制备了一种双光子聚合引发剂,反,反-1,4-双(4'-N,N-二丁胺基苯乙烯)-2,5-二甲氧基苯(DBASDMB),利用挥发溶剂法首次获得该化合物的晶体,用四圆X射线衍射法解析了晶体结构.结果表明,该晶体属于三斜晶系,P-1空间群;同时证明引发剂分子是具有很好对称性和平面性的全反式结构.仔细研究了该化合物在不同溶剂下的线性吸收光谱和单、双光子荧光谱,并在同一条件下对其单、双光子光谱进行了比较.在760nm的飞秒脉冲激光辐照下,DBASDMB能够高效地引发聚氨酯类丙烯酸酯齐聚物的聚合反应,成功地制作了一个微结构.
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