Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Photocurable monomer containing active amine structure and preparation method thereof

A technology of active amine and photopolymerizable monomer, applied in the field of photocurable monomer containing active amine structure and its preparation, can solve the problems of oxygen inhibition, influence on coating surface performance, sample contamination, etc., to avoid migration, prevent Adverse effects, effects of good surface curing properties

Pending Publication Date: 2019-05-21
安庆北化大科技园有限公司
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the existing photocuring system, the initiator is easy to migrate from the cured coating, causing contamination of the sample in contact with the coating, and the problem of oxygen inhibition is prone to occur during the photocuring process, which affects the surface properties of the coating after photocuring

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
  • Photocurable monomer containing active amine structure and preparation method thereof
  • Photocurable monomer containing active amine structure and preparation method thereof
  • Photocurable monomer containing active amine structure and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The reaction equation of the photopolymerizable monomer preparation process containing active amine is as follows:

[0034]

Embodiment 2

[0036] A preparation method of a photopolymerizable monomer containing an active amine structure, comprising the following steps:

[0037] (1) Weigh 64g of glycidyl methacrylate, add 3.0g of tetramethylammonium chloride and 0.1g of hydroxyanisole, and stir in a three-necked flask, heat up to 90°C, and use a constant-pressure dropping funnel to add to the reaction system Add 37.8g of acrylic acid dropwise to the mixture, after the dropwise addition, continue to react for 4h and then test the acid value, when the acid value is less than 10mg KOH / g, stop the reaction;

[0038] (2) After cooling, add 55 g of diethanolamine dropwise to the reaction system in an ice bath. After the dropwise addition, raise the temperature to 60° C. and continue the reaction for 2 hours;

[0039] (3) After the reaction finishes, cool down to room temperature, wash the product 2-3 times with deionized water, then wash 2-3 times with 1wt% NaOH aqueous solution, and finally wash with deionized water to ...

Embodiment 3

[0043] (1) Weigh 64g of glycidyl methacrylate, add 1.2g of tetrabutylammonium bromide, 0.5g of hydroxyanisole, and stir in a three-necked flask to raise the temperature to 110°C. Add 43.2g of acrylic acid dropwise in the solution, after the dropwise addition, continue to react for 4h and then test the acid value, when the acid value is less than 10mgKOH / g, stop the reaction;

[0044] (2) Add 63 g of diethanolamine dropwise to the reaction system under ice bath conditions, after the dropwise addition, raise the temperature to 80° C., and continue the reaction for 2 hours;

[0045] (3) After the reaction finishes, cool down to room temperature, wash the product 2-3 times with deionized water, then wash 2-3 times with 1wt% NaOH aqueous solution, and finally wash with deionized water to neutrality, transfer it to a beaker, Add an appropriate amount of anhydrous sodium sulfate, dry for 24 hours, and filter to obtain an acrylate photocurable monomer containing an active amine.

[0...

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

No PUM Login to View More

Abstract

The invention discloses a photopolymerization monomer containing an active amine structure, and relates to the field of polymer material synthesis. The photopolymerization monomer is proposed based onthe problem that an initiator in an existing photocuring system is easy to migrate from a cured coating, and the photopolymerization monomer has the following chemical structural formula: (as described in the specification). The invention also discloses a preparation method of the photopolymerization monomer, which comprises the following steps: (1) reaction of glycidyl methacrylate and acrylic acid in the presence of a catalyst and a polymerization inhibitor; (2) dripping of secondary amine; and (3) purification of reaction products. The preparation method provided by the invention has the following beneficial effects: the reaction process is simple, the process conditions are easy to control, and an amine structure is introduced into a polymerization system, so that certain oxygen resistance and polymerization inhibition performance can be obtained, thereby obtaining better surface curing performance, avoiding migration of small molecular compounds, and preventing adverse effects onthe photocuring system.

Description

technical field [0001] The invention relates to the field of polymer material synthesis, in particular to a photocurable monomer containing an active amine structure and a preparation method thereof. Background technique [0002] Volatile organic compounds (VOCs) emitted into the atmosphere will form ozone, photochemical smog, etc. through complex chemical and photochemical reactions with NOx and other gases. In recent years, my country's VOC emissions have been increasing, which seriously endangers human health and ecological environment safety. In order to promote energy saving and environmental protection, low VOC coatings are developed. Photocurable coatings are a coating system that uses photocurable reactive diluents as solvents, and uses polymerizable monomers to participate in the curing reaction to avoid VOC emissions. [0003] The photopolymerization system is mainly composed of the following three components: (1) Oligomer (prepolymer): a photosensitive resin con...

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
no application Login to View More
IPC IPC(8): C07C229/12C07C229/14C07D295/15C07C227/08C09D4/02
Inventor 聂俊李三保朱晓群
Owner 安庆北化大科技园有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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