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Macro porous crosslinking sulfonic acid per-fluoroalkyl polystyrene ion exchange resin and its preparing process

A technology of polystyrene resin and ion exchange resin, which is applied in the field of macroporous cross-linked sulfonic acid perfluoroalkyl polystyrene ion exchange resin and its preparation, and can solve problems such as no fundamental breakthrough in methods and products

Inactive Publication Date: 2005-10-19
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above two types of resins develop independently, and only improve their own shortcomings in a limited space, but there is no fundamental breakthrough in methods and products. This is the current bottleneck in the development of cation exchange resins.

Method used

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  • Macro porous crosslinking sulfonic acid per-fluoroalkyl polystyrene ion exchange resin and its preparing process
  • Macro porous crosslinking sulfonic acid per-fluoroalkyl polystyrene ion exchange resin and its preparing process
  • Macro porous crosslinking sulfonic acid per-fluoroalkyl polystyrene ion exchange resin and its preparing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1) CClF of perfluoro-2-(2-fluorosulfonyl-ethoxy)propionyl peroxide 2 CCl 2 Preparation of solution F: immerse a 100ml reaction bottle in an ice-salt bath at -15°C. Under slow stirring, add 8.0ml of 10wt% sodium hydroxide aqueous solution, 1.15ml of 30wt% hydrogen peroxide and 50ml of CCl 2 FCClF 2 , after stirring for 5 minutes, quickly added 6.92g of perfluoro-2-(2-fluorosulfonyl-ethoxy) propionyl fluoride FO 2 SCF 2 CF 2 OCF (CF 3 ) COF, the reaction was carried out for 2 minutes, then the stirring was stopped, and the reaction mixture was separated completely, and the oil layer was successively washed with 5wt% NaHCO 3 After washing with aqueous solution and distilled water, add no sodium sulfate, shake well for a few minutes, and let it stand in an ice bath for 30 minutes to obtain CClF of perfluoro-2-(2-fluorosulfonyl-ethoxy)propionyl peroxide 2 CCl 2 F solution;

[0027] 2) Preparation of macroporous crosslinked p-perfluoro-[1-(2-fluorosulfonyl)ethoxy]eth...

Embodiment 2

[0032] 1) CClF of perfluoro-{2-[2-(2-fluorosulfonyl-ethoxy)propoxy]}propionyl peroxide 2 CCl 2 Preparation of solution F: immerse a 100ml reaction bottle in an ice-salt bath at -15°C. Under slow stirring, add 8.0ml of 10wt% sodium hydroxide aqueous solution, 1.15ml of 30wt% hydrogen peroxide and 50ml of CCl 2 FCClF 2 , after stirring for 5 minutes, quickly added 10.24 g of perfluoro-{2-[2-(2-fluorosulfonyl-ethoxy)propoxy]}propionyl fluoride FO 2 SCF 2 CF 2 OCF (CF 3 ) CF 2 OCF (CF 3 ) COF, the reaction was carried out for 2 minutes, then the stirring was stopped, and the reaction mixture was separated completely, and the oil layer was successively washed with 5wt% NaHCO 3 After washing with aqueous solution and distilled water, add sodium sulfate-free, shake well for a few minutes, and let it stand in an ice bath for 30 minutes to obtain perfluoro-{2-[2-(2-fluorosulfonyl-ethoxy)propoxy ]} propionyl peroxide CClF 2 CCl 2 F solution;

[0033] 2) Preparation of macrop...

Embodiment 3

[0037] 1) CClF of perfluoro-2-(2-fluorosulfonyl-ethoxy)propionyl peroxide 2 CCl 2 Preparation of solution F: immerse a 100ml reaction bottle in an ice-salt bath at -15°C. Under slow stirring, add 8.0ml of 10wt% sodium hydroxide aqueous solution, 1.15ml of 30wt% hydrogen peroxide and 50ml of CCl 2 FCClF 2 , after stirring for 5 minutes, quickly added 6.92g of perfluoro-2-(2-fluorosulfonyl-ethoxy) propionyl fluoride FO 2 SCF 2 CF 2 OCF (CF 3 ) COF, the reaction was carried out for 2 minutes, then the stirring was stopped, and the reaction mixture was separated completely, and the oil layer was successively washed with 5wt% NaHCO 3 After washing with aqueous solution and distilled water, add no sodium sulfate, shake well for a few minutes, and let it stand in an ice bath for 30 minutes to obtain CClF of perfluoro-2-(2-fluorosulfonyl-ethoxy)propionyl peroxide 2 CCl 2 F solution;

[0038] 2) Preparation of macroporous crosslinked p-perfluoro-[1-(2-fluorosulfonyl)ethoxy]eth...

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Abstract

The present invention provides macroporous sulfonic acid crosslinked perfluoroalkyl polystyrene ion exchange resin and its preparation process. The ion exchange resin includes prepared through reaction between omega-halosulfonyl perfluoroacyl peroxide and macroporous crosslinked polystyrene resin and subsequent hydrolysis and acidification. The ion exchange resin has high acidity, great specific surface area, easy-to-access active center, high heat stability, simple synthesis and other advantages. It has ion exchange equivalent of 0.7-2.2 mmol / g, and may be used in organic catalysis, environment protection and other fields.

Description

technical field [0001] The invention relates to a functional polymer material and a preparation method thereof, in particular to a macroporous cross-linked sulfonic acid perfluoroalkyl polystyrene ion exchange resin and a preparation method thereof. Background technique [0002] Macroporous cation exchange resins have a history of more than 40 years and are widely used in gas or liquid phase adsorption catalysis, ion exchange, sewage treatment and other fields. Cation exchange resins mainly include super acid type, strong acid type and weak acid type. Superacid cation exchange resins are mainly perfluorosulfonic acid ion exchange resins, such as Nafion series resins produced by Dupont; strong acid cation exchange resins are mainly polystyrene sulfonic acid resins, such as Amberlyst series resins produced by Rom & Hass ; Weak acid cation exchange resins are mainly polystyrene carboxylic acid, phosphoric acid and other series of resins. [0003] Macroporous cation exchange r...

Claims

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Application Information

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IPC IPC(8): C08J5/20C08L25/06
Inventor 赵成学贺海鹰管传金林正欢
Owner SHANGHAI JIAO TONG UNIV
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