聚合物表面分子松弛行为研究进展

Advances in Chain Relaxation Behaviors on Polymer Surface

聚合物表面的松弛行为是高分子凝聚态物理研究领域中的一个热点问题,位于表面的高分子具有与本体分子截然不同的运动行为特点,从而赋予了高分子表面许多特殊性质,如特殊的环境响应性和表面粘弹性。文中综述了最近二十年关于聚合物表面分子松弛行为的研究进展,包括基于各种表征技术的研究方法、聚合物表面分子松弛行为的特点和影响因素。可以预测,随着新表征技术的开发应用,对聚合物表面分子松弛行为的研究将越来越深入。

Study of the chain relaxation at the polymer surfaces is a hot point in physics of the polymer condensed state.The polymer chains at the surfaces have the distinct mobile behaviors different from those of the bulk,which induce the special properties of the polymer surfaces,such as the environmental responsiveness and surface viscoelasticity.The advances in study of the polymer surface relaxation behaviors in the nearest twenty years were reviewed,including the methodologies based on different characterization techniques,the specialty of the surface relaxation behaviors and the factors affecting the surface relaxation behaviors.Our understanding on the polymer surface relaxation behaviors will be deepened as the development and application of the new characterization techniques.