Unlock instant, AI-driven research and patent intelligence for your innovation.
Perfluoralkylene-containing acrylate monomer and preparation method and application thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology for olefin-based acrylates and monomers, which is applied in the field of perfluoro-olefin-based acrylate monomers and their preparation and application, can solve problems such as danger, and achieve the effects of less by-products and simple synthesis methods
Active Publication Date: 2012-12-12
ZHEJIANG UNIV OF TECH
View PDF0 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, perfluorooctanesulfonic acid (PFOS) and its derivatives are subject to strict restrictions in the United States, the European Union and other developed countries due to their high persistence and accumulation in the environment and potential dangers.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0023] Add 15mL of 1,2-dichloroethane, 1.74g (10mmol) of toluene-2,4-diisocyanate, 0.19g (0.8mmol) of tetraethyltin, and 0.02g of hydroquinone into a 50mL four-necked flask as a polymerization inhibitor 1.30 g (10 mmol) of hydroxyethyl methacrylate was added dropwise. After the dropwise addition, TLC was used to detect the reaction progress, and the temperature was kept and stirred for 4 hours. 6.11 g (10 mmol) of N-methyl-N-hydroxyethyl-4-perfluorononenyloxybenzylamine was added dropwise. After the dropwise addition was completed, TLC was detected to track the reaction progress, and the reaction was carried out while maintaining the temperature and stirring for 5 hours. Reaction is completed, and solvent extraction is separated by silica gelcolumn chromatography (V 二氯甲烷 :V 乙酸乙酯 :V环己烷 =5:4:1), after removing the solvent, yellow viscous paste I was obtained 1 , (n=9, R is CH 3 ), yield 63.79%, purity 99.7%.
[0028] Carry out the reaction according to the method of Example 1, but N-methyl-N-hydroxyethyl-4-perfluorononenyloxybenzylamine is changed to N-methyl-N-hydroxyethyl-4-perfluorohexene Base oxybenzylamine 4.61g (10mmol), other reaction conditions are with embodiment 1, obtain pale yellow paste I 2 (n=6, R is CH 3 ), yield 61.8%, purity 99.5%.
[0031] Carry out reaction according to embodiment 1 method, but hydroxyethyl methacrylate is changed into hydroxyethyl acrylate 1.16g (10mmol), other reaction conditions are with embodiment 1, get yellow paste I 3 (n=9, R is H), yield 66.1%, purity 99.3%
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
The invention discloses a perfluoralkylene-containing acrylatemonomer and a preparation method and application thereof. The preparation method comprises the following steps: (1) taking toluene-2,4-diisocyanate shown in a formula (II) as a raw material to perform first-step addition reaction with 2-hydroxyethyl methacrylate shown in a formula (III) by taking organic tin as a catalyst in a polar aprotic solvent, and reacting until the II basically disappears to obtain reaction liquid A of an intermediate shown in a formula (IV); and (2) directly adding the reaction liquid A to N-methyl-N-ethoxyl-p-perfluoralkenyl oxyl benzylamine shown in a formula (V) to perform second-step addition reaction, obtaining reaction liquid B after the reaction is over, and performing solvent removal and columnchromatography on the reaction liquid B to obtain the perfluoralkylene-containing acrylatemonomer (I). The invention provides the perfluoralkylene-containing acrylatemonomer (I) which is provided with a brand-new structure and can be used for preparing a surfactant; and the synthesis method for the substance is simple, and has less byproducts.
Description
(1) Technical field [0001] The invention relates to a novel polymer perfluoroalkene-based acrylate monomer and its preparation method and application. (2) Background technology [0002] Polymer surfactants usually refer to substances with a relative molecular mass of more than several thousand and significant surface activity. They have a long history of application, and some natural polymers have been used as polymer surfactants [Leather Science and Engineering, 2004, 14(6):24-30]. Compared with low-molecular-weight surfactants, polymer surfactants have the advantages of poor permeability, good film-forming properties, low or no toxicity, environmental friendliness, good dispersion, emulsification, and stability [Chemical Progress, 2005, 17(1 ): 151-156]. The introduction of fluorine atoms into polymer surfactants produces polymer fluorine-containing surfactants. Polymerfluorine-containing surfactants not only have the excellent performance of polymer surfactants, but al...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More 
