高分子链的柔性及其与结构的关系

The Chain Flexibility and Structural relationships of Polymers

长链高分子的柔性赋于高分子材料一系列特殊性能,因此研究高分子链的柔性程度及其与高分子链结构和性能的关系,有着极为重要的基础意义,在讨论和研究高分子链柔性时,必须分清静态柔性和动态柔性。静态柔性指的是热力学平衡态柔性,它反映在溶液内高分子的构象和形态,而动态柔性是指在外界条件的影响下从一种平衡态构象转变成另一种平衡态构象的速度过程。本文的讨论仅限于高分子链的静态柔性。

The chain flexibility is one of the most important topics to relate the strucrare and properties of polymers. The characteristic parameters of chain flexibility and their measurements, the relationships between chain structure and flexibility and the temperature dependence of unperturbed chain dimension have been discussed in this review.