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PS-b-P4VP copolymer film and preparation method thereof

A ps-b-p4vp, copolymer technology, applied in the direction of electrophoretic plating, coating, electrolytic coating, etc., to achieve the effect of good monodispersity, accelerated polymerization reaction, and uniform potential distribution

Pending Publication Date: 2020-11-27
JIANGXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the current electrochemical polymerization methods are mainly bulk polymerization, solution polymerization, etc., there are few reports on the preparation of polymer copolymer films by electrochemical emulsion polymerization.

Method used

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  • PS-b-P4VP copolymer film and preparation method thereof
  • PS-b-P4VP copolymer film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for electrochemically preparing PS-b-P4VP copolymer film, comprising the following steps:

[0026] S1: Add polyvinyl alcohol to absolute ethanol to form solution A with a concentration of 45g / L; uniformly mix azobisisobutyronitrile and styrene at a mass ratio of 1:100 to obtain solution B; Mixed with solution B to obtain mixed solution C, the volume fraction of styrene in mixed solution C is 30%; under the protection of nitrogen, the solution C is heated to 70 ° C, and the reaction is stirred at a rate of 200rmp for 7h to obtain a polystyrene precursor ; Then the polystyrene precursor is formulated into a 50wt% emulsion;

[0027] S2: Immerse the ITO conductive glass sheet in the electrochemical workstation vertically into the polystyrene emulsion, take it out after 2 minutes and put it vertically into the constant temperature and humidity chamber. Take it out for later use;

[0028] S3: Uniformly mix sodium 120,000 sulfonate and deionized water at a solid-liq...

Embodiment 2

[0032] A method for electrochemically preparing PS-b-P4VP copolymer film, comprising the following steps:

[0033] S1: Add polyvinyl alcohol to absolute ethanol to configure solution A with a concentration of 40g / L; uniformly mix azobisisobutyronitrile and styrene at a mass ratio of 3:100 to obtain solution B; Mixed with solution B to obtain mixed solution C, the volume fraction of styrene in mixed solution C is 30%; under the protection of nitrogen, the solution C is heated to 70 ° C, and the reaction is stirred at a rate of 200rmp for 6h to obtain a polystyrene precursor ; Then the polystyrene precursor is formulated into a 45wt% emulsion;

[0034] S2: Immerse the ITO conductive glass sheet in the electrochemical workstation vertically into the polystyrene emulsion, take it out after 2 minutes and put it vertically into the constant temperature and humidity chamber. The temperature of the constant temperature and humidity chamber is controlled at 40°C and the relative humidi...

Embodiment 3

[0039] A method for electrochemically preparing PS-b-P4VP copolymer film, comprising the following steps:

[0040] S1: Add polyvinyl alcohol to absolute ethanol, and configure solution A with a concentration of 50g / L; azobisisobutyronitrile and styrene are uniformly mixed in a mass ratio of 5:100 to obtain solution B; solution A Mixed with solution B to obtain mixed solution C, the volume fraction of styrene in mixed solution C is 30%; under the protection of nitrogen, the solution C is heated to 70°C, and stirred at a rate of 200rmp for 8h to obtain a polystyrene precursor ; Then the polystyrene precursor is formulated into a 60wt% emulsion;

[0041] S2: Immerse the ITO conductive glass sheet in the electrochemical workstation vertically into the polystyrene emulsion, take it out after 1 min and put it vertically into the constant temperature and humidity chamber. After h, take it out for use;

[0042] S3: uniformly mix sodium lakhyl sulfonate and deionized water at a solid...

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Abstract

The invention discloses a PS-b-P4VP copolymer film and a preparation method thereof. The preparation method comprises the following steps: synthesizing a polystyrene precursor at first and preparing an emulsion from the polystyrene precursor; immersing an ITO conductive glass sheet in an electrochemical workstation into the polystyrene emulsion for a certain period of time, taking out the ITO conductive glass sheet, and carrying out heat preservation under proper temperature and humidity conditions to form a PS array; and immersing the conductive glass sheet coated with the PS array into an electrochemical reaction system containing 4-vinylpyridine and the emulsion, starting an electrochemical workstation, and controlling a potential range to be 1.0-3.0 V, a scanning speed to be 15-25 mV / Sand reaction time to be 4-8 h to obtain the PS-b-P4VP copolymer film. According to the brand-new synthesis method of the PS-b-P4VP copolymer film, a synthesis path of the copolymer film is enriched;and the copolymer film prepared by adopting the method provided by the invention is better in quality.

Description

technical field [0001] The invention belongs to the technical field of copolymer film preparation, and in particular relates to a PS-b-P4VP copolymer film and a preparation method thereof. Background technique [0002] Electrochemical polymerization has the advantages of being carried out at normal temperature and normal pressure, and can synthesize the required organic products by controlling voltage or different motors, so that the electrochemical preparation of high molecular polymers has been widely used. Since the currently studied electrochemical polymerization methods are mainly bulk polymerization, solution polymerization, etc., there are few reports on the preparation of polymer copolymer films by electrochemical emulsion polymerization. Contents of the invention [0003] In order to solve the problems of the prior art, the object of the present invention is to overcome the deficiencies in the prior art and provide a method for electrochemically preparing PS-b-P4V...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08F293/00C08F226/06C25D13/08C08L53/00
CPCC08J5/18C08F293/00C08F226/06C08J2353/00
Inventor 刘小强林燕飞
Owner JIANGXI UNIV OF SCI & TECH
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