DAR成色剂结构与性能的关系

通过分析DAR成色剂的结构和作用机理,讨论了其结构与照相性能之间的关系.DAR成色剂的结构可表示为:Cp—L—A,其中Cp代表成色剂母体,A代表促进显影的功能基团即增强基团,L代表连接基团同时也有吸附功能即吸附基团.本文指出:当吸附基团和增强基团相同时,母体对照相性能影响不大;当母体及增强基团相同时,吸附基团的吸附性越强,照相性能越好;当母体及吸附基团相同时,增强基团的感染显影作用越强,照相性能越好.

Relation Between DAR Coupler's Structure and Property

The relation of the structure of DAR coupler and it's photographic property was reported by analysizing the structure of DAR coupler.The structure of DAR coupler can be represented by Cp-L-A.Cp is the coupler residue;L is the divalent linking group also is the adsorbing group;A is the development accelerating functional group.In this paper,conclusion were made:the Cp can make no effect apparently on photographic property when L and A are the same.The stronger of the development accelerating functional group,the better of the DAR coupler's photographic property when Cp and L are the same.The stronger of the adsorbability of adsorbing group,the better of the DAR coupler's photographic property when Cp and A are the same.