某些硫碳菁染料在溴碘化银乳剂中聚集态的研究  

THE AGGREGATED STATE OF SOME THIACARBOCYANINE DYES ADSORBED ON THE AgBr(I) EMULSION

作　　者：余沛霞 张石平[1] 

机构地区：[1]化工部第一胶片厂,保定071054

出　　处：《感光科学与光化学》1992年第2期138-143,共6页Photographic Science and Photochemistry

摘　　要：本文应用三种不同晶形的溴碘化银乳剂(立方体、八面体和T-颗粒)和八种硫碳菁染料(大部分为内铵盐结构染料)进行了染料的聚集态的研究。试验结果表明,染料的J-聚集态的形成主要取决于染料的结构,其次依赖于卤化银的晶形。三种不同结构的表面活性剂对染料聚集态的形成均有影响,其中两性的表面活性剂最强,阴离子的表面活性剂次之,中性的表面活性剂最弱。二种中位甲基取代的硫碳菁染料的聚集态受表面活性剂影响最为明显,形成较强的J-态,而对其它六种染料的聚集态影响较小,J-聚集态稍有增强。The aggregated state of eight thiacarbocyanine dyes adsorbed on three kinds of AgBr(I) emulsion (cubic, octahedral and tabulargrain) was investigated. Experimental results showed that the formation of J-aggregate mainly depends on the dye structure, secondly depends on the property of the crystal of AgX-emulsion. Three different kinds of surfactants affected on the formation of the aggregates of dyes. Amphoteric surfactant is the strongest, secondly anionic surfactant, neutral surfactant is rather weak. The aggregated states of two meso-methyl-sub-stituted thiacarbocyanine dyes are evidently influenced by surfactants, giving very strong J-aggregate. But aggregates for other six dyes are influenced slightly.

关 键 词：卤化银 乳剂 聚集态 硫碳菁 染料 

分 类 号：TQ572.1[化学工程—精细化工]