| 摘要 |
PURPOSE:To obtain the title molded article having slight anisotropy and delamination by copolymerizing plural structural units in a specific ratio. CONSTITUTION:(A) A 4,4'-diphenyldicarboxylic acid and hydroquinone which are processed into a structural unit shown by formula I (X is group shown by formula II, etc.) are blended with (B) a dicarboxylic acid and a dihydroxy compound which are made into a structural unit shown by formula III (X, is group shown by formula II. etc.; Y is group shown by formula IV, etc.) and further (C) a hydroxycarboxylic acid to be processed into a structural unit shown by formula V (Z is group shown by formula VI, etc.) in the molar ratio of the components B+C/the components A+B+C of <=10mol% and, for example, acetic anhydride is added and polycondensation through removal of acetic acid is carried out to give a polymer. The polymer is used to give the aimed molded articles such as injection molded articles having preferably <=0.8 crystal orientation degree and extrusion molded articles having preferably >=0.8 crystal orientation degree.
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