高分子电解质对硫堇染料缔合的影响

The Influence of Polyelectrolytes on the Association of Thionine

通过观察吸收光谱的变化,研究了硫堇与聚电解质之间的相互作用,结果表明无论是在溶液或薄膜状态下,聚合物链节/染料克分子比均对硫堇的缔合行为有影响,因而改变了其光色反应性。研究了聚电解质的中和度、不同结构的聚电解质对缔合及光色反应性的影响。

The interaction between thionine and polyelectrolyte, such as PAA, PAANa, etc., was investigated by following the spectral changes. The results indicated that either in aqueous solution or in film state the association behavior of thio- nine is affected by the molar ratio of polymer segment/dye, causing changes of its photochromic reactivity. The influence of neutralization degree of polyelec- trolyte, and polyelectrolytes with various structures on the association behavior and photochromic reactivity of thionine have also been studied,