Double-anchored block copolymer as well as preparation method and application thereof
A block copolymer and double anchoring technology, which is applied in the direction of pigment paste, etc., can solve the problems of not being easy to industrialized production, not having double anchoring property, limited application range, etc., achieving good anchoring effect, preventing falling off, and easy operation Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0038] Add anisole (30mL), 2-bromoisobutyric acid, styrene, acrylonitrile, copper bromide and tris(2-pyridylmethyl)amine into the Schlenk bottle, stir well; After liquid nitrogen freezing and vacuum deoxygenation treatment, add cuprous bromide and react at 60°C. Among them, 2-bromoisobutyric acid, styrene, acrylonitrile, copper bromide, cuprous bromide and three The molar ratio of (2-pyridylmethyl)amine is 1:500:300:0.5:2.5:9, and styrene and acrylonitrile are grafted under the action of 2-bromoisobutyric acid as an initiator. to achieve the desired polymer molecular weight (1.02×10 4 ), the dimethylaminoethyl methacrylate monomer (6 mL) that had been deaerated from the air was added to the Schlenk bottle with a syringe. When the desired polymer molecular weight (2.0×10 5 ), the reaction was terminated, purified by centrifugation, and the product was dried in an oven at 40°C for 10 hours to obtain a block copolymer, which was designated as PSAN-b-PDMAEMA.
Embodiment 2
[0052] Add N,N-dimethylformamide (30 mL), α-chloroisobutyric acid, styrene, acrylonitrile, copper chloride, and 4,4'-dinonyl-2,2'-bipyridine to the Schlenk bottle In the middle, fully stir; then pass nitrogen, discharge the air, after liquid nitrogen freezing, vacuum deoxygenation treatment, add cuprous chloride, react at 60 ° C, wherein, α-chloroisobutyric acid, styrene, acrylonitrile , cupric chloride, cuprous chloride and 4,4'-dinonyl-2,2'-bipyridine in a molar ratio of 1:500:300:1.0:10:20, styrene and acrylonitrile in α- Under the action of chloroisobutyric acid as the initiator, grafting reaction occurs, when the required polymer molecular weight (1.1×10 3 ), the dimethylaminoethyl methacrylate monomer (6 mL) that had been deaerated from the air was added to the Schlenk bottle with a syringe. When the desired polymer molecular weight (2.1×10 5 ), the reaction was terminated, purified by centrifugation, and the product was dried in an oven at 40° C. for 10 h to obtain a ...
Embodiment 3
[0054] Add dimethyl sulfoxide (30mL), α-bromoisovaleric acid, styrene, acrylonitrile, copper bromide and 2,2'-bipyridyl into the Schlenk bottle, stir well; After liquid nitrogen freezing and vacuum deoxygenation treatment, add cuprous bromide and react at 60°C, in which α-bromoisovaleric acid, styrene, acrylonitrile, copper bromide, cuprous bromide and 2,2 The molar ratio of '-bipyridine is 1:500:300:0.1:0.9:2, styrene and acrylonitrile undergo grafting reaction under the action of α-bromoisovaleric acid as the initiator, when the desired Polymer molecular weight (7.65×10 3 ), the dimethylaminoethyl methacrylate monomer (6 mL) that had been deaerated from the air was added to the Schlenk bottle with a syringe. When the desired polymer molecular weight (1.57×10 4 ), the reaction was terminated, purified by centrifugation, and the product was dried in an oven at 40° C. for 10 h to obtain a block copolymer.
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More