Na Yinna, Chen Changle
CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, China.
Angew Chem Int Ed Engl. 2020 May 11;59(20):7953-7959. doi: 10.1002/anie.202000848. Epub 2020 Mar 18.
The incorporation of comonomers during ethylene polymerization can efficiently modulate important material properties of the polyolefins. Utilizing bioresourced comonomers for the generation of high-performance polyolefin materials is attractive from a sustainability point of view. In this contribution, bioresourced eugenol and related comonomers were incorporated into polyolefins through palladium-catalyzed copolymerization and terpolymerization reactions. Importantly, high-molecular-weight catechol-functionalized polyolefins can be generated. The introduction of different metal ions induces efficient interactions with the incorporated catechol groups, leading to enhanced mechanical properties and self-healing properties. Moreover, the catechol functionality can greatly improve other properties such as surface properties, adhesion properties, and compatibilizing properties. The catechol-functionalized polyolefin was demonstrated as a versatile platform polymer for accessing various materials with dramatically different properties.
在乙烯聚合过程中引入共聚单体可以有效地调节聚烯烃的重要材料性能。从可持续发展的角度来看,利用生物资源共聚单体来制备高性能聚烯烃材料具有吸引力。在本论文中,通过钯催化的共聚和三元共聚反应,将生物资源丁香酚及相关共聚单体引入聚烯烃中。重要的是,可以生成高分子量的儿茶酚官能化聚烯烃。引入不同的金属离子会与引入的儿茶酚基团产生有效的相互作用,从而提高机械性能和自愈性能。此外,儿茶酚官能团可以极大地改善其他性能,如表面性能、粘附性能和增容性能。儿茶酚官能化聚烯烃被证明是一种通用的平台聚合物,可用于制备具有显著不同性能的各种材料。