JPH1087796A5

JPH1087796A5 -

Info

Publication number: JPH1087796A5
Application number: JP1996265325A
Authority: JP
Filing date: 1996-09-13
Publication date: 2004-09-16
Anticipated expiration: 2016-09-13

Description

【００１１】
【化５】
［式中、Ｒ^３は炭素数１〜１８のアルキル基、炭素数２〜１８のアルケニル基、炭素数１〜１８のアルコキシ基、炭素数３〜１８のシクロアルキル基、フェニル基又はハロゲン原子を表す。ｂは１〜５の整数を表す。］[0011]
[C5]
[In the formula, ^R3 represents an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms, an alkoxy group having 1 to 18 carbon atoms, a cycloalkyl group having 3 to 18 carbon atoms, a phenyl group, or a halogen atom; and b represents an integer of 1 to 5.]

【００１２】
【化６】
［式中、Ｒ^４は炭素数１〜４の直鎖状或いは分岐鎖状のアルキレン基を表す。Ｒ^５は前記のＲ^３と同義である。ｃは０〜５の整数を表す。］[0012]
[C6]
[In the formula, ^R4 represents a linear or branched alkylene group having 1 to 4 carbon atoms, ^R5 has the same meaning as ^R3 , and c represents an integer of 0 to 5.]

【００１３】
【化７】
［式中、Ｒ^６は前記のＲ^３と同義である。ｄは１〜５の整数を表す。］[0013]
[C7]
[In the formula, ^R6 has the same meaning as ^R3 , and d represents an integer of 1 to 5.]

【００１４】
【化８】
［式中、Ｒ^７は前記のＲ^４と、Ｒ^８は前記のＲ^３と夫々同義である。ｅは０〜５の整数を表す。］[0014]
[Chemical formula 8]
[In the formula, ^R7 has the same meaning as ^R4 , and ^R8 has the same meaning as ^R3 . e represents an integer of 0 to 5.]

【００１９】
Ｒ ^１１−（ＣＯＯＨ）ｇ（１ａ）
［式中、Ｒ ^１１は前記のＲ^１と、ｇは前記のａと夫々同義である。］[0019]
R ¹¹ −(COOH) g (1a)
[In the formula, R ¹¹ has the same meaning as R ¹ , and g has the same meaning as a.]

【００２０】
Ｒ ^１２−ＮＨ_２（１ｂ）
［式中、Ｒ ^１２は前記のＲ^２と同義である。］[0020]
R12 ^- _NH2 (1b)
[In the formula, R12 has the ^same meaning as ^R2 above.]

【００２６】
【化９】
［式中、Ｒ ^１３は炭素数１〜１８のアルキル基若しくはアルケニル基若しくはアルコキシ基、炭素数３〜１２のシクロアルキル基、フェニル基又はハロゲン原子を表す。ｈは１〜５の整数を表す。］[0026]
[Chemical formula 9]
[In the formula, R ¹³ represents an alkyl group, an alkenyl group, or an alkoxy group having 1 to 18 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, a phenyl group, or a halogen atom; and h represents an integer of 1 to 5.]

【００２７】
【化１０】
［式中、Ｒ ^１４は炭素数１〜４の直鎖状又は分岐鎖状のアルキレン基を表す。Ｒ ^１５は前記のＲ ^１３と同義である。ｉは０〜５の整数を表す。］[0027]
[Chemical formula 10]
[In the formula, R ¹⁴ represents a linear or branched alkylene group having 1 to 4 carbon atoms; R ¹⁵ has the same meaning as R ¹³ above; and i represents an integer of 0 to 5.]

【００３１】
【化１１】
［式中、Ｒ ^１６は前記のＲ ^１３と同義である。ｊは１〜５の整数を表す。］[0031]
[Chemical formula 11]
[In the formula, R ¹⁶ has the same meaning as R ¹³ above, and j represents an integer of 1 to 5.]

【００３２】
【化１２】
［式中、Ｒ ^１７は前記のＲ ^１４と、Ｒ ^１８は前記のＲ ^１３と夫々同義である。ｋは０〜５の整数を表す。］[0032]
[Chemical formula 12]
[In the formula, R ¹⁷ has the same meaning as R ¹⁴ defined above, and R ¹⁸ has the same meaning as R ¹³ defined above, and k represents an integer of 0 to 5.]

