多孔有机笼配体的合成及催化性能研究  

Synthesis and catalytic performance of porous organic cages

作　　者：蔡粤 何涛 方蔚伟 CAI Yue;HE Tao;FANG Weiwei(School of Chemistry and Chemical Engineering,Hefei University of Technology,Hefei 230009,China)

机构地区：[1]合肥工业大学化学与化工学院,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2024年第8期1094-1099,共6页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(22171067)。

摘　　要：文章通过两步反应简单高效地制备出目标多孔有机笼RCC3,将其作为配体和CuBr_(2)配位构建多孔有机笼配合物RCC3@Cu。采用X-射线衍射(X-ray diffraction,XRD)和电喷雾电离质谱(electrospray ionization mass spectrometry,ESI-MS)表征RCC3@Cu的结构与组成,结果表明,RCC3@Cu配位稳定,有望用于介导原子转移自由基聚合(atom transfer radical polymerization,ATRP)。采用RCC3配体介导甲基丙烯酸甲酯(MMA)的ATRP,2 h其转化率达到80%,聚合物分散性指数(polymer dispersity index,PDI)为1.15;最终转化率为98.5%,PDI为1.16。聚合动力学显示RCC3介导的ATRP为近似一级反应动力学,符合活性聚合特征。该文研究RCC3配体介导不同类型单体的聚合,验证了RCC3配体具有单体泛用性。研究结果表明,RCC3体可有效应用于ATRP催化,有进一步研究价值。In this paper,the target porous organic cages(POCs) RCC3 was simply and efficiently synthesized through a two-step reaction,which was used as a ligand to coordinate with CuBr_(2) to construct a POCs complex [e-mail] X-ray diffraction(XRD) and electrospray ionization mass spectrometry(ESI-MS) were used to characterize the structure and composition of [e-mail] was conformed that RCC3@Cu was a copper complex with stable coordination structure and was expected to be used to mediate atom transfer radical polymerization(ATRP).RCC3 was employed as a ligand for ATRP of methyl methacrylate(MMA),the conversion rate would achieve up to 80% in 2 h,and the polymer dispersity index(PDI) was 1.15;the final conversion rate could reach 98.5%,and the PDI was 1.16.The polymerization kinetics showed that RCC3-mediated ATRP was approximate to the first-order reaction kinetics,which accorded with the characteristics of living polymerization.Monomer versatility of RCC3 was further demonstrated by the ATRP of various monomers.The results showed that RCC3 ligand can be effectively applied to ATRP catalysis and it is worth further research.

关 键 词：分子笼 多孔有机笼(POCs) 原子转移自由基聚合(ATRP) 催化剂 活性聚合 

分 类 号：O631.5[理学—高分子化学]