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Degradable unsaturated polyester amide urea copolymer and synthesizing method

A polyester amide urea, synthesis method technology, applied in the field of polymer materials, can solve the problems of poor performance, high cost, application limitation and the like

Inactive Publication Date: 2008-10-29
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some existing biomedical materials have high cost and poor performance, which limits their application.

Method used

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  • Degradable unsaturated polyester amide urea copolymer and synthesizing method
  • Degradable unsaturated polyester amide urea copolymer and synthesizing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: One of the synthetic methods of unsaturated polyester amide urea resin:

[0025] Mix 0.40 mol of maleic anhydride, 0.1 mol of urea and 0.31 mol of neopentyl 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 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 30 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 urea resin is obtained.

Embodiment 2

[0026] Embodiment 2: the synthetic method two of unsaturated polyester amide urea resin:

[0027] Mix 0.20 moles of maleic anhydride, 0.20 moles of phthalic anhydride, 0.1 moles of urea, 0.23 moles of dipropylene glycol, and 0.10 moles of ethylene glycol, put them into a 250ml three-necked flask with a water separator, and place them in a silicone oil bath , electric stirring, 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 yellow transparent semi-solid unsaturated polye...

Embodiment 3

[0028] Embodiment 3: the synthetic method three of unsaturated polyester amide urea resin:

[0029] Mix 0.20 moles of maleic anhydride, 0.20 moles of phthalic anhydride, 0.1 moles of urea, 0.20 moles of propylene glycol, and 0.10 moles of polyethylene glycol (400), put them into a 250ml three-necked flask with a water separator, and place In a silicone oil bath, with electric stirring, react at 100°C for 20 minutes. Raise the temperature to 150°C, melt polymerization in a nitrogen atmosphere for 40 minutes, then raise the temperature to 180°C, melt polymerization in a nitrogen atmosphere for 120 minutes, then raise the temperature to 200°C, melt polymerization in a nitrogen atmosphere for 60 minutes, and the reaction water to be distilled reaches the theoretical amount At 80% of the concentration, the polymerization was stopped, the temperature was lowered to 150°C and poured out, and a light yellow transparent semi-solid unsaturated polyester amide urea resin was obtained aft...

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Abstract

The invention relates to a melt polycondensation method for the synthesis of unsaturated polyester amide urea resin from dipropylene glycol or neopentyl glycol or polyethylene glycol, transbutene dioic acid or maleic anhydride and urea as raw materials. The synthesized unsaturated polyester amide urea resin has the advantages of controllable degradation rate, no toxicity and low cost. The transbutene dioic acid or maleic anhydride can be partially replaced by benzene anhydride, isophthalic acid or adipic acid. The dipropylene glycol or neopentyl glycol or polyethylene glycol can be partially replaced by ethylene glycol or propylene glycol. The resin is used as matrix of fracture internal fixation material, tissue engineering scaffold, bone graft substitute, environment-friendly binder, environment-friendly glass-reinforced plastics, environment-friendly painting, disposable tableware, packaging material, shopping bag, garbage bag, pharmaceutical coating or capsule, pharmaceutical slow- / controlled-release material, agricultural mulch film, etc. furthermore, the resin is recoverable.

Description

technical field [0001] The invention relates to a chemical synthesis environment and biodegradable polymer materials and methods. Dipropylene glycol, neopentyl glycol, polyethylene glycol, fumaric acid, maleic anhydride, urea and other monomers are used as basic raw materials to synthesize non-toxic, Lower cost unsaturated polyester amide urea resin. This type of resin can be used as degradable materials for disposable products, medical bone internal fixation materials, tissue engineering scaffold materials, bone tissue temporary substitutes, drug coating or capsules, drug sustained release materials, UV curing inks, UV curing Base materials for paper coating, environment-friendly FRP, adhesives, environment-friendly UV curing or room temperature curing coatings. technical background [0002] Existing light-curing coatings all need to use toxic photoinitiators and small molecule volatile cross-linking agents, causing pollution to the environment. Solvent-based paint emits...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G69/44
Inventor 郭文迅石宗利方敏艾永平孙晓孙翔月
Owner HUNAN UNIV
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