Metal ion mediated chiral polyamide material and preparation method thereof
A technology of metal ions and metal ion sources, applied in the field of preparation of chiral polyamide materials, can solve the problems of chiral structure regulation and application limitation
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0033] The invention provides a method for preparing a chiral polyamide material mediated by metal ions, comprising the following steps:
[0034] S1. Dissolve the chiral small molecule self-assembly and the metal ion source in an organic solvent according to a preset molar ratio to obtain a mixed solution; then add the first monomer and the second monomer to the mixed solution, and stir thoroughly forming a metal-mediated assembly reaction system; the monomer is a polyamine, and the second monomer is a polyacid or an anhydride;
[0035] S2. Polymerize in the metal-mediated assembly reaction system formed in step S1, and remove impurities from the product obtained in the polymerization reaction, and obtain the extracted product after removing the chiral small molecule self-assembly by extraction ;
[0036] S3. Vacuum drying the extracted product obtained in step S2 to obtain metal ion-mediated chiral polyamide or polyimide.
[0037] When the second monomer is a polybasic acid...
Embodiment 1
[0046] This embodiment provides a Mn 2+ A mediated chiral polyamide and a preparation method thereof, comprising the steps of:
[0047] S1. Dissolve the chiral small molecule compound L-16AlaPy5Br (0.06mmol) and manganese acetate tetrahydrate (0.06mmol) in 12mL of methanol to obtain a mixed solution; then add 5g of laurolactam and 0.05g of m- Phenylenediamine and 0.02g of NaH were raised to 164°C in a vacuum state; after that, the temperature was raised to 225°C, argon gas was introduced, 5mL of carbon dioxide was injected, and the reaction was carried out for 1h; finally, terephthalic acid was added into the flask, and after After 30 minutes, the reaction was terminated.
[0048] S2. Filter the reaction product obtained in step S1 to remove impurities, and then use ethanol Soxhlet extraction for 24 hours to remove the chiral amphiphilic small molecule compound to obtain an extraction product.
[0049] S3. After the extraction product obtained in step S2 is vacuum-dried at 3...
Embodiment 2~3
[0056] This embodiment provides a Mn 2+ Mediated chiral polyamide and preparation method thereof, compared with Example 1, the difference is that the content of manganese acetate tetrahydrate added in step S1 is different, and the addition of manganese acetate tetrahydrate in Example 2 and Example 3 The amounts are 0.06mmol and 1.2mmol, respectively, and the rest of the steps are consistent with Example 1, and will not be repeated here.
[0057] The Mn that embodiment 2~3 prepares 2+ The schematic diagrams of the chiral polyamide mediated by image 3 , Figure 4 shown. Depend on image 3 , Figure 4 It can be seen that the basic constituent units of the chiral polyamide materials prepared in Examples 2-3 are all right-handed helical structures, indicating that the addition of metal ions can mediate and regulate the chiral direction of the chiral polyamide materials. At the same time, compared with Example 1, the radius and pitch of the basic constituent units of the chir...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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