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High-silica mordenite as scaffold for phenylacetylene polymerization: in situ High Pressure investigation
Microporous and Mesoporous Materials ( IF 5.2 ) Pub Date : 2020-03-12 , DOI: 10.1016/j.micromeso.2020.110163
Giorgia Confalonieri , Marco Fabbiani , Rossella Arletti , Simona Quartieri , Francesco Di Renzo , Julien Haines , Gloria Tabacchi , Ettore Fois , Giovanna Vezzalini , Gianmario Martra , Mario Santoro

The joint use of high pressure and regular void-space architectures is a promising route to obtain new nanomaterials with unique properties. We explore herein the pressure-driven injection of aromatic guest species inside zeolite mordenite. Monomeric phenylacetylene (PhA), used as pressure transmitting medium, was inserted in high-silica mordenite at high pressure conditions. In-situ X-ray powder diffraction and IR spectroscopy analyses show that the combined action of high pressure, temperature and zeolite pores accomplish the intrusion of phenylacetylene and its conversion to oligomeric species exhibiting a greater degree of conjugation with respect to the starting monomer. This study may open a new path for the realization of composite materials with interesting optoelectronic properties via pressure-driven intrusion and polymerization of aromatic molecules inside zeolite frameworks.



中文翻译:

高硅丝光沸石作为苯乙炔聚合的支架:原位高压研究

高压和规则空隙结构的联合使用是获得具有独特性能的新型纳米材料的有前途的途径。我们在本文中探索在沸石丝光沸石内部压力驱动的芳族客体物种的注入。在高压条件下,将用作压力传递介质的单体苯乙炔(PhA)插入高硅丝光沸石中。原位X射线粉末衍射和IR光谱分析表明,高压,高温和沸石孔的共同作用实现了苯乙炔的入侵,并且其转化为相对于起始单体具有更大共轭度的低聚物质。

更新日期:2020-03-12
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