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Photosensitive random copolymer honeycomb porous film and preparation method thereof

A random copolymer and photosensitivity technology, which is applied in the field of photosensitive random copolymer honeycomb porous film and its preparation, can solve the problems of single product type, harsh anionic polymerization reaction conditions and few monomers, and achieves good ordering. Effect

Inactive Publication Date: 2014-04-09
LIAOCHENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the most common film-forming substances are polystyrene and its copolymers obtained by anionic polymerization, but the anionic polymerization reaction conditions are harsh and the applicable monomers are less, and the product types are single, which greatly limits the application of honeycomb porous membranes. practical application

Method used

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  • Photosensitive random copolymer honeycomb porous film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The photosensitive random copolymer polystyrene-co-polymethacryloxyethyl cinnamate (PS-co-PCEMA) is composed of the following raw materials in parts by weight:

[0028] A component 1

[0029] Styrene 10

[0030] Azobisisobutyronitrile 0.03

[0031] 1,4 dioxane 10

[0032] Wherein: The weight fraction and proportioning of A component are as follows:

[0033] Hydroxyethyl methacrylate 1

[0034] Cinnamoyl Chloride 1.5

[0035] Triethylamine 1

[0036] Dichloromethane 7

[0037] The preparation method of the photosensitive random copolymer is as follows: mix the hydroxyethyl methacrylate, cinnamoyl chloride, triethylamine, and dichloromethane of the above-mentioned component A in proportion, stir evenly, and react in an ice-water bath for 24 hours. The product was sequentially washed with deionized water, saturated K 2 CO 3 solution and deionized water, distill the extract under reduced pressure below 40°C, add absolute ethanol to dissolve, recrystallize, and vac...

Embodiment 2

[0043] The photosensitive random copolymer polystyrene-co-polymethacryloxyethyl cinnamate (PS-co-PCEMA) is composed of the following raw materials in parts by weight:

[0044] A component 1

[0045] Styrene 10

[0046] Azobisisobutyronitrile 0.025

[0047] 1,4 dioxane 10

[0048] Wherein: The weight fraction and proportioning of A component are as follows:

[0049] Hydroxyethyl methacrylate 1

[0050] Cinnamoyl Chloride 1.6

[0051] Triethylamine 1

[0052] Dichloromethane 8

[0053] The preparation method of the photosensitive random copolymer is as follows: mix the above-mentioned hydroxyethyl methacrylate, cinnamoyl chloride, triethylamine, and dichloromethane in proportion, stir evenly, and react in an ice-water bath for 24 h , the product was sequentially washed with deionized water, saturated K 2 CO 3 solution and deionized water for extraction, the extract was distilled under reduced pressure below 40°C, dissolved in absolute ethanol, recrystallized, and vacuum-...

Embodiment 3

[0058] A photosensitive random copolymer polystyrene-co-polymethacryloxyethyl cinnamate (PS-co-PCEMA), composed of the following raw materials in parts by weight:

[0059] A component 1

[0060] Styrene 12

[0061] Azobisisobutyronitrile 0.03

[0062] 1,4 dioxane 12

[0063] Wherein: The weight fraction and proportioning of A component are as follows:

[0064] Hydroxyethyl methacrylate 1

[0065] Cinnamoyl Chloride 1.7

[0066] Triethylamine 1

[0067] Dichloromethane 8

[0068] The preparation method of the photosensitive random copolymer is as follows: mix the hydroxyethyl methacrylate, cinnamoyl chloride, triethylamine, and dichloromethane of the above-mentioned component A in proportion, stir evenly, and react in an ice-water bath for 24 hours. The product was sequentially washed with deionized water, saturated K 2 CO 3 solution and deionized water for extraction, distill the extract under reduced pressure below 40 ℃, add absolute ethanol to dissolve, recrystalli...

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Abstract

The invention relates to a random copolymer polystyrene-co-poly-methacryloyl ethyl cinnamate (PS-co-PCEMA) with photosensitivity and a preparation method of a honeycomb ordered porous film. The honeycomb ordered porous film disclosed by the invention has the characteristics that the method is simple in preparation technology, and good in porous film ordering property, and the prepared honeycomb ordered porous film has photosensitivity.

Description

technical field [0001] The invention relates to a photosensitive random copolymer honeycomb porous film and a preparation method. Background technique [0002] Since the French scientist Francois et al. dropped the carbon disulfide solution of polystyrene star polymer or block polymer on a solid substrate to prepare a film and found that an ordered porous structure was formed on the surface of the polymer film, the water droplet template based on solvent volatilization This method has become an attractive method for preparing ordered microstructured materials. The prepared honeycomb ordered membrane has the advantages of uniform pore size distribution and highly ordered pore arrangement. It has very important application prospects. At present, the most common film-forming substances are polystyrene and its copolymers obtained by anionic polymerization, but the conditions of anionic polymerization are harsh and the applicable monomers are less, and the product types are sin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/08C08F220/28C08J9/28
Inventor 王利平陈立风李光高至亮李娅茹毕玉红张丽敏
Owner LIAOCHENG UNIV
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