通过齐格勒-纳塔铁（III）催化体系实现链内官能化的间同立构1,2-聚丁二烯。
In-chain functionalized syndiotactic 1,2-polybutadiene by a Ziegler-Natta iron(iii) catalytic system.
作者信息
Liang Shanshan, Zhang Huaqiang, Cong Rixin, Liu Heng, Wang Feng, Hu Yanming, Zhang Xuequan
机构信息
College of Material Science and Engineering, Shenyang University of Chemical Technology Shenyang 110142 China.
CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences 5625 Renmin Street Changchun 130022 P. R. China
出版信息
RSC Adv. 2019 Oct 17;9(57):33465-33471. doi: 10.1039/c9ra06499k. eCollection 2019 Oct 15.
Copolymerization of 1,3-butadiene with four 1-substituted 1,3-diene comonomers bearing amino and alkyoxy groups by a Ziegler-Natta iron(iii) catalytic system to access in-chain functionalized syndiotactic 1,2-polybutadiene is reported herein. The polar comonomer content can be easily regulated by varying the comonomer loadings or polymerization conditions, affording functionalized syndiotactic 1,2-polybutadiene with different amounts of functionalities. The incorporation of a polar comonomer showed little influence on the 1,2-content and stereoregularity of the resulting polymers, giving a 1,2-structure as high as ∼85% and an pentad of 81.0%. Significantly improved surface properties of the polymers was obtained after incorporation of polar comonomer, as revealed from the remarkably decreased water contact angles.
本文报道了通过齐格勒-纳塔铁（III）催化体系，使1,3-丁二烯与四种带有氨基和烷氧基的1-取代1,3-二烯共聚单体进行共聚反应，从而获得链内官能化的间同立构1,2-聚丁二烯。通过改变共聚单体的负载量或聚合条件，可以轻松调节极性共聚单体的含量，从而得到具有不同官能度的官能化间同立构1,2-聚丁二烯。极性共聚单体的引入对所得聚合物的1,2-含量和立构规整度影响较小，1,2-结构含量高达约85%，五单元组为81.0%。引入极性共聚单体后，聚合物的表面性能得到显著改善，水接触角明显减小即可证明这一点。
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