| abstract |
PURPOSE: A polymer, readily soluble in solvents, containing an arylcarbinyl-substituted hydroquinone and hydroquinone as a diol component and a para-orienting aromatic dicarboxylic acid as an acid component, and moldable into films, etc. having a high Young's modulus by molding at a low temperature. n CONSTITUTION: A liquid crystal polyester, obtained by using an arylcarbinyl- substituted hydroquinone of formula I [R is arylcarbinyl or formula II (X and Y are H or group of 1W4C alkyl)] and 1W20mol%, based on the substituted hydroquinone, hydroquinone as a main diol component and a para-orienting aromatic dicarboxylic acid, e.g. terephthalic acid, as a main acid component, and having ≥250°C and ≤400°C flow starting temperature and preferably ≥3.0 intrinsic viscosity. n COPYRIGHT: (C)1984,JPO&Japio |