Monolayers of the photosensitive benzodithia-15-crown-5 derivativeстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The amphiphilic benzodithia-15-crown-5 styryl dye forms relatively stable insoluble monolayers on distilled water (collapse pressure is 34.5 mN m(-1)) and alkali metal cations (35.6-36.7 mN m(-1)) or heavy metal cations (24.2 mN m(-1) for Ag+) in the aqueous subphase. Three types of the dye monolayer structures depending on the subphase nature (water, alkali metal or heavy metal cations) have been distinguished from surface pressure-molecular area and surface potential-molecular area isotherms, as well as observed by Brewster angle microscopy (BAM). The ionoselective and photosensitive properties of the amphiphilic dye in monolayers have been studied in the presence of K+, Na+, Hg2+ and Ag+ cations in the aqueous subphases. (C) 2000 Elsevier Science B.V. All rights reserved.