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Method for preparing catalyst for preparing 1,1,5-trihydroperfluoropentyl methacrylate

A technology of methacrylic acid and perfluoropentyl ester, which is applied in the direction of organic compound/hydride/coordination complex catalysts, chemical instruments and methods, physical/chemical process catalysts, etc. Low catalytic activity and other problems, to achieve the effects of not easy to lose, improve service life, and high activity

Active Publication Date: 2015-04-08
NANTONG FINC PHARMA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process uses silica nanocomposite perfluorosulfonic acid resin solid acid catalyst, which has low catalytic activity and short service life, so it cannot be used for a long time

Method used

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  • Method for preparing catalyst for preparing 1,1,5-trihydroperfluoropentyl methacrylate
  • Method for preparing catalyst for preparing 1,1,5-trihydroperfluoropentyl methacrylate

Examples

Experimental program
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Effect test

Embodiment 1

[0020] The perfluorosulfonic acid ion exchange resin is a commercially available product, a CHF115 product produced by Shandong Huaxia Shenzhou New Material Co., Ltd., and the group type is Rf-SO3H.

[0021] Soak the perfluorosulfonic acid ion exchange resin in trifluoromethanesulfonic acid accounting for 150% of the mass percentage of the perfluorosulfonic acid ion exchange resin for 4 hours, and add 8% of the perfluorosulfonic acid ion exchange resin into neodymium trioxide , add citric acid with a mass percentage of 0.2% perfluorosulfonic acid ion exchange resin, react at 60°C for 10 hours, wash with ethanol, and dry to obtain a perfluorosulfonic acid ion exchange resin catalyst product loaded with neodymium trifluoromethanesulfonate. Numbered M-1.

Embodiment 2

[0023] Adding 5% neodymium trioxide accounting for the mass percentage of perfluorosulfonic acid ion exchange resin, the others are the same as in Example 1. The resulting product number was M-2.

Embodiment 3

[0025] The addition of neodymium trioxide accounting for 10% by mass of the perfluorosulfonic acid ion exchange resin is the same as in Example 1. The resulting product number was M-3.

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Abstract

The invention discloses a method for preparing a catalyst for preparing 1,1,5-trihydroperfluoropentyl methacrylate. According to the method, perfluorosulfonate ion-exchange resin is used as a carrier and then loaded with neodymium trifluoromethanesulfonate with a liquid-phase sedimentation method, meanwhile, a complexing agent is used for modification, and a product of the catalyst is produced. The perfluorosulfonate ion-exchange resin in the catalyst is a new kind of ion-exchange resin and has the advantages of high acidity, high thermal stability, high chemical stability and the like. The catalyst loaded with the neodymium trifluoromethanesulfonate has the good transesterification catalyzing performance. The complexation of the complexing agent and the neodymium trifluoromethanesulfonate can be realized under the acidic condition, so that neodymium ions are adsorbed on a resin matrix firmer and not prone to loss, and the service life of the catalyst is prolonged.

Description

technical field [0001] The invention relates to a method for preparing a catalyst, in particular to a method for preparing a catalyst for preparing methacrylic acid-1,1,5-trihydroperfluoropentyl ester. Background technique [0002] 1,1,5-trihydroperfluoropentyl methacrylate (abbreviated as OF-PMA) has the same excellent homopolymerization and copolymerization properties as common fluorine-free acrylate monomers. Its homopolymers and copolymers have the advantages of low surface free energy, low refractive index, radiation resistance, and chemical medium resistance. Recently, they are mostly used as coatings for abrasion resistance, weather resistance, chemical resistance, waterproof, and oil resistance, as well as plastic lenses. , heat-resistant shape memory materials, anti-reflection films, surface treatment coatings for silicone resin medical devices, fiber treatment agents, optical fiber materials, dental materials, etc., [0003] At present, the synthesis methods of fl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/22C07C69/54C07C67/08
Inventor 王琪宇王新
Owner NANTONG FINC PHARMA CHEM