Mesoporous polydivinylbenzene material with hypersorption characteristic and synthesis method thereof

A technology of polydivinylbenzene and divinylbenzene, which is applied in the field of physical chemistry, can solve the problems of limited application of mesoporous polymers, no swelling property, high synthesis cost, and achieves simple and easy synthesis process and synthesis cost. The effect of low, strong adsorption capacity

Inactive Publication Date: 2008-03-19
JILIN UNIV
View PDF0 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the above-mentioned synthesis method being cumbersome and complicated, the requirements for synthesis conditions are relatively strict, the synthesis cost is high, and the synthesized samples have certain limitatio

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Mesoporous polydivinylbenzene material with hypersorption characteristic and synthesis method thereof
  • Mesoporous polydivinylbenzene material with hypersorption characteristic and synthesis method thereof
  • Mesoporous polydivinylbenzene material with hypersorption characteristic and synthesis method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] Example 1: Mesoporous polydivinylbenzene PDVB-THF-0 synthesized in a tetrahydrofuran system.

[0026] Dissolve 2g of divinylbenzene (DVB) monomer and 0.05g of azobisisobutyronitrile (AIBN) in 20mL of tetrahydrofuran. After stirring for 4 hours, transfer the above solution to the reactor and place it in an oven at 100℃. hour. The reaction kettle was taken out to volatilize the tetrahydrofuran to obtain mesoporous polydivinylbenzene PDVB-THF-0.

[0027] The results of the nitrogen adsorption experiment are shown in Figure 1. The type IV adsorption isotherm given by the sample PDVB-THF-0 indicates that the sample has a mesoporous structure and has a relatively narrow pore distribution (~3.9nm). Figure 2 is a transmission electron microscope (TEM) photo of the sample PDVB-THF-0. The result further confirms the result of nitrogen adsorption. From Figure 2 we can clearly see the existence of abundant mesopores. The BET specific surface area of ​​the sample PDVB-THF-0 is 557m 2 / g...

Example Embodiment

[0030] Example 2: Synthesis of mesoporous polydivinylbenzene PDVB-THF-x in a composite system of tetrahydrofuran and water.

[0031] Dissolve 2g of divinylbenzene (DVB) monomer and 0.05g of azobisisobutyronitrile (AIBN) in 20mL of tetrahydrofuran, then add xmL of water, where x=1.0, 1.2, 1.4, 1.6, 1.8, 2.0, and stir After 4 hours, the above solution was transferred to the reaction kettle and placed at 100°C for 48 hours. The reaction kettle was taken out to volatilize the tetrahydrofuran to obtain mesoporous polydivinylbenzene PDVB-THF-x.

[0032] In this embodiment, the amount of water is not limited to 1 to 2 mL, and the adjustment range can be 0 to 10 mL, and 1 to 2 mL is selected only for the convenience of discussion. When it is less than 1 mL, the adjustment effect of the pore size is not obvious. When it is greater than 2mL, a further increase in pore size can be achieved. The PDVB-THF-10 sample also has a higher specific surface area of ​​650m 2 / g. But the hole distributi...

Example Embodiment

[0035] Example 3: Synthesis of mesoporous polydivinylbenzene PDVB-acetone in an acetone system.

[0036] 20 mL of acetone was used instead of tetrahydrofuran in Example 1, and the remaining steps were the same as in Example 1. Referring to Figure 9, the nitrogen adsorption isotherm indicates that the sample has the characteristics of a composite pore structure of micropores and mesopores. From the results of BJH pore distribution and DFT pore distribution, it can be seen that the sample has both ~3.9nm mesopores and ~1.1nm pores. Micropores. BET specific surface area can reach 416m 2 / g, of which the micropores are 173m 2 / g, mesopore 242m 2 / g.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Apertureaaaaaaaaaa
Specific surface areaaaaaaaaaaa
Mesoporousaaaaaaaaaa
Login to view more

Abstract

The invention belonging to the technical field of material chemistry relates to a polydivinylbenzene material with a super strong absorption characteristic and a synthesis method, in particular to a mesoporous polymer in which polymeric chains loose enlace polydivinylbenzene as a framework, the specific surface area is 200 to 700 m 2/g, the water absorption capability is nearly 2.0 g/g, and the liquid absorption capability reaches 17 g/g. Divinylbenzene monomers are dispersed into organic solution, which is then added with azobisisobutyronitrile as initiator, after stirring, the solution is poured into a reaction kettle, and the mesoporous polymer material is synthesized by a solvent thermal process. The method of the invention avoids the traditional step of removing template agent in the synthesis of mesoporous materials, and the size of mesopore can be regulated by selecting different solution. The synthesis process is simple, requirement is low, and cost is low. The mesoporous polymer of the invention can be widely applied to absorbing organic pollutants, treating pollution caused by the leakage of organic matters.

Description

technical field [0001] The invention belongs to the technical fields of physical chemistry and material chemistry, and in particular relates to a preparation method of a porous polymer material. Background technique [0002] As a functional polymer material, mesoporous polymers have potential application prospects in many high-tech fields, such as biology, sensing, catalysis, adsorption and other fields. Porous polymers have shown unique properties. According to the nomenclature of inorganic mesoporous materials, mesoporous polymer materials refer to polymer materials with pore diameters ranging from 2 to 50 nm. However, the reports on mesoporous polymers are much less than those on mesoporous inorganic materials. This is because the synthesis method of inorganic mesoporous materials is not suitable for the polymerization conditions of most polymers. [0003] Generally, the synthesis of mesoporous polymers includes hard template synthesis, phase separation technology synth...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08F112/36C08F4/04C08J9/28B01J20/26
Inventor 肖丰收张永来刘福建魏舒
Owner JILIN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap