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Preparation method of glycidyl methacrylate communicating porous material with high epoxy group content

A technology of polymethacrylic acid and glycidyl ester, which is applied in the field of preparation of porous functional polymer materials, can solve the problems of reducing epoxy group content and affecting applications, and achieve high epoxy group content and narrow cell pore size distribution Effect

Active Publication Date: 2013-11-27
ZHENGZHOU TOBACCO RES INST OF CNTC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in these reported methods, due to the high temperature (50-70°C) required to initiate the polymerization , the epoxy group in PolyGMA inevitably undergoes a certain degree of ring-opening hydrolysis (A . Barbetta, M. Dentini, L. Leandri, G. Ferraris, A. Coletta, React. Funtc. Polym., 2009, 69, 724), which reduces the content of epoxy groups and affects subsequent applications
However, there is no report on the preparation of high epoxy PolyGMA by γ-ray-induced high internal phase emulsion polymerization.

Method used

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  • Preparation method of glycidyl methacrylate communicating porous material with high epoxy group content
  • Preparation method of glycidyl methacrylate communicating porous material with high epoxy group content
  • Preparation method of glycidyl methacrylate communicating porous material with high epoxy group content

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Experimental program
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Effect test

Embodiment 1

[0029] Prepare the oil phase first, the composition is 2ml GMA, 3ml divinylbenzene, 5ml toluene, 1g TWEEN 60, and then prepare the water phase, the composition is 56ml water and 0.5g calcium chloride. Under high-speed stirring, slowly add the water phase into the oil phase to form a high internal phase emulsion, and seal it after passing nitrogen gas for 10 minutes. Then put it into the 1.3×10 15 Q 60 In the Co source, the dose rate was 36Gy / min, and the irradiation time was 24h. The obtained solid product was extracted with water and ethanol for 24 hours respectively, and dried in a vacuum oven to obtain PolyGMA. The material has a ratio of epoxy group peak area to ester group peak area of ​​0.235.

Embodiment 2

[0031] Prepare the oil phase first, the composition is 2ml GMA, 3ml divinylbenzene, 5ml toluene, 1g sorbitan monooleate, and then prepare the water phase, the composition is 56ml water and 0.5g calcium chloride. Under high-speed stirring, slowly add the water phase into the oil phase to form a high internal phase emulsion, and seal it after nitrogen gas for 20 minutes. Then put it into the 1.3×10 15 Q 60 In the Co source, the dose rate was 36Gy / min, and the irradiation time was 24h. The obtained solid product was extracted with water and ethanol for 24 hours respectively, and dried in a vacuum oven to obtain PolyGMA. The material has a ratio of epoxy group peak area to ester group peak area of ​​0.223.

Embodiment 3

[0033] Prepare the oil phase first, the composition is 3ml GMA, 2ml divinylbenzene, 5ml toluene, 1g caprylic glyceride, and then prepare the water phase, the composition is 56ml water and 0.5g calcium chloride. Under high-speed stirring, slowly add the water phase into the oil phase to form a high internal phase emulsion, and seal it after passing nitrogen gas for 15 minutes. Then put it into the 1.3×10 15 Q 60 In the Co source, the dose rate was 36Gy / min, and the irradiation time was 24h. The obtained solid product was extracted with water and ethanol for 24 hours respectively, and dried in a vacuum oven to obtain PolyGMA. The ratio of epoxy group peak area to ester group peak area of ​​this material is 0.231.

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Abstract

The invention discloses a preparation method of a glycidyl methacrylate communicating porous material with high epoxy group content. The preparation method is characterized in that through high internal phase emulsion polymerization of glycidyl methacrylate (GMA) initiated by constant-temperature radiation, a communicating porous material of glycidyl methacrylate with high epoxy group content is obtained, and raw materials comprise glycidyl methacrylate, cross-linking agents, pore-foaming agents, emulsifying agents, water, inorganic salt and initiating agents. Compared with the reported glycidyl methacrylate communicating porous material, the glycidyl methacrylate communicating porous material prepared by using the method has the advantages of relatively high epoxy group content and relatively narrow cell apertures, and subsequent application of the glycidyl methacrylate communicating porous material is facilitated.

Description

[0001] technical field [0002] The invention belongs to the technical field of preparation of porous functional polymer materials, in particular to a preparation method of polyglycidyl methacrylate interconnected porous materials with high epoxy group content. Background technique [0003] Polymer interconnected porous materials have the advantages of high porosity, low density, large specific surface area and good material transport ability, etc., and have high potential in adsorption and separation, catalysis, sensors, molecular recognition, biological tissue engineering and environmental science. Therefore, it has attracted great interest (Zhang H, Cooper A I. Soft Matter, 2005, 1: 107-113; Chang Haitao, Lu Zaijun, Chemical Bulletin, 2007, (11): 829-833. ). The reactivity of epoxy groups can be used for enzyme immobilization (G. Bayramo?lu, B. Kaya and M. Y. Aric. Food Chem., 2005, 92, 261; G. Bayramo?lu, S. Akg?l, A. Bulut, A. Denizli and M. Y. Arica, Biochem. Eng. J....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/32C08F212/36C08F2/46C08F2/24C08J9/28
Inventor 杨松聂聪张晓兵王宜鹏孙学辉孙培健赵乐刘惠民
Owner ZHENGZHOU TOBACCO RES INST OF CNTC
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