Formaldehyde resins,77

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  • Formaldehyde resins , 77

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Abstract

<jats:title>Abstract</jats:title> <jats:p>Three anthracene derivatives, 9,10-di-m-xyl-yl-anthracene (II), 9,10-bis(4-methylbenzyl)-anthracene (III), and 9,10-bis(2,3.5,6-tetra-methylbenzyl)anthracene (IV), have been synthesized and their ultraviolet and fluorescence spectra measured. The shift of the spectrum to the longer wavelength by the presence of methylene groups between anthracene and benzene rings may be explained in terms of direct conjugation between three rings.</jats:p> <jats:p>According to the spectra, these compounds are believed to be better second solutes of the plastic scintillator.</jats:p>

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