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

A class of supramolecular polymers based on high-density hydrogen bonding and their applications

A technology of supramolecular polymers and compounds, applied in the field of materials, can solve the unique properties of supramolecular polymers (cyclability, environmental responsiveness, adaptive and self-repairing loss, non-covalent weak interaction materials local Or overall crystallization and other problems, to achieve the effects of easy removal and recovery, avoiding crystallization, and high mechanical strength

Active Publication Date: 2021-06-22
NANJING UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the number of non-covalent weak interactions increases, it is easy to lead to partial or overall crystallization of the material, and the unique properties of the original supramolecular polymers (cyclability, environmental responsiveness, adaptability and self-healing) are lost.

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
  • A class of supramolecular polymers based on high-density hydrogen bonding and their applications
  • A class of supramolecular polymers based on high-density hydrogen bonding and their applications
  • A class of supramolecular polymers based on high-density hydrogen bonding and their applications

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Synthesis of supramolecular polymer molecular monomer ①, the structure is shown in the formula:

[0054]

[0055] Specific steps:

[0056] Under ice cooling, add 100g of dichloromethane to the dry round bottom flask, start stirring, add 10g of 1,2-bis(2-aminoethoxy)ethane into the dichloromethane, then add 40g of acrylic acid Slowly added dropwise to the mixed reaction system. After the dropwise addition, the flask was transferred to an oil bath, the temperature was raised to 55° C., the condensed water was turned on, and the reflux reaction was continued for 15 hours under a nitrogen atmosphere. After the reaction was completed and the reaction liquid was cooled to room temperature, most of the solvent and unreacted raw materials were removed by vacuum distillation, and finally all residual impurities were removed in a vacuum drying oven to obtain a yellow rigid solid at room temperature.

[0057] The novel molecule ① obtained in this embodiment was characterized ...

Embodiment 2

[0063] Synthesis of supramolecular polymer monomer ②, the structure is shown in the formula:

[0064]

[0065] Specific steps:

[0066] Under cooling in an ice bath, add 100 g of dichloromethane to a dry round bottom flask, start stirring, and dissolve 10 g of 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisilazol Oxygen was added into dichloromethane, and then 25 g of acrylic acid was slowly added dropwise into the mixed reaction system. After the dropwise addition, the flask was transferred to an oil bath, the temperature was raised to 55° C., the condensed water was turned on, and the reflux reaction was continued for 15 hours under a nitrogen atmosphere. After the reaction is completed, the reaction solution is cooled to room temperature, and most of the solvent and unreacted raw materials are removed by vacuum distillation, and finally all residual impurities are removed in a vacuum drying oven to obtain a yellow hard solid at room temperature.

Embodiment 3

[0068] Synthesis of the supramolecular polymer molecular monomer ③, the structure is shown in the formula:

[0069]

[0070] Specific steps:

[0071] Under ice cooling, add 100g of dichloromethane to the dry round bottom flask, start stirring, add 10g of 1,8-octanediamine into the dichloromethane, then slowly add 40g of acrylic acid into the mixed reaction system . After the dropwise addition, the flask was transferred to an oil bath, the temperature was raised to 55° C., the condensed water was turned on, and the reflux reaction was continued for 15 hours under a nitrogen atmosphere. After the reaction is completed, the reaction solution is cooled to room temperature, and most of the solvent and unreacted raw materials are removed by vacuum distillation, and finally all residual impurities are removed in a vacuum drying oven to obtain a yellow hard solid at room temperature.

[0072] The supramolecular polymer in the present embodiment is made diameter 8mm, the circular ...

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 class of compounds containing tetracarboxyethyldiamine structure, which has the following general structure: Among them, the number of atoms in the main chain is 8-12, which is composed of one or more of C, Si, O Molecular chains connected by valences. The compound molecule of the present invention forms a supramolecular polymer through a large number of hydrogen bonds, exhibits high mechanical strength at room temperature, and has excellent environmental responsiveness, temperature sensitivity and self-healing property, and can be recycled and reprocessed use.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a class of supramolecular polymers based on high-density hydrogen bond interaction and applications thereof. Background technique [0002] Supramolecular polymers are self-assembled through non-covalent weak interactions between monomer molecules. Due to the dynamic and reversible characteristics of non-covalent weak interactions, supramolecular polymers are endowed with many special properties different from traditional polymers, including recyclability, environmental responsiveness, adaptability and self-healing, etc. Precise and reversible control of the mechanical strength of polymer materials can be achieved. These unique and excellent properties make supramolecular polymers have broad application prospects in the fields of smart materials, environmentally friendly materials, and biomedical materials. According to different non-covalent interactions, the driv...

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): C07F7/08C07C229/16C08G77/38C08G83/00
CPCC07B2200/13C07C229/16C07F7/0838C08G77/38C08G83/008
Inventor 李承辉张敏浩
Owner NANJING UNIV