Method for preparing flame-retardant polymer containing pyridine groups
A technology of flame retardant polymer and pyridine group, which is applied in the field of preparation of flame retardant polymer containing pyridine group, can solve the problems of weak surface adhesion, difficult to mix, limited application scope, etc., and achieves strong surface adhesion and resistance. The effect of good combustion performance and thermodynamic stability, and a wide range of applications
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0021] Example 1
[0022] (1) Add 10.6g of styrene, 5.3g of acrylonitrile, 10.6g of 2-vinylpyridine, 10.6g of dibromostyrene, 1.9g of sodium lauryl sulfate and 111.3g of water into a 500ml four-necked flask. Stir for 30 minutes at a temperature of 70°C to prepare an emulsion;
[0023] (2) Add 0.8g potassium persulfate and 0.8g tert-dodecanethiol to the above emulsion, raise the temperature to 80-85°C, and react for 5 hours to prepare a reaction mixture;
[0024] (3) Add 0.8 g of sodium chloride to the above reaction mixture and stir for 10 minutes, and then perform suction filtration, and the solid product obtained after suction filtration is a crude product;
[0025] (4) Wash the above-mentioned crude product with water and then with methanol. After washing, put it in a vacuum drying oven and dry it for 2 hours at a pressure of -0.095mpa and a temperature of 30℃-40℃ to obtain 35.8g of white particles. This product is a flame-retardant polymer containing pyridine groups.
Example Embodiment
[0026] Example 2
[0027] (1) Add 10.6g of styrene, 5.3g of acrylonitrile, 10.6g of 2-vinylpyridine, 13.1g of dibromostyrene, 3.1g of sodium lauryl sulfate and 160g of water into a 500ml four-necked flask. Stir for 30 minutes at a temperature of 70°C to prepare an emulsion;
[0028] (2) Add 1.1 g of potassium persulfate and 1.9 g of tert-dodecanethiol to the above emulsion, raise the temperature to 80-85°C, and react for 5.5 hours to obtain a reaction mixture;
[0029] (3) Add 1.5 g of sodium chloride to the above reaction mixture and stir for 10 minutes, and then perform suction filtration, and the solid product obtained after suction filtration is a crude product;
[0030] (4) Wash the above-mentioned crude product with water and then with methanol. After washing, put it in a vacuum drying oven and dry it for 2 hours at a pressure of -0.095mpa and a temperature of 30℃-40℃ to obtain 38.6g of light yellow Granular product, which is a flame retardant polymer containing pyridine groups...
Example Embodiment
[0031] Example 3
[0032] (1) Add 10.6g styrene, 5.3g acrylonitrile, 10.6g 2-vinylpyridine, 13.1g dibromostyrene, 3.1g sodium dodecylbenzene sulfonate, 160g water and 20g methanol into a 500ml four-necked flask In the temperature condition of 65-70℃, stir for 30 minutes to prepare an emulsion;
[0033] (2) Add 1.1 g of potassium persulfate and 1.9 g of tert-dodecanethiol to the above emulsion, raise the temperature to 80-85°C, and react for 5.5 hours to prepare a reaction mixture;
[0034] (3) Add 1.2 g of sodium chloride to the above reaction mixture and stir for 10 minutes, and then perform suction filtration, and the solid product obtained after suction filtration is a crude product;
[0035] (4) Wash the above-mentioned crude product with water and then with methanol. After washing, put it in a vacuum drying oven and dry it for 2 hours at a pressure of -0.095mpa and a temperature of 30℃-40℃ to obtain 38.9g of light yellow. Granular product, which is a flame retardant polymer cont...
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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap