【摘要】 研究了Ｈｅ─Ｎｅ激光诱导丙烯酰胺增感体系中噻嗪染料的光褪色行为与染料的结构、浓度，以及胺的结构、浓度和单体浓度的关系，在不同反应物的浓度下，亚甲基蓝的褪色反应均为一级反应。聚合速率（Ｒ＿ｐ）与染料的褪色速率（Ｒ＿ｆ）有效复杂的关系，在一定条件下符合Ｒ＿ｐ∝Ｂ１／２关系。更多还原

【Abstract】 The photofading behaviour of thiazine dyes in sensitized acrylamide systeminduced by He Ne laser has been investigated.It is found that the photofading reactionof dyes is related to the structure of dyes and amines,and the concentrations of dyes,amines and monomer,In different concentrations of reactants,the photofading reactionof methylene blue is conformed to the first order reaction,Relation of thepolymerization rate( R)to the photofading rate(Rf)is rather complex, In someconditions,they are in coincidence with the equation of R_p∝R￣1/2.更多还原