以海藻酸钠和聚丙烯酸钠两种常见高分子化合物为原料,分别设计了一个适合中学课堂演示和课外活动的趣味实验,通过其原理的介绍,拓展中学高分子化学教学原理。 Two common polymer compounds, sodium alginate and sodium polyacrylate, were used as raw materials to design a fun experiment that was suitable for classroom demonstrations and extracurricular activities in secondary schools. Through the introduction of its principles, the teaching principles of polymer chemistry in middle schools were expanded.