Supercharge Your Innovation With Domain-Expert AI Agents!

A kind of preparation method of poly(carbonate-ether) polyol

A polyol, carbonate technology, applied in the field of polyol preparation, can solve problems such as inapplicability

Active Publication Date: 2017-06-06
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, poly(carbonate-ether) polyols degrade rapidly in the presence of KOH, so this method is not suitable for capping poly(carbonate-ether) polyols

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
  • A kind of preparation method of poly(carbonate-ether) polyol
  • A kind of preparation method of poly(carbonate-ether) polyol
  • A kind of preparation method of poly(carbonate-ether) polyol

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] The embodiment of the present invention discloses a kind of preparation method of poly(carbonate-ether) polyol, comprising the following steps:

[0025] Based on Zn doped with rare earth 3 [Co(CN) 6 ] 2 Under the effect of the catalyzer of double metal cyanide and chain transfer agent, propylene oxide and carbon dioxide are carried out copolymerization reaction, obtain the first poly (carbonate-ether) polyol;

[0026] The first poly(carbonate-ether) polyol, ethylene oxide and propylene oxide are mixed and capped to obtain poly(carbonate-ether) polyol.

[0027] In this application, propylene oxide and carbon dioxide are based on Zn doped with rare earth 3 [Co(CN) 6 ] 2 Under the action of a double metal cyanide (DMC) catalyst and a chain transfer agent, a copolymerization reaction occurs to obtain a poly(carbonate-ether) polyol, and then propylene oxide and ethylene oxide are added thereto to carry out polyaddition capping, A poly(carbonate-ether) polyol is obtaine...

Embodiment 1

[0051] Evacuate the weighing bottle at 80°C and fill it with CO 2 Gas treatment 2h (inflated 6 times), and cooled to room temperature; 2 Add 10.0mg of DMC catalyst and 1.15g of sebacic acid chain transfer agent to the weighing bottle under the protection of gas to obtain a mixture; put the 500ml reaction kettle at 80°C and fill it with CO 2 Treat for 2h (inflate 6 times), and cool to room temperature, add the mixture in the reaction kettle, then add 10ml propylene oxide to the kettle through the connection of the catalyst weighing bottle, stir at a speed of 500rpm, and pass through the pressure of carbon dioxide The regulator feeds carbon dioxide into the kettle, puts the reaction kettle into a constant temperature bath to carry out polymerization reaction, the pressure of carbon dioxide in the polymerization reaction is 4.0Mpa, the temperature of the polymerization reaction is 80°C, and the time of the polymerization reaction is 2h.

[0052] After the polymerization reaction...

Embodiment 2

[0055] Evacuate the weighing bottle at 80°C and fill it with CO 2 Gas treatment 2h (inflated 6 times), and cooled to room temperature; 2 Add 5.0 mg of DMC catalyst and 1.0 g of PPG-300 chain transfer agent to the weighing bottle under the protection of air to obtain a mixture; put the 500 ml reaction kettle at 80 ° C and fill it with CO 2 Treat for 2h (inflate 6 times), and cool to room temperature, add the mixture in the reaction kettle, then add 10ml propylene oxide to the kettle through the connection of the catalyst weighing bottle, stir at a speed of 500rpm, and pass through the pressure of carbon dioxide The regulator feeds carbon dioxide into the kettle, puts the reaction kettle into a constant temperature bath to carry out polymerization reaction, the carbon dioxide pressure of the polymerization reaction is 2.0Mpa, the temperature of the polymerization reaction is 60°C, and the polymerization reaction time is 4h.

[0056] After the polymerization reaction was complet...

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

PropertyMeasurementUnit
molecular weight distributionaaaaaaaaaa
molecular weight distributionaaaaaaaaaa
molecular weight distributionaaaaaaaaaa
Login to View More

Abstract

The invention provides a kind of preparation method of poly(carbonate-ether) polyol, comprising the following steps: in the catalyst and chain transfer agent based on Zn3[Co(CN)6]2 double metal cyanides doped with rare earth Under the effect of, propylene oxide and carbon dioxide are carried out copolymerization reaction, obtain the first poly(carbonate-ether) polyol; The first poly(carbonate-ether) polyol, ethylene oxide and propylene oxide After mixing, capping is carried out to obtain poly(carbonate-ether) polyols. In the process of preparing poly(carbonate-ether) polyols, the present application adopts ethylene oxide and propylene oxide as end-capping agents, so that the content of primary hydroxyl groups in poly(carbonate-ether) polyols can be higher. Experimental results show that the poly(carbonate-ether) polyol prepared by the present invention has a primary hydroxyl content of 50-90 mol%.

Description

technical field [0001] The invention relates to the technical field of polymer polyols, in particular to a preparation method of poly(carbonate-ether) polyols. Background technique [0002] Poly(carbonate-ether) polyol refers to a class of polymers containing repeated carbonate units and ether units in the main molecular chain, and the ends of the molecular chain are hydroxyl groups. Poly(carbonate-ether) polyol is similar to polyester polyol and polyether polyol. It is one of the main raw materials of polyurethane industry and is widely used in the manufacture of automotive interior parts, train and ship trim parts, medical equipment, home appliances, and furniture. , fabric linings, coatings, shoes, leather and paste and other fields. Compared with polyurethanes synthesized from polyester polyols and polyether polyols, poly(carbonate-ether) polyurethanes prepared from poly(carbonate-ether) polyols have better heat resistance, water resistance, antibacterial properties, O...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C08G64/34C08G64/42C08G65/26
CPCC08G64/34C08G64/42C08G65/2603
Inventor 付双滨秦玉升王献红周庆海乔立军王佛松
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com