Fischbach Danyon M, Krstic Katharina A, Sita Lawrence R
Department of Chemistry and Biochemistry, University of Maryland, 20742, College Park, MD, USA.
Angew Chem Int Ed Engl. 2023 Aug 1;62(31):e202304725. doi: 10.1002/anie.202304725. Epub 2023 Jun 22.
The (stereoselective) living coordinative copolymerization of 1-alkenes with 4-aryl-1,6-heptadienes, in both the absence and presence of multiple equivalents of a reversible chain transfer agent, is established as a highly versatile strategy for production of multivariate hyperdimensional functionalized semi-crystalline or amorphous polyolefins that optionally possess either mono- or difunctionalized (telechelic) end-groups in combination with a programmable level of incorporation of orthogonal functional groups within the main-chain. The non-conjugated diene comonomers are readily obtained from a diverse range of aryl carboxaldehyde precursors through a one-step bis-allylation process. These results serve to provide a new platform for exploring the science and technology of a vast new landscape of functionalized classes of polyolefins that are now accessible in practical and scalable quantities.
在不存在和存在多当量可逆链转移剂的情况下，1-烯烃与4-芳基-1,6-庚二烯的（立体选择性）活性配位共聚被确立为一种高度通用的策略，用于生产多变量超维功能化半结晶或无定形聚烯烃，这些聚烯烃可任选具有单官能或双官能（遥爪）端基，并结合主链内可编程水平的正交官能团掺入。非共轭二烯共聚单体可通过一步双烯丙基化过程从多种芳基甲醛前体轻松获得。这些结果为探索功能化聚烯烃这一广阔新领域的科学技术提供了一个新平台，现在可以以实际且可扩展的量获得这些聚烯烃。
