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

Automatic-assembling method for preparing molecular imprint polyaniline nanocomposite

A technology of nanocomposites and imprinted polymers, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of destroying the preferential hydrogen bonding between template molecules and functional monomers, and limited research, so as to broaden the preparation and application environment , high selectivity, fast adsorption effect

Inactive Publication Date: 2014-03-05
JIANGNAN UNIV
View PDF8 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, currently studied molecularly imprinted polymers are mainly studied in organic systems, while studies in aqueous phases are very limited.
The main difficulty is that in the aqueous phase, due to the competition of the polar solvent water, the preferential hydrogen bonding between the template molecule and the functional monomer is broken.

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
  • Automatic-assembling method for preparing molecular imprint polyaniline nanocomposite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Weigh 0.72g of acrylic acid (AA), 1.12g of N-vinylpyrrolidone (VP), 2.08g of styrene (St), 0.0392g of azobisisobutyronitrile (AIBN) in a 50mL round bottom flask, Add 30 mL of dioxane, react in an 80°C oil bath for 24h, precipitate with petroleum ether, and dry in an oven at 40°C. Weigh 0.2g of polymer P(AA-co-VP-co-St) and dissolve it in 10mL of N,N-dimethylformamide, and add template molecules, the amount of template molecules added is the mass of random polymer Stir to fully dissolve the template molecules and complex with the random polymer; slowly add ultra-pure water, a poor solvent for the amphiphilic polymer, under stirring until the volume of the solution is approximately 1.5 times the initial volume, so that the random polymer Micro-phase separation, self-assembly and coating template molecules to form imprinted polymer micelles solution, continue to stir at a constant speed for 3 hours, so that the non-returning polymers are completely assembled; add the impri...

Embodiment 2

[0019] Weigh 0.1.44g of acrylic acid (AA), 1.12g of N-vinylpyrrolidone (VP), 2.08g of styrene (St), 0.0462g of azobisisobutyronitrile (AIBN) in a 50mL round bottom flask , add 30mL of dioxane, react in an 80°C oil bath for 24h, precipitate with petroleum ether, and dry in an oven at 40°C. Weigh 0.2g of polymer P(AA-co-VP-co-St) and dissolve it in 10mL of N,N-dimethylformamide, and add template molecules, the amount of template molecules added is the mass of random polymer Stir to fully dissolve the template molecules and complex with the random polymer; slowly add ultra-pure water, a poor solvent for the amphiphilic polymer, under stirring until the volume of the solution is roughly twice the initial volume, so that the random polymer Micro-phase separation, self-assembly and coating template molecules to form imprinted polymer micelles solution, continue to stir at a constant speed for 3 hours, so that the non-returning polymers are completely assembled; add the imprinted pol...

Embodiment 3

[0021] Weigh 2.16g of acrylic acid (AA), 1.12g of N-vinylpyrrolidone (VP), 2.08g of styrene (St), 0.0536g of azobisisobutyronitrile (AIBN) in a 50mL round bottom flask, Add 30 mL of dioxane, react in an 80°C oil bath for 24h, precipitate with petroleum ether, and dry in an oven at 40°C. Weigh 0.2g of polymer P(AA-co-VP-co-St) and dissolve it in 10mL of N,N-dimethylformamide, and add template molecules, the amount of template molecules added is the mass of random polymer Stir to fully dissolve the template molecules and complex with the random polymer; slowly add ultra-pure water, a poor solvent for the amphiphilic polymer, under stirring until the volume of the solution is approximately 3 times the initial volume, so that the random polymer Micro-phase separation, self-assembly and coating template molecules to form imprinted polymer micelles solution, continue to stir at a constant speed for 3 hours, so that the non-returning polymers are completely assembled; add the imprint...

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

No PUM Login to View More

Abstract

The invention provides an automatic-assembling method for preparing a molecular imprint polyaniline nanocomposite, and relates to the technical field of high molecular material science. The preparation method comprises the followings steps: firstly, synthesizing a random amphiphilic copolymer through free radical polymerization; preparing micelle of polymer by adopting an automatic-assembling method; synthesizing the molecular imprint polyaniline nanocomposite through in-situ polymerization by taking a safety hazard factor in food as a template molecule, wherein the molecular imprint polyaniline nanocomposite is applied to food as an absorbent for the safety hazard factor. According to the invention, electric conductive polyaniline, the nano technique and the molecular imprint technique are combined, and the preparation method is simple, is controllable in condition, and is low in cost; the prepared molecular imprint polyaniline nanocomposite has the advantages of specific recognition capability on the template molecule, high selectivity, high adsorption speed, capability of being used repeatedly, environment friendliness and the like.

Description

Technical field: [0001] The invention provides a self-assembly method for preparing molecularly imprinted polyaniline nanocomposites, and relates to the technical field of polymer material science. Background technique: [0002] Molecularly imprinted polymers have cavities whose shapes match those of substrate molecules, and functional groups with specific arrangements that can recognize substrate molecules. Compared with conventional and conventional separation and analysis media, the outstanding feature of molecularly imprinted polymers based on molecular recognition is their high selectivity for the separated substance or analyte. Most of the molecular recognition sites on the imprinted polymers prepared by traditional methods are embedded in polymers with high cross-linking density, which leads to molecularly imprinted materials with high molecular recognition selectivity, but with template molecular washing. However, it has disadvantages such as difficult detachment, l...

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): C08G73/02C08F212/08C08F226/10C08F220/06C08J3/02C08J9/26B01J20/26B01J20/30
Inventor 罗静孙军李荣耀周乃鹏刘晓亚
Owner JIANGNAN 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