The last few decades have witnessed the great progress in surface modification through the use of functional polymer coatings. Surface-grafted polymers with thickness ranging from several nanometers to micrometers have been proven to significantly improve the surface properties of materials, thus enabling diverse, customizable, and controllable performances. Consequently, surface-grafting has become a key tool in scientific research on surface/interface and in surface engineering applications. The interface adhesion and friction between materials and their environments can be precisely controlled by grafting specially designed polymer coatings on material surfaces. As a result, the use of surface-grafted polymers to control the adhesion and friction of materials has attracted extensive attention across various disciplines, from polymer chemistry, physics, and materials science to biology and medical science. This review starts with a discussion of functional surfaces in nature that exhibit unique adhesion and friction phenomena. It then introduces the fundamental principles of tribology and the adhesion and friction behaviors of polymer surfaces. It covers different methods for producing polymer coatings and the corresponding strategies for controlling adhesion and friction. Finally, the challenges and barriers that prevent broader application of surface-grafted polymers are discussed and an outlook of future opportunities is presented.

中文翻译：

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用于粘附和摩擦控制的工程表面接枝聚合物


过去几十年见证了通过使用功能性聚合物涂层在表面改性方面取得的巨大进展。厚度从几纳米到微米的表面接枝聚合物已被证明可以显着改善材料的表面性能，从而实现多样化、可定制和可控的性能。因此，表面接枝已成为表面/界面科学研究和表面工程应用的关键工具。通过在材料表面接枝特殊设计的聚合物涂层，可以精确控制材料与其环境之间的界面粘附和摩擦。因此，利用表面接枝聚合物来控制材料的粘附和摩擦引起了从高分子化学、物理学、材料科学到生物学和医学等各个学科的广泛关注。本综述首先讨论了自然界中表现出独特粘附和摩擦现象的功能表面。然后介绍摩擦学的基本原理以及聚合物表面的粘附和摩擦行为。它涵盖了生产聚合物涂层的不同方法以及控制粘附和摩擦的相应策略。最后，讨论了阻碍表面接枝聚合物更广泛应用的挑战和障碍，并展望了未来的机遇。