NOVEL FLUORINE-CONTAINING DICARBOXYLIC ACIDS AND THEIR NOVEL POLYMER COMPOUNDS
申请人:Narizuka Satoru
公开号:US20090030173A1
公开(公告)日:2009-01-29
Disclosed is a fluorine-containing dicarboxylic acid represented by formula (1),
wherein n represents an integer of 1-4, and the two carboxylic groups are not adjacent to each other on the aromatic ring. It is possible to obtain a linear polymer compound by reacting the fluorine-containing dicarboxylic acid with a comonomer (e.g., diaminodiol). By thermal cyclization, this linear polymer compound can be converted into another polymer compound having superior characteristics.
Fluorine-Containing Dicarboxylic Acids and Their Novel Polymer Compounds
申请人:NARIZUKA Satoru
公开号:US20110282026A1
公开(公告)日:2011-11-17
A fluorine-containing dicarboxylic acid represented by formula (1),
wherein n represents an integer of 1-4, and the two carboxylic groups are not adjacent to each other on the aromatic ring. It is possible to obtain a linear polymer compound by reacting the fluorine-containing dicarboxylic acid with a comonomer (e.g., diaminodiol). By thermal cyclization, this linear polymer compound can be converted into another polymer compound having superior characteristics.
Cathodic coupling of 1, 3, 5 - tri (aryl and alkylsulfonyl) benzenes into tetra and penta-substituted biaryls
作者:Mohamed Benaskar、Jacques Simonet
DOI:10.1016/0040-4039(94)88330-0
日期:1994.3
Tri [aryl and alkylsulfonyl] benzenescathodically lead in non aqueous conditions to unexpected coupling products either tetra or pentasulfonylbiphenyls depending on the structure of the starting compounds.