Unlock instant, AI-driven research and patent intelligence for your innovation.

Hydrophobic porous polymer monolith with bird's nest structure and preparation method thereof

A technology of porous polymer and monolithic materials, which is applied in the field of hydrophobic porous polymer monolithic materials, can solve the problems of too high requirements for living radical polymerization conditions, narrow selection of monomers, inconvenient operation, etc., and achieves easy popularization and application, good Hydrophobic performance, low cost effect

Active Publication Date: 2019-04-26
ZHENGZHOU UNIV
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these two methods have great limitations: the selection range of monomers for stepwise polymerization is very narrow; the requirements for living radical polymerization are too high, and the operation is inconvenient
[0006] In the prior art, there is no relevant report on the porous polymer monolithic material with bird's nest structure

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
  • Hydrophobic porous polymer monolith with bird's nest structure and preparation method thereof
  • Hydrophobic porous polymer monolith with bird's nest structure and preparation method thereof
  • Hydrophobic porous polymer monolith with bird's nest structure and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0038] The method for preparing the porous polymer monolithic material of the present invention can adopt the following specific implementation steps:

[0039] 1) Preparation of polymer solution: Dissolve a certain quality of polymer in a certain volume of solvent, heat and stir to obtain a clear and stable polymer solution;

[0040] 2) Adding a non-solvent: cooling the polymer solution obtained in step a to room temperature, and adding a non-solvent under stirring conditions;

[0041] 3) Phase separation: After the non-solvent is added, the solution is placed in the refrigerator and kept at a constant temperature for 24 hours at a certain phase separation temperature. After the phase separation is completed, the porous polymer monolithic material is obtained;

[0042] 4) Residual solvent extraction: soak the porous polymer monolithic material obtained in step 3 in water until the residual solvent is completely replaced by water;

[0043] 5) Freeze drying: freeze-dry the porous polymer ...

Embodiment 1

[0048] Example 1 Preparation of a hydrophobic porous polymer monolithic material with a bird's nest structure

[0049] The specific preparation steps are:

[0050] (1) Preparation of polymer solution: Dissolve 7g of PC pellets in 100ml of THF solvent, heat at 40°C and stir magnetically until the dissolution is complete, to obtain a polymer solution with a concentration of 0.07g / ml;

[0051] (2) Add non-solvent: After the polymer solution is cooled to room temperature, add deionized water dropwise under magnetic stirring, and add 7 mL of non-solvent for every 100 mL of polymer solution;

[0052] (3) Phase separation: Pour the solution into a test tube and place it in a refrigerator to maintain a certain phase separation temperature (4°C). At this time, phase separation occurs and a white cylindrical porous polymer monolith is gradually formed;

[0053] (4) Solvent extraction: take out the test tube after 24h and soak it in 500mL water, change the water 3 times a day, soak for 3 days unti...

Embodiment 2

[0055] Example 2 Preparation of a hydrophobic polymer porous monolithic material with a bird's nest structure

[0056] The specific preparation steps are:

[0057] (1) Preparation of polymer solution: Dissolve 8g PC pellets in 100ml THF solvent, heat at 40°C and magnetically stir until the dissolution is complete, to obtain a polymer solution with a concentration of 0.08g / ml;

[0058] (2) Add non-solvent: After the polymer solution is cooled to room temperature, add deionized water dropwise under magnetic stirring, and add 7 mL of non-solvent for every 100 mL of polymer solution;

[0059] (3) Phase separation: Pour the solution into a test tube and place it in a refrigerator to maintain a certain phase separation temperature (4°C). At this time, phase separation occurs and a white cylindrical porous polymer monolith is gradually formed;

[0060] (4) Solvent extraction: take out the test tube after 24h and soak it in 500mL water, change the water 3 times a day, soak for 3 days until the ...

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
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the field of porous polymer materials and particularly relates to a hydrophobic porous polymer integral material with a nest-like structure. The hydrophobic porous polymer integral material has the nest-like structure, and the nest-like structure is a structure consists of a fibrous framework and three-dimensional communicating pores. The obtained hydrophobic porous polymer integral material has the nest-like structure and has good hydrophobic performance. In addition, the prepared hydrophobic porous polymer integral material is narrow in pore diameter distribution and large in specific surface area. Furthermore, a method is simple in preparation process and high in efficiency and does not need complicated devices, an adopted solvent extraction and freeze-drying method can completely retain the porous structure of the material, a selected matrix material is a polymer, and the integral material is excellent in performance, wide in source, low in cost and easy to popularize and apply.

Description

Technical field [0001] The invention belongs to the field of porous polymer materials, and specifically relates to a hydrophobic porous polymer monolithic material with a bird's nest structure. Background technique [0002] As a new type of material, porous polymer monolithic material has become a new research hotspot in the field of materials due to its advantages of good mass transfer efficiency, fast adsorption rate, and easy chemical modification. Due to the combination of the excellent properties of porous materials and polymer matrix, porous polymer monolithic materials have developed rapidly in recent years and have received extensive attention from industry and academia. They have been applied in fields such as chromatography separation, oil-water separation, and catalyst support. [0003] At present, the preparation of porous polymer monolithic materials mostly adopts free radical polymerization. The interaction between polymer chains that grow rapidly during the polymeriz...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C08J9/28C08L69/00C08L33/12C08L27/16C08L67/04
CPCC08J9/283C08J2327/16C08J2333/12C08J2367/04C08J2369/00
Inventor 王波陈薇薇李真真张路曈翟婉丽刘春太
Owner ZHENGZHOU UNIV