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Biodegradable material containing ladder-like polysilsesquioxane and preparation method of biodegradable material

A technology for polysilsesquioxane and biodegradable materials, which is applied in the field of biodegradable materials containing ladder polysilsesquioxane and its preparation, can solve the problems of no application of biodegradable materials, etc. Biodegradability, effect of improving heat resistance

Active Publication Date: 2014-10-29
浙江燧宝新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although many organic-inorganic hybrid materials containing polysilsesquioxane have been reported, there is no application in biodegradable materials

Method used

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  • Biodegradable material containing ladder-like polysilsesquioxane and preparation method of biodegradable material
  • Biodegradable material containing ladder-like polysilsesquioxane and preparation method of biodegradable material
  • Biodegradable material containing ladder-like polysilsesquioxane and preparation method of biodegradable material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] To a clean 100 ml three-neck flask under nitrogen protection, add 20 g (4 mmol) of methyl ladder polysilsesquioxane with a molecular weight of 5000, and add 10 g of toluene, 6.4812 g (16 mmol) of stannous octoate, in After reacting at 80 °C for 30 min, 73.05 g (640 mmol) of caprolactone was added, polymerized at 80 °C for 4 h, the reaction was terminated with 50 g of methanol containing 5 wt% hydrochloric acid, and the product was washed three times with 150 g of methanol, and After vacuum drying for 24 h, 82.1 g of biodegradable material 1 containing trapezoidal polysilsesquioxane was obtained.

[0026] The thermal decomposition temperature of 5 wt% biodegradable material 1 containing trapezoidal polysilsesquioxane was 262 ℃ under the protection of nitrogen.

Embodiment 2

[0028] Add 20 g (0.4 mmol) of phenyl ladder polysilsesquioxane with a molecular weight of 50,000, 80 g of xylene, and 0.64812 g (1.6 mmol) of stannous octoate to a clean 1000 ml three-necked flask under nitrogen protection. , after reacting at 140 °C for 90 min, 73.05 g (640 mmol) of caprolactone was added, polymerized at 140 °C for 0.5 h, the reaction was terminated with 50 g of methanol containing 5 wt% hydrochloric acid, and the product was washed three times with 150 g of methanol , and vacuum-dried for 24 h to obtain 66.35 g of biodegradable material 2 containing trapezoidal polysilsesquioxane.

[0029] The thermal decomposition temperature of 5 wt% biodegradable material 2 containing trapezoidal polysilsesquioxane was 268 ℃ under the protection of nitrogen.

[0030] Degradation of the polymer: The product obtained in this example was degraded with porcine insulin in a buffer solution with a pH of 7 at 37°C, and the results were as follows:

[0031] Optical microscope ma...

Embodiment 3

[0034] To a clean 1000 ml three-neck flask under argon protection, add 20 g (2 mmol) of phenyl ladder polysilsesquioxane with a molecular weight of 10,000, and add 60 g of toluene, 160 ml (16 mmol, the concentration is 0.1 mol / L, the solvent is toluene) n-butyllithium, after reacting at 100 °C for 60 min, add 230.6 g (1.6 mol) lactide, polymerize at 100 °C for 12 h, add 500 g methanol containing 5 wt% hydrochloric acid The reaction was terminated, and the product was washed three times with 1500 g of methanol, and dried in vacuum for 24 h to obtain 143.8 g of biodegradable material 3 containing trapezoidal polysilsesquioxane.

[0035] The thermal decomposition temperature of 5 wt% biodegradable material 3 containing trapezoidal polysilsesquioxane was 264 ℃ under the protection of nitrogen.

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Abstract

The invention relates to the technical field of organic silicon materials. In order to solve problems of heat resistance of the existing aliphatic polyester materials, the invention discloses a biodegradable material containing ladder-like polysilsesquioxane and a preparation method of the biodegradable material. The biodegradable material containing the ladder-like polysilsesquioxane is prepared by carrying out polymerization reaction on hydroxyl end-capped ladder-like polysilsesquioxane and aliphatic cyclic ester monomers in the presence of a catalyst. The method disclosed by the invention is used for preparing a biodegradable segmented copolymer by virtue of ring opening polymerization of aliphatic cyclic ester monomers, so that biodegradable performances of the materials are guaranteed, and heat resistance of the aliphatic polyester is improved.

Description

technical field [0001] The invention relates to the technical field of organosilicon materials, in particular to a biodegradable material containing trapezoidal polysilsesquioxane and a preparation method thereof. Background technique [0002] Aliphatic polyesters (polycaprolactone, polylactide, polycarbonate, etc.) are widely used in drug sustained release, fabric finishing, target To the fields of medicine and environment-friendly materials. However, their thermal resistance and mechanical properties are often unsatisfactory, limiting their applications. In recent years, trapezoidal polysilsesquioxanes have attracted attention due to their good solubility, temperature resistance, low dielectric constant, mechanical properties, and chemical stability. [0003] Although many organic-inorganic hybrid materials containing polysilsesquioxane have been reported, there is no application in biodegradable materials. The Chinese patent application number 201310096492.4 discloses ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/695C08G64/30C08G64/18
Inventor 杨雄发曹诚陈忠红刘佳蒋剑雄吴连斌华西林来国桥陈利民
Owner 浙江燧宝新材料技术有限公司
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