Alternating Copolymerization of gem-Diborylethylene with 1,3-Dienes: A Versatile Platform for Postpolymerization Modification and Controlled Degradation

IF 9.2 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

CCS Chemistry Pub Date : 2026-07-03 DOI:10.31635/ccschem.026.202607708

Yuanqing Gu, Guodan Lu, Xu Zhang & Chen ZhuFrontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, Shanghai 200240

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Abstract

CCS Chemistry, Ahead of Print.
While the versatile gem-diboryl unit is widely used in organic synthesis, its application in polymer science remains underexplored. Here we report a novel radical-mediated alternating copolymerization of readily available gem-diborylethylene with common 1,3-dienes (butadiene, isoprene, 2,3-dimethylbutadiene), yielding well-defined polymers with precise alternating sequences. The alternating propagation is driven by the matched polarity and steric profiles of the monomers. The incorporated gem-diboryl moiety serves as a robust handle for diverse postpolymerization modifications, enabling rapid access to functional polymer libraries. Moreover, the olefinic backbone allows for on-demand metathesis degradation, efficiently yielding small-molecule gem-diboryl cyclohexene—a precursor to high-value cyclohexene derivatives.

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宝石二硼乙烯与1,3-二烯的交替共聚：聚合后改性和受控降解的通用平台

CCS化学，领先于印刷。虽然多用途的宝石二硼基单元在有机合成中得到了广泛的应用，但其在聚合物科学中的应用仍未得到充分的探索。在这里，我们报告了一种新的自由基介导的易获得的gem-二硼乙烯与常见的1,3-二烯（丁二烯，异戊二烯，2,3-二甲基丁二烯）的交替共聚，产生具有精确交替序列的定义良好的聚合物。交替传播是由匹配的极性和单体的空间分布驱动的。结合的宝石二硼基部分作为一个强大的处理不同的聚合后修饰，使快速访问功能聚合物库。此外，烯烃主链允许按需再分解降解，有效地产生小分子宝石-二硼基环己烯-高价值环己烯衍生物的前体。

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来源期刊

CCS Chemistry Chemistry-General Chemistry

CiteScore

13.60

自引率

13.40%

发文量

475

审稿时长

10 weeks

期刊介绍： CCS Chemistry, the flagship publication of the Chinese Chemical Society, stands as a leading international chemistry journal based in China. With a commitment to global outreach in both contributions and readership, the journal operates on a fully Open Access model, eliminating subscription fees for contributing authors. Issued monthly, all articles are published online promptly upon reaching final publishable form. Additionally, authors have the option to expedite the posting process through Immediate Online Accepted Article posting, making a PDF of their accepted article available online upon journal acceptance.