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Poly(alpha-angelica lactone-co-epsilon-caprolactone) and preparation method thereof

A technology of angelica lactone and caprolactone, applied in the field of polyester polymer synthesis, to achieve a wide range of applications, expand the application range, and improve thermal stability and mechanical properties

Inactive Publication Date: 2014-04-30
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation of poly(α-angelicalide-co-ε-caprolactone) by copolymerization of α-angelicalide and ε-caprolactone derived from biomass has not been reported yet

Method used

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  • Poly(alpha-angelica lactone-co-epsilon-caprolactone) and preparation method thereof
  • Poly(alpha-angelica lactone-co-epsilon-caprolactone) and preparation method thereof
  • Poly(alpha-angelica lactone-co-epsilon-caprolactone) and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Under the protection of high-purity nitrogen, 5.88g (60mmol) α-angelica lactone, 6.84g (60mmol) ε-caprolactone and 0.04g (0.1mmol) stannous octoate were added to the reaction system in sequence. carry out copolymerization. Heated in an oil bath to increase the reaction temperature to 100° C., and reacted for 50 hours. After the reaction was completed, a crude poly(α-angelicalide-co-ε-caprolactone) product was obtained. Using methanol washing and centrifugal separation, the unreacted monomers and oligomers in the crude product of poly(α-angelicalide-co-ε-caprolactone) were removed to obtain poly(α-angelicalide-co -ε-caprolactone) products, the number average molecular weight range of the polyester is 3000-100000.

Embodiment 2

[0027] Under the protection of helium, 9.80g (100mmol) α-angelica lactone, 11.4g (100mmol) ε-caprolactone and 0.04g (0.1mmol) tetraphenyltin were added to the reaction system in sequence. carry out copolymerization. Heated in an oil bath to increase the reaction temperature to 150° C., and reacted for 30 hours. After the reaction was completed, a crude product of poly(α-angelicalide-co-ε-caprolactone) was obtained. Using acetonitrile washing and centrifugal separation, the unreacted monomers and oligomers in the crude product of poly(α-angelicalide-co-ε-caprolactone) were removed to obtain poly(α-angelicalide-co -ε-caprolactone) products, the number average molecular weight of the polyester ranges from 10,000 to 800,000.

Embodiment 3

[0029] Under the protection of argon, 9.80g (100mmol) α-angelica lactone, 11.4g (100mmol) ε-caprolactone and 0.4g (1mmol) triethylaluminum were added to the reaction system in sequence and carried out in a solvent-free system. copolymerization. Heated in an oil bath to increase the reaction temperature to 180° C., and reacted for 60 hours. After the reaction was completed, a crude product of poly(α-angelicalide-co-ε-caprolactone) was obtained. Washing with acetone and centrifuging to remove unreacted monomers and oligomers in the crude product of poly(α-angelicalide-co-ε-caprolactone) to obtain poly(α-angelicalide-co -ε-caprolactone) products, the number average molecular weight of the polyester ranges from 20,000 to 1,000,000.

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Abstract

The invention discloses poly(alpha-angelica lactone-co-epsilon-caprolactone), of which the structural formula is as shown in the specification, wherein m is smaller than 104 and greater than 10, n is smaller than 8772 and greater than 8. The poly(alpha-angelica lactone-co-epsilon-caprolactone) has the advantages of good biocompatibility and degradability, and wide application range.

Description

technical field [0001] The invention belongs to a polyester polymer synthesis, in particular to poly(α-angelicalide-co-ε-caprolactone) and a preparation method thereof. Background technique [0002] Aliphatic polyester materials have been extensively studied due to their good biocompatibility and biodegradability. In recent years, it has been widely used in the field of biomedicine, such as drug sustained release materials, implanted materials in vivo, surgical sutures, etc. In addition, it has also made some progress in the application of packaging industry and textile industry. With the depletion of petrochemical resources and the continuous deterioration of the human environment, it is imminent to seek alternative fuels and basic chemicals from petroleum sources. Biomass is the only renewable resource that can replace fossil resources in the production of chemicals. At present, there are more and more polymer products prepared from biomass-based monomers, and their appl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/08C08G63/78
Inventor 侯相林王玉琪齐永琴王英雄
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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