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Polymer micelle modified by nano copper oxide and preparation method of polymer micelle

A technology of nano-copper oxide and polymer glue, which is applied in chemical instruments and methods, chemical/physical processes, colloid chemistry, etc., can solve problems such as unfavorable large-scale industrial production, easy agglomeration of nano-copper oxide, and affecting performance. Achieving good biodegradability, avoiding the problem of organic solvent solvent residue, and preventing the effect of agglomeration

Active Publication Date: 2013-04-17
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent (Patent No. CN102127779A, published on September 26, 2007) discloses the application and preparation method of nano-copper oxide. The preparation method is simple, but the prepared nano-copper oxide is prone to agglomeration, which seriously affects its performance. Another Chinese patent (Patent No. CN101041119A, published on December 25, 2010) discloses a method for preparing copper oxide nanotubes. The electrochemical method is used to prepare copper oxide nanotubes. The method is cumbersome and difficult to operate, which is not conducive to large-scale Industrial production

Method used

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  • Polymer micelle modified by nano copper oxide and preparation method of polymer micelle
  • Polymer micelle modified by nano copper oxide and preparation method of polymer micelle
  • Polymer micelle modified by nano copper oxide and preparation method of polymer micelle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] (1) Macromolecular initiator PEO 43 -Synthesis of Br

[0056] Azeotropically distill 10g of flaky PEO and 250mL of toluene to remove excess water, lower the temperature of the system to room temperature, change to an ice-water bath, add 2mL of triethylamine, 1.9mL of 2-bromoisobutyryl bromide in 20mL of toluene (The molar ratio of polyoxyethylene, 2-bromoisobutyryl bromide and triethylamine is 1:3:2.8), react for 20h, filter, extract, collect the organic phase, dry, filter, precipitate, suction filter, vacuum dry , to get the white powdery macromolecular initiator PEO 43 -Br.

[0057] (2) ATRP synthetic polymer

[0058] 0.5g of macroinitiator PEO 43 -Br, 0.035g of catalyst cuprous bromide (CuBr), 0.040g of ligand PMDETA (the molar ratio of macroinitiator PEO-Br, ligand PMDETA, and catalyst is 1:1:1), 3.16 g tert-butyl acrylate (tBA) and 2mL methanol solvent were added to a 50mL round bottom flask (in which PEO 43 The molar ratio of tert-butyl acrylate to tert-buty...

Embodiment 2

[0067] (1) Macromolecular initiator PEO 43 -Synthesis of Br

[0068] Azeotropically distill 10g of flaky PEO and 250mL of toluene to remove excess water, lower the temperature of the system to room temperature, change to an ice-water bath, add 2mL of triethylamine, 1.9mL of 2-bromoisobutyryl bromide in 20mL of toluene (The molar ratio of polyoxyethylene, 2-bromoisobutyryl bromide and triethylamine is 1:3:2.8), react for 20h, filter, extract, collect the organic phase, dry, filter, precipitate, suction filter, vacuum dry , to get the white powdery macromolecular initiator PEO 43 -Br.

[0069] (2) ATRP synthetic polymer

[0070] 0.5g of macroinitiator PEO 43 -Br, 0.035g of catalyst cuprous bromide (CuBr), 0.040g of ligand PMDETA (the molar ratio of macroinitiator PEO-Br, ligand PMDETA, and catalyst is 1:1:1), 4.5 g tert-butyl acrylate (tBA) and 2mL methanol solvent were added to a 50mL round bottom flask (in which PEO 43 The molar ratio of tert-butyl acrylate to tert-butyl...

Embodiment 3

[0078] (1) Macromolecular initiator PEO 43 -Synthesis of Br

[0079] Azeotropically distill 10g of flaky PEO and 250mL of toluene to remove excess water, lower the temperature of the system to room temperature, change to an ice-water bath, add 2mL of triethylamine, 1.9mL of 2-bromoisobutyryl bromide in 20mL of toluene (The molar ratio of polyoxyethylene, 2-bromoisobutyryl bromide and triethylamine is 1:3:2.8), react for 30h, filter, extract, collect the organic phase, dry, filter, precipitate, suction filter, vacuum dry , to get the white powdery macromolecular initiator PEO 43 -Br.

[0080] (2) ATRP synthetic polymer

[0081] 0.5g of macroinitiator PEO 43 -Br, 0.035g of catalyst cuprous bromide (CuBr), 0.040g of ligand PMDETA (the molar ratio of macroinitiator PEO-Br, ligand PMDETA, and catalyst is 1:1:1), 5.3 g tert-butyl acrylate (tBA) and 2mL methanol solvent were added to a 50mL round bottom flask (in which PEO 43 The molar ratio of tert-butyl acrylate to tert-butyl...

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Abstract

The invention belongs to the field of macromolecule nano function materials and energy materials, relating to a polymer micelle modified by nano copper oxide and a preparation method of the polymer micelle. The polymer is an amphiphilic block polymer PEO43-b-P(tBAm-stat-AAn), wherein PEO is polyethylene oxide, PtBA is poly(t-butyl methacrylate), PAA is polyacrylic acid, m is ranged from 5 to 25, and n is ranged from 15 to 45; the micelle with the nano copper oxide deposited in the inner core is of a structure which is as follows: PEO is used as the shell of the micelle, P(tBAm-stat-AA) is used as the inner core of the micelle, and the nano copper oxide is wrapped by the AA section of the micelle inner core. The polymer and nano copper oxide composite micelle can improve the thermal conductivity of the solution; and meanwhile, the micelle has good biocompatibility and biodegradability, and wide application prospect.

Description

technical field [0001] The invention belongs to the field of polymer nano functional materials and energy materials, and relates to a polymer micelle modified by nano copper oxide and a preparation method thereof. Background technique [0002] In recent years, the preparation of polymer micelles by supramolecular self-assembly technology has attracted more and more attention from scientists from all over the world. The development speed is amazing and major breakthroughs have been made in many fields, such as drug gene carriers, biomineralization templates and microreactors. Wait. And some stimuli-responsive self-assembled micelles or vesicles have attracted more attention. The structure of micelles or vesicles will change accordingly with changes in external conditions such as pH, temperature, magnetic field and redox conditions. [0003] Amphiphilic block polymers generally consist of a hydrophilic block and a hydrophobic block, and they are often called polymeric surfact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J13/00
Inventor 杜建忠路航甘啟俊任骏驰范华林
Owner TONGJI UNIV
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