Sousa Rui P C L, Figueira Rita B, Callone Emanuela, Dirè Sandra, Costa Susana P G, Raposo Maria Manuela M
Centre of Chemistry, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal.
"Klaus Müller" NMR Laboratory, Department of Industrial Engineering, University of Trento, Via Sommarive, 9, 38123 Trento, Italy.
Nanomaterials (Basel). 2023 Aug 26;13(17):2429. doi: 10.3390/nano13172429.
Organic-inorganic hybrids (OIHs) are a type of material that can be obtained using the sol-gel process and has the advantages of organic and inorganic moieties in a single material. Polyetheramines have been widely used in the preparation of this type of material, particularly in combination with epoxy-based alkoxysilanes. Nevertheless, epoxyciclohexylethyltrimethoxysilane (ECHETMS) is a promising alkoxysilane with an epoxy terminal group that is quite unexplored. In this work, four novel OIH materials were synthesized using the sol-gel method. The OIHs were based on Jeffamines of different molecular weights (D-230, D-400, ED-600, and ED-900), together with ECHETMS. The materials were characterized using multinuclear solid state NMR, FTIR, BET, UV/Vis spectroscopy, EIS, and TGA. The influence of the Jeffamine molecular weight and the suitability of these materials to act as a supporting matrix for heteroaromatic probes were assessed and discussed. The materials show interesting properties in order to be applied in a wide range of sensing applications.
有机-无机杂化材料（OIHs）是一类可通过溶胶-凝胶法制备的材料，在单一材料中兼具有机和无机部分的优点。聚醚胺已广泛用于此类材料的制备，特别是与环氧基烷氧基硅烷结合使用。然而，环氧环己基乙基三甲氧基硅烷（ECHETMS）是一种具有环氧端基的有前途的烷氧基硅烷，目前尚未得到充分研究。在这项工作中，使用溶胶-凝胶法合成了四种新型的OIH材料。这些OIHs基于不同分子量的Jeffamines（D-230、D-400、ED-600和ED-900）以及ECHETMS。使用多核固态NMR、FTIR、BET、UV/Vis光谱、EIS和TGA对材料进行了表征。评估并讨论了Jeffamine分子量的影响以及这些材料作为杂芳族探针支撑基质的适用性。这些材料展现出有趣的特性，有望应用于广泛的传感应用中。
