| 摘要 |
PROBLEM TO BE SOLVED: To provide a lactone ring-opening polymerization catalyst which can simply produce stereocomplexes having sufficiently high thermal stability. SOLUTION: This lactone ring-opening polymerization catalyst contains a salen type metal complex represented by general formula (1) (R<1> , R<2> , R<3> , R<7> , R<8> , and R<9> are each H, a 1 to 6C alkyl, a 1 to 6C alkoxy, a halogen, a 6 to 18C aryl, or methoxymethyl; R<4> , and R<6> are each a 1 to 6C alkyl, a 1 to 6C alkoxy, a halogen, a 6 to 18C aryl, or methoxymethyl; R<5> is a 1 to 6C alkyl, or a 1 to 6C alkoxy; R<10> is a 2 to 6C divalent aliphatic hydrocarbon; M is Al, Fe, or F).
|
