Naslov
Functional polymers 64. Potassium ionization of desorbed species (K+IDS) of 2(2-hydroxyphenyl)2H-benzotriazoles

Autori
Stoeber, L. ; Šustić, Alan ; Simonsick, W.J. ; Vogl, O.

Izvornik
Journal of Macromolecular Science-Pure & Applied Chemistry (1060-1325) 37 (2000), 11; 1269-1300

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
mass spectrometry; molecular weight determination; ultraviolet stabilizers; potassium ionization of desorbed species; 2(2-hydroxyphenyl)2h-benzotriazoles; polymerizable uv stabilizers

Sažetak
Mass spectrometry using the potassium ionization of desorbed species (K+IDS) technique was found to be an unusually fruitful method to characterize 2(2-hydroxyphenyl)2H-benzotriazole derivatives. This class of compounds has the proper molecular weight range of 200 up to more than 1000 daltons (Da) and the proper volatility to show readily desirable concentrations in the mass spectrometer. This class of compounds is stable under the conditions of measurement which allows the determination of their purity. 2(2-Hydroxyphenyl)2H-benzotriazoles have recent-ly been used most extensively for the ultraviolet stabilization of polymeric materials. In this work, over 100 2(2-hydroxy-phenyl)2H-benzotriazoles have been characterized by K+IDS mass spectrometry.

Izvorni jezik
Engleski

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