反应条件对Suzuki聚合制备聚芴分子量的影响  

Effect of Suzuki Polymerization Conditions on the Molecular Weight of Polyfluorene

作　　者：宋舒悦 王晓东 张安东 刘岳衡 谷承霖 刘亚辉 薄志山 Shu-yue Song;Xiao-dong Wang;An-dong Zhang;Yue-heng Liu;Cheng-lin Gu;Ya-hui Liu;Zhi-shan Bo(College of Textiles&Clothing,Institute of Functional Dyes and Application Technology,Qingdao University,Qingdao 266071;Beijing Key Laboratory of Energy Conversion and Storage Materials,College of Chemistry,Beijing Normal University,Beijing 100875)

机构地区：[1]青岛大学纺织服装学院功能染料与应用技术研究院,青岛266071 [2]北京师范大学化学学院能量转换与存储材料北京市重点实验室,北京100875

出　　处：《高分子学报》2025年第2期299-305,共7页Acta Polymerica Sinica

基　　金：国家重点研发计划(项目号2022YFF0709900)资助.

摘　　要：聚芴作为一类典型的有机共轭半导体材料,在有机光电器件制备中得到广泛应用,其分子量对光电性质具有显著影响.本研究聚焦于聚芴材料的制备过程,采用Suzuki反应制备聚芴,通过调控溶剂(四氢呋喃/水、甲苯/水、邻二甲苯/水、二氯甲烷/水),碱的种类(碳酸钾、碳酸氢钾、氢氧化钾、磷酸钾),催化剂(Pd(PPh_(3))_(4)、Pd_(2)(dba)_(3)/P(o-Tol)_(3)、Pd(OAc)_(2)/P(o-tol)_(3)、PdCl_(2)(dppf)、PdCl_(2)(PPh_(3))_(2)),以及化学计量比(1:1,1:0.99,1:1.01)等反应条件,深入研究了这些因素对聚芴类材料分子量的影响.研究结果表明,增强有机溶剂与水的混溶性,选用中等强度的无机碱,采用二价钯催化体系,并严格控制反应物的投料比为1:1,有助于合成高分子量的聚芴.Polyfluorene is a typical class of organic conjugated semiconductor materials,which is widely used in the preparation of organic optoelectronic devices,and its molecular weight has a significant effect on the optoelectronic properties.In this study,we focused on the preparation of polyfluorene materials and investigated the effect on the molecular weight of polyfluorene materials by controlling the reaction conditions,such as solvent(tetrahydrofuran/H_(2)O,toluene/H_(2)O,o-xylene/H_(2)O,dichloromethane/H_(2)O),base(K2CO_(3),KHCO_(3),KOH,K3PO4),catalyst(Pd(PPh_(3))_(4),Pd_(2)(dba)_(3)/P(o-Tol)_(3),Pd(OAc)_(2)/P(o-tol)_(3),PdCl_(2)(dppf),PdCl_(2)(PPh_(3))_(2))and stoichiometric ratio(1:1,1:0.99,1:1.01).Our results show that the obtained polyfluorene tend to display high molecular weight by increasing the miscibility of organic solvents with water,selecting medium strength inorganic bases,Pd(Ⅱ)catalytic system,and strictly controlling the reaction feed ratio(1:1).

关 键 词：Suzuki聚合 分子量 聚芴 反应条件 共轭聚合物 

分 类 号：O62[理学—有机化学]