Preparation method of functionalized polypropylene copolymer

A polypropylene copolymer, functionalized technology, applied in the field of preparation of functionalized polypropylene copolymer, to achieve the effects of enhancing printing and dyeing properties, expanding application fields, and improving compatibility

Inactive Publication Date: 2020-11-24
TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
0 Cites 0 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0004] But so far, there are few reports on the precise control of the grafting density and grafting quantity of f...
View more

Abstract

The invention discloses a preparation method of functionalized polypropylene copolymer. In the method, an imidazole-based cobalt catalyst is adopted, and the copolymer is obtained by the copolymerization of propylene and polar monomers which are catalyzed by the catalyst in the presence of propylene. The density and quantity of the polar functional groups of the polypropylene copolymer can be adjusted. The copolymer maintains the good characteristics of polypropylene such as the original high melting point and high crystallinity.

Application Domain

Cobalt organic compounds

Technology Topic

PolypropylenePolymer chemistry +6

Image

  • Preparation method of functionalized polypropylene copolymer
  • Preparation method of functionalized polypropylene copolymer
  • Preparation method of functionalized polypropylene copolymer

Examples

  • Experimental program(4)

Example Embodiment

[0016] Example 1
[0017] Add imidazole (0.25 mol) in absolute ethanol (40 mL) to o-dichlorobenzene (0.1 mol) in methanol (20 mL). A few drops of 5% sodium hydroxide in ethanol were added to the reaction mixture. Reflux for 8 hours at 80°C and then allow it to stay overnight. The sodium chloride was filtered, the filtrate was evaporated and ethanol recrystallized, and the yield of 1,2-diimidazole benzene was 89%.

Example Embodiment

[0018] Example 2
[0019] Take a 100ml reaction kettle, add 50ml tetrahydrofuran, add 190mg 1,2-diimidazobenzene, add 305mg NiBr2 (DME), stir for 12 hours, and spin off the solvent to obtain a pale yellow powder as 1,2-diimidazobenzene cobalt bromide. The yield was 97%.

Example Embodiment

[0020] Example 3
[0021] A dry 250ml autoclave with a magnetic stir bar was replaced with nitrogen for three times and propylene for two. Heat the oil bath to 50℃, add 100ml of toluene, 1ml of 7-octene-1 alcohol, 4ml of MAO, start stirring, use a syringe to add 1.2mmol 1,2-diimidazobenzene cobalt bromide catalyst, use a solenoid valve to control the propylene pressure of the system Keep 1.03×10 6 Pa, start propylene copolymerization. After 30 minutes, the propylene valve was closed, treated with acid alcohol, and filtered to obtain 9.8 g of copolymer.

PUM

no PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.

Similar technology patents

Fire retardant coating composition

InactiveCN103483996Aincrease polaritystrong adhesion
Owner:QINGDAO SANLI XINYUAN ELECTRICAL APPLIANCES

Polyalphaolefin compound with polar ester group branched chain and preparation method thereof

ActiveCN110330430Aincrease polarityImprove anti-wear performance
Owner:SHENZHEN EUBO NEW MATERIAL TECH

Styrene and functional styrene high syndiotactic copolymer and preparation method thereof

ActiveCN105330779Aincrease polarityIncrease blending performance
Owner:CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI

Soluble polyaryletherketone terpolymer and synthesis method thereof

ActiveCN110790919AGood solubilityincrease polarity
Owner:宁夏清研高分子新材料有限公司

Soft, tender and smooth block silicone oil for cotton and preparation method thereof

PendingCN114687216AHigh retention rateincrease polarity
Owner:浙江科峰新材料有限公司

Classification and recommendation of technical efficacy words

  • Improve compatibility
  • increase polarity

Intelligent charging method and apparatus

InactiveCN101340011AImprove compatibilityReduce safety incidents
Owner:ZTE CORP

Method for preparing organosilicon modified acrylic resin

Owner:中山大桥化工集团有限公司

Method and device capable of editing a picture on line

ActiveCN103150745AImprove compatibilityIncreased speed and processing efficiency
Owner:TENCENT TECH (SHENZHEN) CO LTD

Method for improving degree of exhaustion during wood dyeing

InactiveCN105643745Aincrease polarityImprove solubility
Owner:CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY

Styrene and functional styrene high syndiotactic copolymer and preparation method thereof

ActiveCN105330779Aincrease polarityIncrease blending performance
Owner:CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI

Fire retardant coating composition

InactiveCN103483996Aincrease polaritystrong adhesion
Owner:QINGDAO SANLI XINYUAN ELECTRICAL APPLIANCES

Polyalphaolefin compound with polar ester group branched chain and preparation method thereof

ActiveCN110330430Aincrease polarityImprove anti-wear performance
Owner:SHENZHEN EUBO NEW MATERIAL TECH

Soft, tender and smooth block silicone oil for cotton and preparation method thereof

PendingCN114687216AHigh retention rateincrease polarity
Owner:浙江科峰新材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products