Pentamine guanidine phosphate oligomer, preparation method thereof and antibacterial polymer prepared from pentamine guanidine phosphate oligomer
A technology of guanidinium pentamethylenediamine phosphate and oligomers, which is applied in the manufacture of rayon, single-component polyamide rayon, textiles and papermaking, etc., and can solve problems such as limited applications
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0029] In one embodiment, the preparation method of guanidinium pentamethylenediamine phosphate oligomer comprises: reacting pentamethylenediamine and guanidine phosphate at 90-140°C for 2-5 hours, then raising the temperature to 170-190°C for 2-15 hours. hours to obtain the first oligomer; then add an organic compound to the first oligomer and continue to react for 1 to 5 hours (for amidation or ring-opening reaction) to obtain pentamethylenediamine phosphate guanidinium oligomer.
[0030] In the preparation of the guanidinium pentamethylenediamine phosphate oligomer according to one embodiment of the present invention, the addition amount of the organic compound is 0.5 to 25 wt % (relative to the mass of the first oligomer), preferably 1 to 15 wt %, for example 1.5 wt % wt%, 2wt%, 3wt%, 5wt%, 6wt%, 6.56wt%, 7.5wt%, 8wt%, 8.09wt%, 10wt%, 12wt%, 15wt%, 20wt%, etc.
[0031] In one embodiment, the molar ratio of pentamethylenediamine to guanidine phosphate is 1:(1˜1.2), such as ...
Embodiment 1
[0054] Preparation of guanidinium pentamethylenediamine phosphate oligomer A1
[0055] Get 102g of pentamethylenediamine and 238g of guanidine phosphate (pentamethylenediamine: guanidine phosphate (mol / mol)=1:1.1) into a 500ml three-necked flask, stir and heat up to 130°C under nitrogen protection, react for 2.5h, and then heat up After 8 hours of reaction at 170°C, 305 g of the first oligomer was obtained. Then, in the first oligomer, add 20g (6.56wt%) pyromellitic anhydride again, keep temperature constant, continue reaction 1h, obtain the pentamethylenediamine phosphate guanidinium oligomer containing terminal anhydride group (several Average molecular weight 2650Da), marked as A1.
[0056] Preparation of antibacterial polyamide B1
[0057] Take 18g of guanidinium pentamethylenediamine phosphate oligomer A1, mix it with 700g of polyamide 66, put it into a twin-screw extruder, melt and blend at 260°C, and the reaction time of the materials in the screw is 3 minutes. Throu...
Embodiment 2
[0059] Preparation of Pentamethylenediamine Phosphate Guanidinium Oligomer A2
[0060] Take 102g of pentamethylenediamine and 255g of guanidine phosphate (pentamethylenediamine: guanidine phosphate (mol / mol)=1:1.05) and add them to a 500ml three-neck flask, stir and heat up to 130°C under nitrogen protection, react for 2.5h, and then heat up After 15 hours of reaction at 180°C, 320 g of the first oligomer was obtained. Then, in the first oligomer, add 4.8g (1.50wt%) ethylene glycol diglycidyl ether and continue to react for 2h, obtain the pentamethylenediamine phosphate guanidinium oligomer (number-average molecular weight 11000Da ), marked as A2.
[0061] Preparation of antibacterial polyamide B2
[0062] Take 10g of guanidinium pentamethylenediamine phosphate oligomer A2, mix it with 1990g of polyamide 56, put it into a twin-screw extruder, melt and blend at 245°C, and the reaction time of the materials in the screw is 5 minutes. Through the reaction between the terminal ...
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