High-silica mordenite as scaffold for phenylacetylene polymerization: In situ high pressure investigation

Year: 2020

Authors: Confalonieri G., Fabbiani M., Arletti R., Quartieri S., Di Renzo F., Haines J., Tabacchi G., Fois E., Vezzalini G., Martra G., Santoro M.,

Autors Affiliation: Univ Modena & Reggio Emilia, Dipartimento Sci Chim & Geol, Via Campi 103, I-41125 Modena, Italy;‎ Univ Torino, Dipartimento Sci Terra, Via Valperga Caluso 35, I-10125 Turin, Italy; Univ Montpellier, ENSCM, CNRS, ICGM, Montpellier, France; ‎ Univ Insubria, Dipartimento Sci & Alta Tecnol, Via Valleggio 9,Via Valleggio 5, I-22100 Como, Italy; INSTM, Via Valleggio 9,Via Valleggio 5, I-22100 Como, Italy; Ist Nazl Ottica, European Lab Non Linear Spect LENS, CNR INO, I-50019 Sesto Fiorentino, Italy

Abstract: The joint use of high pressure and regular void-space architectures is a promising route to obtain new nano-materials 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 optoelectmnic properties via pressure-driven intrusion and polymerization of aromatic molecules inside zeolite frameworks.


Volume: 300      Pages from: 110163-1  to: 110163-7

More Information: This work was carried put in the frame of the PRIN project ZAPPING (PRIN2015 Prot. 2015HK93L7) funded + by the Italian MIUR. The authors thank the staff of SNBL1 (BM01) beamline at ESRF (Grenoble, France), for the assistance during XRPD data collection.
KeyWords: Pure-silica mordenite; High-pressure; Hydrocarbon-polymerization
DOI: 10.1016/j.micromeso.2020.110163

Citations: 4
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