Archivio Istituzionale della RicercaIn the acidic solids used in this study, ethene undergoes a cationic polymerisation started by proton transfer. The larger the dimensions of the micropores, the higher is the degree of branching of the polymeric cationic species obtained. Such saturated polymeric cationic species evolve upon thermal treatment by loss of hydrogen to allylic carbocations (linear mono-, di- and trienic species as well as penta-cyclo and hexacyclo monoenic species), which are precursors to aromatics. All species have been characterised both in the infrared (IR) and ultraviolet (UV) regions. The overall chemistry is very close to that of propene on the same systems, though ethene appears less reactive.
Ethene adsorption and reaction on some zeolites and pillared clays / Bodoardo, Silvia; Chiappetta, R; Fajula, F; Garrone, E.. - In: MICROPOROUS MATERIALS. - ISSN 0927-6513. - 3:6(1995), pp. 613-622. [10.1016/0927-6513(94)00068-7]
Ethene adsorption and reaction on some zeolites and pillared clays
BODOARDO, SILVIA;
1995
Abstract
In the acidic solids used in this study, ethene undergoes a cationic polymerisation started by proton transfer. The larger the dimensions of the micropores, the higher is the degree of branching of the polymeric cationic species obtained. Such saturated polymeric cationic species evolve upon thermal treatment by loss of hydrogen to allylic carbocations (linear mono-, di- and trienic species as well as penta-cyclo and hexacyclo monoenic species), which are precursors to aromatics. All species have been characterised both in the infrared (IR) and ultraviolet (UV) regions. The overall chemistry is very close to that of propene on the same systems, though ethene appears less reactive.
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https://hdl.handle.net/11583/1651411
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