J aggregation of thiacarbocyanine in aqueous gelatin solutions

被引:4
作者
Avdeeva, VI [1 ]
Shapiro, B [1 ]
机构
[1] Niikhimfotoproekt Res Ctr, Moscow 125167, Russia
关键词
D O I
10.1007/s10733-005-0080-8
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The aggregation processes of 3,3'-disulfopropyl -4,4',5,5'-dibenzo-9-ethylthiacarbocyanine betaine were studied in aqueous gelatin solutions. Gelatin molecules were shown to favor the formation of J aggregates from dye dimers according to the block mechanism. Acidic gelatins much stronger favor J aggregation of the dye than alkaline and, especially, modified gelatins. High contents of microgels and high-molecular-mass fractions in gelatin retard the formation of long-wavelenth aggregates.
引用
收藏
页码:408 / 412
页数:5
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