Color formation in styrene—zeolite complexes

Autor:	R.F. Sprecher, S.S. Pollack, E.A. Frommell
Rok vydání:	1991
Předmět:	chemistry.chemical_classification Double bond Radical General Engineering Molecular sieve Styrene Catalysis chemistry.chemical_compound Hydrocarbon Adsorption chemistry Polymer chemistry Organic chemistry Zeolite
Zdroj:	Journal of Molecular Catalysis. 66:195-203
ISSN:	0304-5102
DOI:	10.1016/0304-5102(91)80013-s
Popis:	Styrene adsorbed in the channels of ZSM-5 and other zeolites and then activated by heat or irradiation produces pigmented pink to purple complexes. The complexes were prepared with zeolite containing some aluminum substituting for silicon in the structure, H + in some of the exchange sites, styrene or various substituted styrenes, and some activating agent. The colors are probably produced by cation radicals formed by the reaction of the H + of the zeolites and the site of the double bond in the vinyl group. Developing a colorimetric method for measuring the number of acid sites in zeolites may be possible.
Databáze:	OpenAIRE
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