemical Engineering Department, Yildiz Technical University, 34220 Istanbul, Turkey.
Polymers (Basel). 2023 Mar 27;15(7):1669. doi: 10.3390/polym15071669.
In this paper, the properties of organic-inorganic hybrid polymer materials, which were synthesized from an aluminosilicate inorganic matrix with the addition of brushite and aminosilane grafted on one side and PEI covalently bonded composites on the other side, were examined. The synthesized organic-inorganic hybrid polymers were examined in terms of a structural, morphological, thermo-gravimetric, and adsorption-desorption analysis and also as potential CO capturers. The structural and phase properties as well as the percentage contents of the crystalline and amorphous phase were determined by the X-ray diffraction method. The higher content of the amorphous phase in the structure of hybrid polymers was proven in metakaolin and metakaolin-brushite hybrid samples with the addition of amino silane and with 1,000,000 PEI in a structure. The DRIFT method showed the main band changes with the addition of an organic phase and inorganic matrix. Microstructural studies with the EDS analysis showed a uniform distribution of organic and inorganic phases in the hybrid geopolymers. The thermo-gravimetric analysis showed that organic compounds are successfully bonded to inorganic polymer matrix, while adsorption-desorption analysis confirmed that the organic phase completely covered the surface of the inorganic matrix. The CO adsorption experiments showed that the amine-modified composites have the higher capture capacity, which is 0.685 mmol·g for the GM10 sample and 0.581 mmol·g for the BGM10 sample, with 1,000,000 PEI in the structure.
在本文中，研究了有机-无机杂化聚合物材料的性能。该材料由铝硅酸盐无机基体合成，一侧添加了透钙磷石和接枝氨基硅烷，另一侧为共价键合的聚乙烯亚胺（PEI）复合材料。对合成的有机-无机杂化聚合物进行了结构、形态、热重和吸附-脱附分析，并将其作为潜在的CO捕获剂进行了研究。通过X射线衍射法测定了结构和相性能以及结晶相和非晶相的百分比含量。在偏高岭土以及添加了氨基硅烷且结构中含有1,000,000 PEI的偏高岭土-透钙磷石杂化样品中，证明了杂化聚合物结构中非晶相的含量较高。漫反射红外傅里叶变换光谱（DRIFT）法显示了随着有机相和无机基体的添加，主要谱带发生了变化。能谱分析（EDS）的微观结构研究表明，有机相和无机相在杂化地质聚合物中分布均匀。热重分析表明，有机化合物成功地键合到无机聚合物基体上，而吸附-脱附分析证实有机相完全覆盖了无机基体的表面。CO吸附实验表明，胺改性复合材料具有较高的捕获能力，对于结构中含有1,000,000 PEI的GM10样品，捕获能力为0.685 mmol·g，对于BGM10样品为0.581 mmol·g。
