Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of octaeugenol epoxy-based liquid cage silsesquioxane and its preparation method and application

A technology of eugenol epoxy group and eugenol epoxy group, which is applied in the field of silsesquioxane, can solve the problems of difficult to meet the high temperature application environment, low carbon residual of resin at high temperature, general thermal stability, etc., and achieve excellent Thermal stability, improved comprehensive performance, excellent high temperature resistance

Active Publication Date: 2022-04-22
ZHEJIANG UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the side chain of the POSS is a long aliphatic chain, the thermal stability is average, and the compatibility with the epoxy matrix still needs to be further improved, and the high-temperature residual carbon of the modified resin is low, which is difficult to meet the needs of high-temperature resistant application environments.

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 octaeugenol epoxy-based liquid cage silsesquioxane and its preparation method and application
  • A kind of octaeugenol epoxy-based liquid cage silsesquioxane and its preparation method and application
  • A kind of octaeugenol epoxy-based liquid cage silsesquioxane and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048]Add cage octapoly(dimethylsiloxy)silsesquioxane (1.25g, 1.23mmol) to the flask equipped with magnetic stirrer and reflux condenser under nitrogen atmosphere, excess eugenol epoxy (5.42g , 24.6 mmol), dry toluene (43 g) and Castel catalyst (300 ppm platinum content). The system was reacted at 110°C for 36h. The mixed solution was subjected to flash column chromatography to remove the catalyst, and the solvent was removed by rotary evaporation. The crude product was added to petroleum ether, stirred and washed several times at 60°C, and dried to obtain a viscous liquid that was octaeugenol epoxy cage silsesquioxane (record 8 EUEP-POSS, yield 90%).

[0049] Figure 1~3 According to the H NMR spectrum, silicon spectrum and mass spectrum of the eugenol epoxy-based liquid cage silsesquioxane prepared for the present invention, it can be confirmed through characterization that the prepared product conforms to the structure of formula (I).

Embodiment 2

[0051] Add clathrate octapoly(dimethylsiloxy)silsesquioxane (1.25g, 1.23mmol) to the flask equipped with magnetic stirrer and reflux condenser under nitrogen atmosphere, excess eugenol (6.78g, 30.75 mmol), dry toluene (101.7 g) and chloroplatinic acid catalyst (100 ppm platinum content). The system was reacted at 90°C for 36h. The mixed solution was subjected to flash column chromatography to remove the catalyst, and the solvent was removed by rotary evaporation, washed with methanol, and dried to obtain a viscous liquid which was octaeugenol epoxy cage silsesquioxane (yield: 80%).

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
glass transition temperatureaaaaaaaaaa
thermal decomposition temperatureaaaaaaaaaa
Login to View More

Abstract

The invention discloses an octagenol epoxy-based liquid cage silsesquioxane as well as a preparation method and application thereof. The structural formula of eugenol epoxy-based liquid cage silsesquioxane is shown in the following formula (I); the product of the present invention is a bio-based cage silsesquioxane, which is liquid at room temperature and has excellent thermal stability and Water resistance, can be used alone to prepare bio-based epoxy resin; also has good compatibility with carbon-based materials, as a modifier used in epoxy resin systems can achieve highly uniform dispersion at the nanometer scale, effectively improving the resin's hydrophobicity , heat resistance and impact resistance, and has broad application prospects in the preparation and application of high-performance hybrid or composite materials.

Description

technical field [0001] The invention relates to the technical field of silsesquioxanes, in particular to a eugenol epoxy-based liquid cage silsesquioxane, a preparation method thereof and an application in preparing bio-based epoxy resin nano-hybrid materials. Background technique [0002] As one of the three thermosetting resins, epoxy resin has excellent bonding, mechanical and electrical properties, and is widely used in adhesives, structural composite materials, electronic semiconductor packaging and other fields. But at the same time, there are also disadvantages such as high crosslinking density after curing, brittle quality, insufficient temperature resistance level and poor impact resistance. At present, the research on the modification of epoxy resin mainly focuses on performance improvement and environmental protection substitution. The performance in processing, mechanics, weather resistance, corrosion resistance and flame retardancy, etc., expands its applicatio...

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): C08G77/38C08G59/32C08G59/38
CPCC08G77/38C08G59/3281C08G59/38
Inventor 范宏张先伟郑杰元胡阳张晓静
Owner ZHEJIANG UNIV