| 摘要 |
PROBLEM TO BE SOLVED: To provide a rigid polymer, which can be used in wide-ranging fields such as electronic/electric parts, and autoparts and has good heat resistance and processability. SOLUTION: A material is selected from substances such as 4-hydroxy cinnamic acid or chlorogenic acid, which is an organism-derived rigid compound, caffeic acid or quinic acid, which is a hydrolysate of an organism-derived rigid compound, and polylactic acid. For example, acetic anhydride and sodium acetate as a catalyst are added, followed by reaction at a predetermined temperature for a predetermined time. Thus, a homopolymer or a copolymer is produced. The thus obtained homopolymer or copolymer has an aromatic ring, so that such resulting polymer may exert liquid crystallinity depending on combination. Therefore, the resulting rigid polymer can be used for electronic/electric parts, autoparts, and the like. COPYRIGHT: (C)2006,JPO&NCIPI
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