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Degradable unsaturated polyesteramide resin and synthesis method thereof

A technology of polyester amide and synthesis method, which is applied in the field of polymer materials, can solve the problems of consumption of forest resources, pollution application, incomplete degradation, etc., and achieve the effect of reducing soil alkalinity

Inactive Publication Date: 2008-04-30
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The application of other existing degradable polymer materials is limited due to high cost, incomplete degradation, poor performance, large consumption of forest resources, or easy pollution in the preparation process.
Moreover, most of the existing degradable polymer materials are only satisfied with rotting in the environment, and their reuse rate is low.

Method used

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  • Degradable unsaturated polyesteramide resin and synthesis method thereof
  • Degradable unsaturated polyesteramide resin and synthesis method thereof
  • Degradable unsaturated polyesteramide resin and synthesis method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: One of the synthetic methods of unsaturated polyester amide resin:

[0034] Mix 0.40 mol of maleic anhydride, 0.1 mol of ethanolamine and 0.31 mol of ethylene glycol, put it into a 250ml three-necked flask with a water separator, place it in a silicone oil bath, stir it electrically, and react at 100°C for 20 minutes. The temperature was raised to 150° C. for 40 minutes for melt polymerization in a nitrogen atmosphere, then the temperature was raised to 180° C. for 120 minutes for melt polymerization in a nitrogen atmosphere, and then the temperature was raised to 200° C. for 120 minutes for melt polymerization in a nitrogen atmosphere. When the distilled reaction water reaches 80% of the theoretical amount, the polymerization is stopped, the temperature is lowered to 150° C., and poured out. After cooling, a light brown transparent semi-solid unsaturated polyester amide resin is obtained.

Embodiment 2

[0035] Embodiment 2: two of the synthetic method of unsaturated polyester amide resin:

[0036] Mix 0.40 mol of maleic anhydride, 0.1 mol of hexamethylenediamine and 0.33 mol of ethylene glycol, put it into a 250ml three-necked flask with a water separator, place it in a silicone oil bath, stir it electrically, and react at 100°C for 20 minutes. Heating up to 150°C, melt polymerization in a nitrogen atmosphere for 40 minutes, then raising the temperature to 180°C, melt polymerization in a nitrogen atmosphere for 120 minutes, then raising the temperature to 200°C, melt polymerization in a nitrogen atmosphere for 60 minutes, and melt polymerization in a nitrogen atmosphere for 60 minutes. When the distilled reaction water reaches 80% of the theoretical amount, the polymerization is stopped, the temperature is lowered to 150° C., and poured out. After cooling, a light brown transparent semi-solid unsaturated polyester amide resin is obtained.

Embodiment 3

[0037] Embodiment 3: three of the synthetic method of unsaturated polyester amide resin:

[0038] Mix 0.40 mol of maleic anhydride, 0.2 mol of lysine and 0.44 mol of ethylene glycol, put it into a 250ml three-neck flask with a water separator, place it in a silicone oil bath, stir it electrically, and react at 120°C for 60 minutes. Heating up to 150°C, melt polymerization in a nitrogen atmosphere for 60 minutes, then raising the temperature to 180°C, melt polymerization in a nitrogen atmosphere for 120 minutes, then raising the temperature to 200°C, melt polymerization in a nitrogen atmosphere for 60 minutes, and melt polymerization in a nitrogen atmosphere for 60 minutes. When the distilled reaction water reaches 90% of the theoretical amount, the polymerization is stopped, the temperature is lowered to 150° C., and poured out. After cooling, a light brown transparent semi-solid unsaturated polyester amide resin is obtained.

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PUM

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Abstract

The invention adopts a melt polycondensation method. A few of monomers of C2-5 aliphatic dibasic alcohol, diethylene glycol, polyglycol, fumaric acid, maleic anhydride, lactic acid, glycolic acid, ethanolamine, C2 to C12 aliphatic diamine, glutamic acid, lysine, glycine, etc. are taken as basic materials to be synthesized to obtain non toxic unsaturated polyester-amide resin with adjustable degradation rate and lower cost; wherein, the partial fumaric acid or maleic anhydride can be replaced with phthalic anhydride, isophthalic acid, or adipic acid. The resin yearns for being used as matrix resin of medical bone internal fixation material, tissue engineering scaffold material, bone tissue temporary substitutes, environmental protection type bonding agent, environmental protection type fiberglass reinforced plastics, environmental protection type coating material, disposable tableware, packing material, shopping bags, disposable bags, drug coating or capsule, drug delivery (controlled-release) material, agricultural mulching films, etc., and can be recovered to be utilized.

Description

technical field [0001] The invention relates to a chemical synthesis environment and biodegradable polymer materials and methods. Using C 2-5 Fatty diols, ethylene glycol, polyethylene glycol, fumaric acid, maleic anhydride, lactic acid, glycolic acid, ethanolamine, C 2 ~C 12 Some of the fatty diamines, glutamic acid, lysine, glycine and other monomers are used as basic raw materials to synthesize unsaturated polyester amide resins with adjustable degradation rate, non-toxic and low cost. The resin can be used to prepare biomedical materials, drug slow (controlled) release materials and environmental protection materials. technical background [0002] Degradable polymer materials with good biocompatibility, such as polylactic acid, have been widely used in the fields of biomedical materials and environmental protection materials, and have attracted people's attention. [0003] Biodegradable biomedical materials include polylactic acid, polyanhydride, polyamino acid, etc....

Claims

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Application Information

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IPC IPC(8): C08G69/44C08G69/48
Inventor 郭文迅石宗利方敏艾永平孙晓
Owner HUNAN UNIV
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