RU2009148158A - METHOD FOR PRODUCING BIODEGRADABLE POLYMER - Google Patents
METHOD FOR PRODUCING BIODEGRADABLE POLYMER Download PDFInfo
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- RU2009148158A RU2009148158A RU2009148158/04A RU2009148158A RU2009148158A RU 2009148158 A RU2009148158 A RU 2009148158A RU 2009148158/04 A RU2009148158/04 A RU 2009148158/04A RU 2009148158 A RU2009148158 A RU 2009148158A RU 2009148158 A RU2009148158 A RU 2009148158A
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- magnesium
- biodegradable polymer
- catalyst
- producing
- producing biodegradable
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Abstract
Способ получения биоразлагаемого полимера на основе полилактида путем полимеризации в присутствии катализатора при нагревании, отличающийся тем, что процесс ведут с использованием в качестве катализатора смеси, состоящей из метоксидов магния с β-дикарбонильными сложными эфирами общей формулы ! , ! где R1 - алкил C1-С2, R2 - СОСН3, COOR1, CN, причем мольное соотношение лактид:метоксид магния:сложный эфир составляет от 20000:1:4 до 10000:3:6. A method for producing a biodegradable polylactide-based polymer by polymerization in the presence of a catalyst by heating, characterized in that the process is carried out using a mixture consisting of magnesium methoxides with β-dicarbonyl esters of the general formula as a catalyst! ! where R1 is alkyl C1-C2, R2 is COCH3, COOR1, CN, and the molar ratio of lactide: magnesium methoxide: ester is from 20,000: 1: 4 to 10,000: 3: 6.
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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RU2009148158/04A RU2478107C2 (en) | 2009-12-25 | 2009-12-25 | Method of producing biodegradable polymer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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RU2009148158/04A RU2478107C2 (en) | 2009-12-25 | 2009-12-25 | Method of producing biodegradable polymer |
Publications (2)
Publication Number | Publication Date |
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RU2009148158A true RU2009148158A (en) | 2011-09-20 |
RU2478107C2 RU2478107C2 (en) | 2013-03-27 |
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Family Applications (1)
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RU2009148158/04A RU2478107C2 (en) | 2009-12-25 | 2009-12-25 | Method of producing biodegradable polymer |
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RU (1) | RU2478107C2 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2123968A1 (en) * | 1971-05-14 | 1972-11-23 | Schering Ag, 1000 Berlin Und 4619 Bergkamen | Process for the production of polyesters by polymerizing epsilon-caprolactone |
US5235031A (en) * | 1992-03-13 | 1993-08-10 | E. I. Du Pont De Nemours And Company | Polymerization of lactide |
US5338822A (en) * | 1992-10-02 | 1994-08-16 | Cargill, Incorporated | Melt-stable lactide polymer composition and process for manufacture thereof |
JP5500451B2 (en) * | 2007-04-04 | 2014-05-21 | インディアン インスティテュート オブ テクノロジー, ボンベイ | Process for producing lactic acid polymers with high crystallinity and high molecular weight |
RU2355694C2 (en) * | 2007-04-20 | 2009-05-20 | Игорь Леонидович Федюшкин | Polylactide obtainment catalyst and method of its synthesis |
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2009
- 2009-12-25 RU RU2009148158/04A patent/RU2478107C2/en not_active IP Right Cessation
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RU2478107C2 (en) | 2013-03-27 |
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MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20130205 |