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Hyperbranched organic silicon ion liquid as well as preparation method and application thereof

An ionic liquid and organosilicon technology, applied in the field of hyperbranched organosilicon ionic liquid and its preparation, can solve the problems of insufficient heat resistance, toughness, mechanical properties and workability, long curing time and high curing temperature, and achieves easy availability of raw materials. , lower viscosity and curing temperature, the effect of simple synthesis process

Active Publication Date: 2018-07-27
SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, benzoxazine still has problems such as high curing temperature, long curing time, insufficient heat resistance, toughness, mechanical properties and processability.

Method used

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  • Hyperbranched organic silicon ion liquid as well as preparation method and application thereof
  • Hyperbranched organic silicon ion liquid as well as preparation method and application thereof
  • Hyperbranched organic silicon ion liquid as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (a) React 8.20g of N-methylimidazole and 10.61g of mercaptopropionic acid at 40°C for 3h. After the reaction, wash with 20mL×3 anhydrous ether (that is, wash with 20mL of anhydrous ether each time, repeat washing 3 times ) to obtain the sulfhydryl ionic liquid MimMP.

[0027] (b) After mixing 2.28g of AHRSS-1, 5.64g of MimMP and 0.08g of photoinitiator Irgacure 184D evenly, irradiate with ultraviolet light for 15min (wavelength is 365nm, light source power 2kW, power density 80W / cm), to obtain the first A hyperbranched organosilicon ionic liquid AHRSSMimMP-1 with a number average molecular weight of 700g / mol.

Embodiment 2

[0029] (a) 8.20 g of N-methylimidazole and 10.61 g of mercaptopropionic acid were reacted at 40° C. for 3 h. After the reaction, they were washed with 20 mL×3 anhydrous ether to obtain the mercapto ionic liquid MimMP.

[0030] (b) After mixing 6.59g of AHRSS-2, 5.95g of MimMP and 0.12g of photoinitiator Irgacure 184D, irradiate with ultraviolet light for 14min (wavelength is 365nm, light source power 2kW, power density 80W / cm), to obtain the second The hyperbranched organosilicon ionic liquid AHRSSMimMP-2, the number average molecular weight is 2200g / mol.

Embodiment 3

[0032] (a) 8.20 g of N-methylimidazole and 10.61 g of mercaptopropionic acid were reacted at 40° C. for 3 h. After the reaction, they were washed with 20 mL×3 anhydrous ether to obtain the mercapto ionic liquid MimMP.

[0033] (b) After mixing 17.47g of AHRSS-3, 11.29g of MimMP and 0.29g of photoinitiator Irgacure 651, irradiate with ultraviolet light for 13min (wavelength is 365nm, light source power 2kW, power density 80W / cm), to obtain the second The first generation hyperbranched organic silicon ionic liquid AHRSSMimMP-3, the number average molecular weight is 5100g / mol.

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PUM

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Abstract

The invention discloses hyperbranched organic silicon ion liquid, which is prepared from sulfhydryl ionic liquid and end vinyl hyperbranched organic silicon polymers through thiol-olefin click reaction. The invention also discloses a preparation method and application of the hyperbranched organic silicon ion liquid. The hyperbranched organic silicon ion liquid can be prepared through conventionalreaction; the synthesis process is simple; the raw materials can be easily obtained; the method is suitable for industrial production; the prepared hyperbranched organic silicon ion liquid has the functions of lowering the viscosity and the curing temperature and enhancing the intensity and the toughness on benzoxazine resin.

Description

technical field [0001] The invention relates to the technical field of hyperbranched ionic liquid and its preparation method, in particular to a hyperbranched organosilicon ionic liquid and its preparation method and application. Background technique [0002] Hyperbranched polymers have the characteristics of highly branched structure, approximate spherical molecular shape, a large number of active end groups available for modification on the outer surface, and unique microporous structure inside. Compared with linear polymers, it exhibits less molecular chain entanglement, less crystallization, low viscosity, better solubility and higher chemical reactivity, and more functional materials can be obtained through terminal group modification. These excellent properties make hyperbranched polymers show broad application prospects in many aspects such as polymer blending modification, coatings, drug release, and self-assembled films. Ionic liquids have many characteristics such...

Claims

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Application Information

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IPC IPC(8): C08G83/00C08L61/34C08L87/00
CPCC08G83/006C08L61/34C08L87/00
Inventor 张俊珩米晓茜周继亮张道洪
Owner SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES