Synthesis of regiocontrolled poly(4,6-di-n-butoxy-1,3-phenylene) by oxidative coupling polymerization

被引:0
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作者
Okada, T [1 ]
Fujiwara, N [1 ]
Ogata, T [1 ]
Haba, O [1 ]
Ueda, M [1 ]
机构
[1] YAMAGATA UNIV,GRAD SCH ENGN,DEPT HUMAN SENSING & FUNCT SENSOR ENGN,YONEZAWA,YAMAGATA 992,JAPAN
关键词
poly(m-phenylene); selective coupling; regiocontrolled polymer; oxidative coupling polymerization; thermal stability;
D O I
暂无
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Poly(4,6-di-n-butoxy-1,3-phenylene) (6) was prepared by oxidative coupling polymerization of 1,3-di-n-butoxybenzene (1) or 2,2',4,4'-tetra-n-butoxy biphenyl (3). Polymerizations were conducted in nitrobenzene in the presence of FeCl3 at room temperature and produced polymers with number-average molecular weights up to 42,000. The effects of various factors, such as amount of FeCl3 and reaction temperature and time were studied. The structure of polymer 6 was characterized by 270 MHz H-1- and 68.5 MHz C-13-NMR spectroscopies and was estimated to consist of almost completely 1,3-linkage. The regiocontrolled polymer was readily soluble in common organic solvents. Thermogravimetric analysis of polymer 6 showed 10% weight loss at 390 degrees C in nitrogen. (C) 1997 John Wiley & Sons, Inc.
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页码:2259 / 2266
页数:8
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