螺恶嗪染料与乳胶的相互作用及其对纤维素纸张的光致变色功效  

Interaction of a spirooxazine dye with latex and its photochromic efficiency on cellulosic paper

作　　者：王帅 刘鹏涛 

出　　处：《中华纸业》2016年第14期62-66,共5页China Pulp & Paper Industry

摘　　要：螺恶嗪(SO)是一类应用广泛的重要的光致变色染料,用于如防伪印刷、可逆存储照片装置、分子光开关电子元件等。由于这些染料十分昂贵,提高其光反应着色效率具有重要的实际意义。在本研究中,将螺恶嗪染料,1,3-二氢-1,3,3-三甲基螺[2H-吲哚-2,3’-[3H]-萘[2,1-b]-[1,4]恶嗪],分散到以聚苯乙烯-丙烯酸为基质的胶乳中,以获得加入光致变色染料的稳定的胶乳。透射电子显微镜(TEM)观察显示,乳胶颗粒充当SO粒子的载体,能够使SO粒子很好地分散在胶乳基质中。并对其他结果,包括色彩稳定性,抗疲劳性进行了讨论。Spirooxazine （SO） is a class of important photochromic dyes for many applications, such as anticounterfeiting printing, reversible memory photo devices and optical switching elements in molecular electronics. Since these dyes are expensive, improving thcir coloration efficiency in response to photo stimuli is of practical importance. In this study, a spirooxazine dye, 1,3-dihydro-1,3,3- trimethylspiro[2Hindole-2,3＇ -[3H ]naphtha[2,1-b][1,4]oxazine], was dispersed into the substrate of a polystyrene acrylic latex emulsion to obtain a stable photochromic dye loaded latex. The photochromic latex was then applied on cellulose paper, and its coloration efficiency was significantly higher than the control （without the latex）. Transmission electron microscope （TEM） observation revealed that the spirooxazine dye was well dispersed into the matrix of the latex particles, which functioned as a carrier/dispersant for the photochromic dye. Other results, including color stability, and fatigue resistancc, were also discussed.

关 键 词：螺恶嗪(SO) 光致变色染料 胶乳 载体 着色效率 抗疲劳性 

分 类 号：TS727[轻工技术与工程—制浆造纸工程]