Method for synthesizing diamine terminated polystyrene based on ATRP active polymerization method and application of diamine terminated polystyrene
A polystyrene and diamine-capped technology, which is applied in the synthesis and application of diamine-capped polystyrene based on the ATRP living polymerization method, can solve the problems of high cost of use, complex synthesis conditions, and unfavorable large-scale application. Achieve the effect of low production cost, mature technical route and easy industrial production
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
preparation example Construction
[0031] The invention describes a method for synthesizing diamine-terminated polystyrene based on ATPR active polymerization for reducing oil / water interfacial tension. The steps are as follows:
[0032] Using N-bromomethylphthalimide as the ATRP initiator, using CuBr / 2,2'-bipyridine as the catalyst, and styrene as the monomer for atom transfer radical polymerization, by adjusting the ATRP initiator and The ratio between styrene, polymerized at 110°C for 0.5-3h, to obtain modified polystyrene with different molecular weights; then react the synthesized modified polystyrene with potassium phthalimide in anhydrous DMF 12h, obtain the polystyrene that two phthalimide group protects; Finally, reduce under the action of hydrazine hydrate, obtain the polystyrene that end-blocks with diamine group; Finally, dissolve the polystyrene with diamine group in toluene as In the oil phase, the functionalized nanoparticles are dissolved in water, and the pH value of the aqueous phase solution ...
Embodiment 1
[0046] Embodiment 1: the preparation of diamine-based polystyrene (1)
[0047] Mix 0.1mol potassium phthalate and 1mol dibromomethane in a certain proportion, add 40mL of anhydrous DMF as a solvent, and react at 60°C for 6h. After the reaction, pour the reaction solution into ice water to obtain a crude product; dissolve in Recrystallize three times in hot ethanol, put into vacuum oven and dry for 24h to obtain pure initiator N-bromomethylphthalimide; place the initiator and styrene monomer in a molar ratio of 1:15 In the reaction system, after three times of vacuuming and argon circulation, after closing the reaction system, under the action of a catalyst, react at 110°C for 0.5h, open the reaction system to allow oxygen to enter the quenching reaction, and add the mixed solution after the reaction to a certain amount Dilute it with chloroform, pass it through a neutral alumina chromatography column, collect the liquid and pour it into methanol to precipitate the polymer, aft...
Embodiment 2
[0049] Embodiment 2: the preparation of diamine-based polystyrene (2)
[0050] Mix 0.1mol potassium phthalate and 1mol dibromomethane in a certain proportion, add 40mL of anhydrous DMF as a solvent, and react at 60°C for 6h. After the reaction, pour the reaction solution into ice water to obtain a crude product; dissolve in Recrystallize three times in hot ethanol, put into vacuum oven and dry for 24h to obtain pure initiator N-bromomethylphthalimide; place the initiator and styrene monomer in a molar ratio of 1:15 In the reaction system, after three cycles of vacuuming and argon circulation, after closing the reaction system, under the action of a catalyst, react at 110°C for 1 hour, open the reaction system to allow oxygen to enter the quenching reaction, and add a certain amount of the reaction mixture Diluted with chloroform, passed through a neutral alumina chromatography column, collected the liquid and poured it into methanol to precipitate the polymer, after several ti...
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