Synthesis of Hyperbranched Polymer with Degree of Branching of Approximately 100% by Polycondensation of 2-(4-Phenoxyphenoxy)fluorenone

被引：20
|
作者：
Kono, Shunji [1 ,2 ]
Sinananwanich, Warapon [1 ]
Shibasaki, Yuji [1 ]
Ando, Shinji [1 ]
Ueda, Mitsuru [1 ]
机构：
[1] Tokyo Inst Technol, Grad Sch Sci & Engn, Dept Organ & Polymer Mat, Meguro Ku, Tokyo 1528552, Japan
[2] Tsinghua Univ, Dept Chem Engn, Adv Mat Lab, Beijing 100084, Peoples R China
来源：
POLYMER JOURNAL | 2007年 / 39卷 / 11期
关键词：
Hyperbranched Polymer; Degree of Branching; Polycondensation; Kinetics; Fluorenone; Anisole;
D O I：
10.1295/polymj.PJ2007090
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
An approximately 100% branched hyperbranched polymer was successfully prepared using 2-(4-phenoxyphenoxy)fluorenone as a monomer in an acidic medium. The kinetics of the model reaction between 9-fluorenone and anisole was investigated. The reaction obeyed the second-order kinetics, indicating that the first reaction, i.e., the formation of the intermediate from 9-fluorenone and anisole, is considerably slower than the second one, i.e., the reaction of the intermediate with anisole. Based on this finding, a new monomer expected to produce a 100% branched hyperbranched polymer, 2-(4-phenoxyphenoxy)fluorenone, was designed and prepared. The polymer thus obtained was characterized by FT/IR and C-13 NMR spectroscopy, which confirmed that the polymer was an almost 100% branched hyperbranched polymer. [doi:10.1295/polymj.PJ2007090]
引用
收藏
页码：1150 / 1156
页数：7
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