Supermolecule bisazobenzene compound and preparation method thereof

A bisazobenzene and composite technology, applied in the field of supramolecular bisazobenzene composites and their preparation, can solve problems such as poor solubility and film-forming properties, and achieve good stability, good solubility and film-forming properties The effect of sex, wide application prospect

Inactive Publication Date: 2015-12-23
ANHUI UNIVERSITY
View PDF1 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the existence of large conjugated groups in the system, the traditional bis-azobenzene polymer system has poor solubility and film-forming properties.

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
  • Supermolecule bisazobenzene compound and preparation method thereof
  • Supermolecule bisazobenzene compound and preparation method thereof
  • Supermolecule bisazobenzene compound and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Synthesis of Small Molecules of Bisazobenzene

[0027] 1.1 Synthesis of 4-amino-4'-nitroazobenzene

[0028] In this step, the amino group of aniline is firstly protected, then 4-nitroaniline is diazotized, then the two are coupled, and finally the amino group is deprotected by hydrolysis. Concrete synthetic steps are as follows:

[0029] 1. Weigh 126g of NaHSO with a mass concentration of 20.5% 3 Solution and 17g of formaldehyde solution with a mass concentration of 37-40% were added to a 250ml single-necked bottle, and the temperature was raised to 50°C and stirred for 30 minutes; then the temperature was raised to 60°C, and 14g of aniline was added dropwise with a dropper to stop the reaction, and cooled naturally. spare;

[0030] 2. Put the beaker containing 100g of anhydrous sodium acetate and 4L of distilled water into an ice bath, add the aniline solution obtained in step 1, and stir mechanically;

[0031] 3. Weigh 25g of 4-nitroaniline into a 200ml beaker, ad...

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 discloses a supermolecule bisazobenzene compound and a preparation method thereof. The supermolecular bisazobenzene compound is characterized in that 4-hydroxyl-4'-(4-nitrophenylazo)azobenzene is taken as the hydrogen bond donor, polytetravinyl pyridine is taken as the hydrogen bond acceptor, and the supermolecular bisazobenzene compound is obtained through the hydrogen bond self-assembly between 4-hydroxyl-4'-(4-nitrophenylazo)azobenzene and polytetravinyl pyridine according to a mole ratio of 1-4:4. When the mole ratio of bisazobenzene chromophore to pyridine group reaches 1.0, the obtained supermolecule compound still has good solubility, moreover, pyridine rings are all bonded with hydrogen bonds to form the supermolecule compound at this time, and thus the two-photon optical storage pattern is most clear.

Description

1. Technical field [0001] The invention relates to a supramolecular bisazobenzene complex and a preparation method thereof, which can be used as a two-photon optical storage medium and belongs to the technical field of supramolecular complexes. 2. Background technology [0002] Two-photon optical storage means that under two-photon excitation, the azobenzene chromophore absorbs photons and undergoes repeated trans-cis-trans isomerization until it is aligned perpendicular to the polarization direction of the incident light, resulting in a large number of azobenzene vertical Orientation in the polarization direction of incident light produces birefringence (Birefringence), that is, optical anisotropy (Optical anisotropy). Compared with the usual one-photon absorption (One-photon absorption, 1PA), two-photon absorption has two outstanding features: (1) two-photon absorption is the process of long-wave absorption and short-wave emission, and excitation light (usually infrared or...

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): C08L39/08C08K5/32G11B7/2467
Inventor 胡大乔张其锦
Owner ANHUI UNIVERSITY
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