有机聚合物材料表面受限光感应C–H键转换反应研究进展

Advances in surface confined C–H bonds photo-transformation of organic polymer materials

有机聚合物材料普遍具有表面能低和反应惰性的特点,限制了其在光、电、分离、生物医用等高端领域的应用.表面改性是有机高分子材料高性能化的重要手段,其涉及的核心科学问题是表面C–H键的活化/转换化学.光化学反应具有快速高效、化学选择性高、环境友好、可低温反应、时间/空间精确可控等特点,在有机聚合物材料表面改性上具有突出优势.本文介绍了本课题组多年来在有机聚合物材料表面受限光感应C–H键转换反应方面的研究进展,系统介绍了此类反应的机理,以及在生长/固定无机、导电材料、生物分子等方面的应用,并展望了光感应C–H键转换反应今后的发展方向.

Organic polymer materials generally exhibit low surface energy and inert surface reactivity, which limits their applications in high-tech fields such as optics, electronics, separation and biomedical materials. Surface modification is an important way to improve the performance of organic polymer materials, and the crucial scientific issue involved is the activation/transformation chemistry of surface C–H bonds. Photochemical reaction has the characteristics including high efficiency and chemical selectivity, environmental friendliness, low reaction temperature and precise temporal/spatial control, which is superior in surface modification of organic polymer materials. Based on the recent progress in our lab, in this review we summarize some strategies of confined photo-transformation of C–H bonds on the surface of organic polymer materials. The mechanism of these reactions and their applications in the growth/immobilization of inorganic oxide, conductive materials and biomolecule are systematically introduced. The future development of this field is also prospected.