Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Hollow polymers capsules with meso-porous shell and preparation method thereof

A polymer, mesopore-containing technology, applied in microcapsule preparations, microsphere preparation and other directions, can solve the problems of high synthesis cost and achieve the effects of small size, simple process and uniform pore size distribution

Inactive Publication Date: 2009-02-11
ZHEJIANG UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And in the field of traditional molecular sieve synthesis, mesoporous molecular sieves are usually obtained by using tetraethyl orthosilicate (TEOS), silicon dioxide, and surfactants as raw materials through long-term reactions, and the synthesis cost is high.

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
  • Hollow polymers capsules with meso-porous shell and preparation method thereof
  • Hollow polymers capsules with meso-porous shell and preparation method thereof
  • Hollow polymers capsules with meso-porous shell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 0.36g of SDS and 1.8g of PEO 40 NE was dissolved in 36 g deionized water. The pH of the aqueous phase was fixed at 7 with equal amounts of ammonium dihydrogen phosphate and disodium hydrogen phosphate. Then 0.2g HD and 0.4g poly(methyl methacrylate-b-methacryloxypropyl trimethylsilane), wherein the average molecular weight of methyl methacrylate segment is 15000, methacryloxypropyl The average molecular weight of the trimethylsilane segment is 40,000, which is dissolved in 4 g of toluene. Then use an ultrasonic pulverizer (KS600) to ultrasonicate for 15 minutes at 0° C. under the condition that the intensity is 75%. SDS0.36g was added after the ultrasound, and finally the obtained miniemulsion was transferred to a 250ml medical bottle and sealed for preservation. Add NH to the sample after 4 days 4 Oh. After 5 days, the above four groups of samples were demulsified and centrifuged with methanol, washed with methanol and centrifuged again, and repeated three times t...

Embodiment 2

[0023] 0.36g of SDS and 1.8g of PEO 40 NE was dissolved in 36 g deionized water. The pH of the aqueous phase was fixed at 7 with equal amounts of ammonium dihydrogen phosphate and disodium hydrogen phosphate. Then 0.2g HD and 0.4g poly(methyl methacrylate-b-methacryloxypropyl trimethylsilane), wherein the average molecular weight of methyl methacrylate segment is 7000, methacryloxypropyl The average molecular weight of the trimethylsilane segment is 40,000, which is dissolved in 4 g of toluene. Then use an ultrasonic pulverizer (KS600) to ultrasonicate for 15 minutes at 0° C. under the condition that the intensity is 75%. SDS0.36g was added after the ultrasound, and finally the obtained miniemulsion was transferred to a 250ml medical bottle and sealed for preservation. Add NH to the sample after 4 days 4 Oh. After 5 days, the above four groups of samples were demulsified and centrifuged with methanol, washed with methanol and centrifuged again, and repeated three times to...

Embodiment 3

[0025] Mix 1.8g of SDS and 1.8g of PEO 40 NE was dissolved in 36 g deionized water. The pH of the aqueous phase was fixed at 7 with equal amounts of ammonium dihydrogen phosphate and disodium hydrogen phosphate. Then 0.2g HD and 0.4g poly(methyl methacrylate-b-methacryloxypropyl trimethylsilane), wherein the average molecular weight of methyl methacrylate segment is 15000, methacryloxypropyl The average molecular weight of the trimethylsilane segment is 40,000, which is dissolved in 4 g of toluene. Then use an ultrasonic pulverizer (KS600) to ultrasonicate for 15 minutes at 0° C. under the condition that the intensity is 75%. Add 0.36 g of SDS after the ultrasound, and finally transfer the obtained miniemulsion to a 250 ml medical bottle, and keep it sealed. Add NH to the sample after 4 days 4 Oh. After 5 days, the above four groups of samples were demulsified and centrifuged with methanol, washed with methanol and centrifuged again, and repeated three times to wash away ...

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
Thicknessaaaaaaaaaa
Total specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention discloses a hollow polymer capsule with a shell layer containing meso pores. The shell layer of the hollow polymer capsule is in meso pore material, the aperture of the meso pore material is 6-10nm, the external diameter of the shell layer is 100-200nm, the thickness of the shell layer is 10-30nm, the total specific surface area of the hollow polymer capsule is 106.2m<2> / g to 649.5m<2> / g and the total pore volume of the hollow polymer capsule is 0.4438cm<3> / g to 1.062cm<3> / g. The invention takes fine emulsion drops as micro-reactors to prepare the hollow polymer capsule with the shell layer containing meso pores, the technique is simple and the size of the prepared hollow capsule is small and the aperture of the shell layer is even. The hollow polymer capsule with the shell layer containing meso pores effectively improves the specific surface area of the material and is more conducive to improving the storage amount of guest molecules.

Description

technical field [0001] The invention relates to a hollow polymer capsule with mesoporous shell and a preparation method thereof. Background technique [0002] Nano-mesoporous materials have high specific surface area, regularly arranged and adjustable pores (2-50nm), which make them have great potential in the fields of catalytic chemistry, adsorption separation, drug sustained release, sensing technology, enzyme immobilization, ecology and nanomaterials. Many potential application values ​​have become current research hotspots. Mesoporous materials have large specific surface area and regular pore structure, which make them have high activity and great adsorption capacity. The research and development of nanomaterials have added many new uses to mesoporous materials. In recent years, research on mesoporous materials has mainly focused on the preparation and modification of M41S and SBA-15 series mesoporous molecular sieves. There are a large number of non-polymerized surf...

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): B01J13/02
Inventor 王果罗英武
Owner ZHEJIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com