可变色形状记忆材料

以聚乙烯醇和单宁酸为原料制备出了形状记忆水凝胶,以乙二胺四乙酸、二水合氯化铜、六水合氯化镁、氧化铝为原料制备出了无机热致变色材料,以结晶紫内酯、硼酸、十六醇为原料制备出了有机热致变色材料,并将形状记忆材料与热致变色材料结合,成功制备出了两种既能记忆形状又能变色的新型复合高分子材料。本实验原料简单易得,方法简便,并与本科阶段有机化学、无机化学、仪器分析、精细化学品化学等课程中所学习的自由基聚合反应、化学交联、络合反应等知识结合,可作为本科教学的一个综合实验,提高学生的动手能力,激发学生学习化学的兴趣和热情。

Color Changeable Shape Memory Material

In this experiment, shape memory materials were prepared by using polyvinyl alcohol and tannic acid as the raw material. The inorganic thermochromic materials were prepared by using ethylene diamine tetraacetic acid, copper chloride dihydrate, magnesium chloride hexahydrate and alumina as the raw material. Organic thermochromic materials were prepared by using violet lactone, boric acid and cetyl alcohol as the raw material. The shape memory materials were combined with thermochromic materials to successfully prepare two new composite polymers which can not only remember the shape but also change the color. The experimental materials are simple and easy to obtain, and the method is simple. This experiment uses radical polymerization, chemical cross-linking reaction, complexation reaction, etc., studied in the undergraduate courses of organic chemistry, inorganic chemistry, instrumental analysis, and fine chemical chemistry, and can be used as a comprehensive experiment in undergraduate laboratory teaching to improve students' hands-on ability, stimulate interest and enthusiasm in learning chemistry.