Phase diagram and glass transition of confined benzene |
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| Authors: | Xia Yongde Dosseh Gilberte Morineau Denis Alba-Simionesco Christiane |
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| Institution: | Laboratoire de Chimie Physique, UMR CNRS 8000, Université de Paris Sud, Batiment 349, 91405 Orsay Cedex, France. |
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| Abstract: | We used differential scanning calorimetry, neutron scattering, and proton NMR to investigate the phase behavior, the structure, and the dynamics of benzene confined in a series of cylindrical mesoporous materials MCM-41 and SBA-15 with pore diameters, d, between 2.4 and 14 nm. With this multitechnique approach, it was possible to determine the structure and, for the first time to our knowledge, the density of confined benzene as a function of temperature and pore size. Under standard cooling rates, benzene partially crystallizes in SBA-15 matrixes (4.7
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