文中简介了凝聚态物理中新兴的拥塞理论,并讨论了其在高分子体系中的作用.在拥塞体系中,影响拥塞-去拥塞转变的3个变量,分别为温度、施加的应力和体系的堆积密度.无定形高分子链在剪切作用下的低温流动可看作是去拥塞转变的一种形式.高分子在剪切作用下的低温流动现象为理解徐僖先生创建的“磨盘研磨力反应器”作用原理提供了新的思路和途径.
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