Double-decker-shaped silsesquioxane-containing benzoxazine resin

A kind of technology of silsesquioxane and benzoxazine, applied in the field of benzoxazine resin, can solve problems such as no benzoxazine resin report

Inactive Publication Date: 2012-11-14
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] But there is no report on the benzoxazine resin

Method used

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  • Double-decker-shaped silsesquioxane-containing benzoxazine resin
  • Double-decker-shaped silsesquioxane-containing benzoxazine resin
  • Double-decker-shaped silsesquioxane-containing benzoxazine resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0100] Weigh 0.5667g (0.491mmol) double-tower type methylsilsesquioxane (obtained according to US 7,169,873 B2) and 0.158g (0.454mmol) allylamine-biphenol type benzoxazine compound, dissolve in 10ml of toluene, nitrogen protection. Add 10 μL of Karstedt catalyst (Pt content 3-3.5%), and react for 12 hours. After separation and drying, 0.52 g of the product was obtained.

[0101] The infrared spectrum of the product is as figure 1 shown in . Depend on figure 1 It can be seen that at 993cm -1 The characteristic peak of C=C at the place disappears completely, indicating that the allyl group has completely reacted, 1226.33cm -1 Ar-O-C characteristic peak and 931.67cm -1 The N-C-O characteristic peak at 1132.44cm -1 The characteristic peak of Si-O-Si at 809.96cm -1 Si-CH at 3 The presence of characteristic peaks also indicates that the cage structure of the double-towered POSS has not changed.

[0102] The NMR spectrum of the product is figure 2 shown in . from figur...

Embodiment 2

[0109] Weigh 0.5667g (0.491mmol) double-tower type methylsilsesquioxane and 0.171g (0.491mmol) allylamine-biphenol type benzoxazine compound, dissolve in 10ml toluene, and pass into nitrogen Protect. Add 10 μL of Karstedt catalyst (Pt content 3-3.5%), and react for 12 hours. After separation and drying, 0.35 g of the product was obtained.

[0110] A TGA test was performed on the cured product of the product, and it was measured that the temperature at which the thermal weight loss was 5% was 458° C., and the residual carbon at 800° C. was 75%.

Embodiment 3

[0112] Weigh 0.5667g (0.491mmol) double-tower type methylsilsesquioxane and 0.191g (0.491mmol) allylamine-bisphenol A type benzoxazine compound, dissolve in 10ml of toluene, pass into Nitrogen protection. Add 10 μL of Karstedt catalyst (Pt content 3-3.5%), and react for 12 hours. After separation and drying, 0.32 g of the product was obtained.

[0113] A TGA test was performed on the cured product of the product, and it was measured that the temperature at which the thermal weight loss was 5% was 432° C., and the residual carbon at 800° C. was 71%.

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PUM

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Abstract

The invention discloses double-decker-shaped silsesquioxane-containing benzoxazine resin, its preparation method and a resin composition containing it. According to the invention, a hydrosilylation reaction is performed. By introducing double-silicon hydrogen double-decker-shaped silsesquioxane into a benzoxazine compound having two carbon-carbon double bonds on side chains and having two benzoxazine units in the molecular structure, the double-decker-shaped silsesquioxane-containing benzoxazine resin can be obtained. With excellent thermal performance, the double-decker-shaped silsesquioxane-containing benzoxazine resin, as thermosetting resin, has a wide application space.

Description

technical field [0001] The invention relates to a benzoxazine resin, in particular to a benzoxazine resin containing double-tower type silsesquioxane, as well as a preparation method and application of the resin. Background technique [0002] Benzoxazines are intermediates of a class of six-membered heterocyclic compounds composed of nitrogen and oxygen atoms synthesized from phenolic compounds, aldehydes and primary amine compounds. Cyclopolymerization produces nitrogen-containing networks similar to phenolic resins, called benzoxazine resins. In addition to the excellent properties of traditional phenolic resins such as high heat resistance, flame retardancy, excellent electrical and chemical properties, low water absorption, and low cost, benzoxazine resin does not release small molecules during the curing process. Zero shrinkage or slight expansion, the polymer has special advantages such as low thermal expansion coefficient, good high temperature resistance and mechani...

Claims

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Application Information

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IPC IPC(8): C08G77/52C08L83/14
Inventor 徐日炜王磊周莲张朋立梁佩茵余鼎声
Owner BEIJING UNIV OF CHEM TECH
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