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Method for producing polymer compound

A technology of polymer compounds and polymer electrolytes, applied in electrochemical generators, fuel cell components, electrolyte holding devices, etc., can solve problems such as insufficient water resistance and solvent resistance

Inactive Publication Date: 2007-02-28
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the polymer compound obtained by the above method cannot fully meet the requirements of water resistance and solvent resistance as a fuel cell material, so it is necessary to provide a method for preparing a polymer compound, so that the polymer compound can be used in this respect. be further improved

Method used

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  • Method for producing polymer compound
  • Method for producing polymer compound
  • Method for producing polymer compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] When the ambient atmosphere is Ar, add 3.84g (14.5mmol) of potassium 2,5-dichlorobenzenesulfonate, 6.23g (39.88mmol, 2.75eq) of 2,2'-dipyridine and 70mL of DMSO into the flask, and heat up under stirring To 80°C, 9.97 g (36.25 mmol, 2.5 eq) of bis(1,5-cyclooctadiene) nickel (0) was added at this temperature. Then, it was kept under stirring at this temperature for 5 hours. After standing to cool to room temperature, inject the reaction liquid into the excess methanol, filter the generated black polymer, and use 6mol / dm 3 Washed with aqueous HCl solution, the obtained polymer was dispersed at 6mol / dm 3 In the HCl aqueous solution, salts were removed by dialyzing through a dialysis membrane, and water was distilled off under reduced pressure to obtain 1.19 g of poly-p-phenylenesulfonic acid. The molecular weights of the obtained substances were as follows, and were the same as those in the sample when incubated for 3 hours.

[0090]

[0091] Mn=2.4×10 5 q+r150...

Embodiment 2

[0094] In Example 1, except that when the temperature was raised to 45°C, bis(1,5-cyclooctadiene) nickel (0) was added at this temperature, and then the temperature was raised to 80°C in 1 hour, and kept stirring at this temperature for 5 Except for these changes, the rest were carried out according to Example 1 to obtain 1.03 g of poly-p-phenylenesulfonic acid. The molecular weights of the obtained substances were as follows, and were the same as those in the sample when incubated for 3 hours.

[0095]

[0096] Mn=7.0×10 4 q+r400(r=0)

[0097] The obtained polymer compound had good film-forming properties, no cracks, good solvent resistance, and no weight loss.

Embodiment 3

[0099] In Example 1, in addition to using 1.50 g (5.66 mmol) of potassium 2,5-dichlorobenzenesulfonate, 3.98 g (15.84 mmol) of 2,5-dichlorobenzophenone and 9.72 g of 2,2'-dipyridine (62.23mmol, 2.89eq), the temperature was raised to 60°C, and after adding 15.56g (56.57mmol, 2.63eq) of bis(1,5-cyclooctadiene) nickel (0) at this temperature, the temperature was raised to 80°C in 1 hour. ℃, kept stirring at this temperature for 6 hours except for these changes, the others were reacted according to Example 1. After cooling, add the reaction solution to 6mol / dm 3 In aqueous HCl solution, filter the resulting precipitate, and use 6mol / dm 3 After washing several times with aqueous HCl solution, it was dispersed in boiling water, stirred for 2 hours, filtered, and washed twice to obtain 3.70 g of poly-p-phenylenesulfonic acid. The molecular weights of the obtained substances were as follows, and were the same as those of the samples at the time of incubation for 3 hours.

[0100] M...

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Abstract

A method for polymerizing a monomer represented by the formula (1) or copolymerizing a monomer represented by the formula (1) and a monomer represented by the formula (2) in the co-presence of a condensation agent comprising a transition metal complex, to thereby produce a polymer compound represented by the formula (3): X<1>-Ar<1>-X<2> (1) X<3>-Ar<2>-X<4> (2) -(Ar<1>)q-(Ar<2>)r- (3) [X<1>, X<2>, X<3> and X<4> represent groups separating in the condensation, Ar<1> represents a two-valent aromatic group having at least a sulfonic acid or a sulfonic acid via a connecting group as a substituent, q represents a positive number, r represents 0 or a positive number, and the sum of q and r is 300 or more, characterized in that the above condensation agent and the above monomer are mixed at a temperature of 45 DEG C or higher. The above method allows the production of a polymer compound which exhibits excellent fuel cell characteristics and has a high molecular weight.

Description

technical field [0001] The invention relates to a high molecular compound and a preparation method of the high molecular compound suitable for a fuel cell. Background technique [0002] As a separator of an electrochemical device such as a primary battery, a secondary battery, or a solid polymer fuel cell, a polymer compound having proton conductivity, that is, a polymer electrolyte is generally used. For example, represented by Nafion (registered trademark of Dupont Corporation), conventionally mainly use perfluoroalkylsulfonic acid with superacid in side chain and aliphatic polymer compound with perfluoroalkane in main chain as active ingredients. Polymer electrolytes are excellent in power generation characteristics when used as membrane materials and ion exchange components for fuel cells. However, such polymer electrolytes have problems of high cost and poor heat resistance. [0003] On the other hand, polyphenylenes containing sulfonic acid are known as polymer elect...

Claims

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Application Information

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IPC IPC(8): C08G61/00H01B1/06H01M8/02H01M8/0289H01M8/1023H01M8/1067
CPCY02E60/523Y02E60/50
Inventor 小野寺彻大内一荣佐佐木繁
Owner SUMITOMO CHEM CO LTD
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