【００３６】
Ｒ^１９−（ＮＨ_２）ｌ（２ａ）
［式中、Ｒ ^１９は前記のＲ^９と、ｌはｆと夫々同義である。］[0036]
R ¹⁹ -(NH ₂ )l (2a)
[In the formula, R ¹⁹ has the same meaning as R ⁹ and l has the same meaning as f.]

【００３７】
Ｒ^２０−ＣＯＯＨ（２ｂ）
［式中、Ｒ ^２０は前記のＲ^１０と同義である。］[0037]
^R20- COOH (2b)
[In the formula, R20 has the ^same meaning as ^R10 above.]

【００４２】
【化１３】
［式中、Ｒ ^２１は前記のＲ ^１３と同義である。ｍは１〜５の整数を表す。］[0042]
[Chemical formula 13]
[In the formula, R21 has ^the same meaning as R13 , ^and m represents an integer of 1 to 5.]

【００４３】
【化１４】
［式中、Ｒ ^２２は前記のＲ ^１４と、Ｒ ^２３は前記のＲ ^１３と夫々同義である。ｎは０〜５の整数を表す。］[0043]
[Chemical formula 14]
[In the formula, R22 ^{has the same meaning as R14, and R23} ^has ^the same meaning ^{as R13} , and n represents an integer of 0 to 5.]

【００４７】
【化１５】
［式中、Ｒ ^２４は前記のＲ ^１３と同義である。ｏは１〜５の整数を表す。］[0047]
[Chemical formula 15]
[In the formula, R24 has ^the ^same meaning as R13 , and o represents an integer of 1 to 5.]

【００４８】
【化１６】
［式中、Ｒ ^２５は前記のＲ ^１４と、Ｒ ^２６は前記のＲ ^１３と夫々同義である。ｐは０〜５の整数を表す。］[0048]
[Chemical formula 16]
[In the formula, R25 ^{has the same meaning as R14, and R26} ^has ^the same meaning as R13 . p represents an integer of 0 to ^5. ]

Claims

A method for producing polylactic acid, characterized in that when polylactic acid is produced by dehydration polymerization of lactic acid or ring-opening polymerization of lactide, the polymerization is carried out in the presence of one or more amide compounds represented by general formula (1) or general formula (2).
^R1- (CONH- ^R2 )a (1)
[In the formula, ^R1 represents a saturated or unsaturated aliphatic polycarboxylic acid residue having 2 to 30 carbon atoms, a saturated or unsaturated alicyclic polycarboxylic acid residue, or an aromatic polycarboxylic acid residue; ^R2 represents an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms, a cycloalkyl group or cycloalkenyl group having 3 to 12 carbon atoms, a phenyl group, a naphthyl group, an anthryl group, or a group represented by formula (a), formula (b), formula (c), or formula (d); and a represents an integer of 2 to 6.]
[In the formula, ^R3 represents an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms, an alkoxy group having 1 to 18 carbon atoms, a cycloalkyl group having 3 to 18 carbon atoms, a phenyl group, or a halogen atom; and b represents an integer of 1 to 5.]
[In the formula, ^R4 represents a linear or branched alkylene group having 1 to 4 carbon atoms, ^R5 has the same meaning as ^R3 , and c represents an integer of 0 to 5.]
[In the formula, ^R6 has the same meaning as ^R3 , and d represents an integer of 1 to 5.]
[In the formula, ^R7 has the same meaning as ^R4 , and ^R8 has the same meaning as ^R3 . e represents an integer of 0 to 5.]

^R9- (NHCO- ^R10 )f (2)
[In the formula, ^R9 represents a saturated or unsaturated alicyclic polyamine residue or an aromatic polyamine residue having 3 to 25 carbon atoms; ^R10 has the same meaning as ^R2 above; and f represents an integer of 2 to 6.]

2. The method for producing polylactic acid according to claim 1, wherein the polylactic acid is produced by ring-opening polymerization of lactide.

A polylactic acid resin composition obtained by the method of claim 1 or 2.