Second monomer of acrylonitrile copolymer solid-solid phase change material and preparation method and use of second monomer

A technology of acrylonitrile-based copolymer and phase change material, which can be used in the preparation of ester group and hydroxyl group, heat exchange materials, chemical instruments and methods, etc.

Inactive Publication Date: 2014-08-13
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Acrylonitrile-based copolymer phase change materials h...

Method used

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  • Second monomer of acrylonitrile copolymer solid-solid phase change material and preparation method and use of second monomer
  • Second monomer of acrylonitrile copolymer solid-solid phase change material and preparation method and use of second monomer
  • Second monomer of acrylonitrile copolymer solid-solid phase change material and preparation method and use of second monomer

Examples

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Embodiment 1

[0067] ①Preparation of the second monomer of acrylonitrile-based copolymer solid-solid phase change material

[0068] The material selected in this embodiment and its content are:

[0069] Polyethylene glycol alkyl ether: polyethylene glycol 100 (HO (CH 2 CH 2 O) 100 H);

[0070] Ester monomers containing unsaturated double bonds: ethyl acrylate monomer;

[0071] The molar ratio of polyethylene glycol 100 and ethyl acrylate monomer is 85:15;

[0072] Catalyst: sodium methyl, the consumption is 9% of the mass sum of polyethylene glycol 100 and ethyl acrylate monomer;

[0073] Polymerization inhibitor: cuprous chloride, the dosage is 1% of the mass sum of polyethylene glycol 100 and ethyl acrylate monomer;

[0074] The preparation method is as follows:

[0075] Add methyl sodium, cuprous chloride and polyethylene glycol 100 (HO(CH 2 CH 2 O) 100 H), stirring while raising the system temperature to 30°C, all the reactants melted, and then heating to make the system tempe...

Embodiment 2

[0083] ①Preparation of the second monomer of acrylonitrile-based copolymer solid-solid phase change material

[0084] Polyethylene glycol 100 in embodiment 1 is replaced by diethylene glycol cetyl ether (HO(CH 2 CH 2 O) 2 C 16 h 33 ); ethyl acrylate monomer is replaced by propyl acrylate; catalyst sodium methyl is replaced by benzenesulfonic acid, and consumption is 2% of diethylene glycol cetyl ether and propyl acrylate quality and; Copper is replaced by hydroquinone, and the dosage is 1% of the mass sum of diethylene glycol cetyl ether and propyl acrylate, and the second monomer diethylene glycol cetyl ether monoacrylate is prepared in the same way , the yield was 76%.

[0085] ②Preparation of acrylonitrile-based copolymer phase change materials by solution polymerization

[0086] The solvent N'N'-dimethylformamide in the implementation 1 is replaced by dimethyl sulfoxide (the reaction monomer concentration is 50wt%), and the reaction monomer is acrylonitrile and The ...

Embodiment 3

[0092] ①Preparation of the second monomer of acrylonitrile-based copolymer solid-solid phase change material

[0093] Polyethylene glycol 100 in embodiment 1 is replaced by polyethylene glycol behenyl ether (HO(CH 2 CH 2 O) 100 C 22 h 45 ); the ethyl acrylate monomer is replaced by n-propyl methacrylate; the second monomer polyethylene glycol behenyl ether mono-n-propyl methacrylate is prepared in the same way, wherein n-propyl methacrylate drops After the addition, the temperature of the system was controlled at 90° C., and the reaction was carried out for 18 hours, and the yield was 87%.

[0094] ②Preparation of acrylonitrile-based copolymer phase change materials by solution polymerization

[0095] The solvent N'N'-dimethylformamide in Example 1 is replaced by N-methylpyrrolidone (the reaction monomer concentration is 30wt%), and the reaction monomer is acrylonitrile with a uniform molar ratio of 95:5 and the second monomer polyethylene glycol behenyl ether mono-n-pro...

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Abstract

The invention discloses a second monomer of an acrylonitrile copolymer solid-solid phase change material and a preparation method of the second monomer, a method for preparing the acrylonitrile copolymer solid-solid phase change material from the second monomer, and a method for preparing a thermo-regulated fiber/film from the prepared phase change material. The second monomer is prepared from polyoxyethylene lauryl ether reacting with ester monomers containing unsaturated double bonds in the presence of a catalyst and a polymerization inhibitor. The acrylonitrile copolymer solid-solid phase change material is prepared from the second monomer, the melting point of the material can be lower than the decomposition temperature, and the acrylonitrile copolymer solid-solid phase change material is applicable to melt spinning. The phase change material is spun and filmed under the melting condition after being mixed with a thermal stabilizer, so as to prepare the fiber/film with good energy storage and temperature adjustment performances.

Description

technical field [0001] The present invention relates to a second monomer of acrylonitrile and its preparation method and use, in particular to a second monomer of acrylonitrile-based copolymer solid-solid phase change material and its preparation method and use. Background technique [0002] Polyacrylonitrile fiber (acrylic fiber) is one of the most important textile polymer fiber materials, and polyacrylonitrile is also the most important carbon fiber raw material. However, the decomposition temperature (250°C) of polyacrylonitrile is lower than its melting point (317°C), so that crosslinking and cyclization have occurred without melting when heated, so the solution spinning process (dry method, wet method) has been used all the time. method and wet and dry method) to produce acrylic fiber. The solution spinning process is long, and there is environmental pollution to varying degrees. Compared with the solution spinning process, the melt spinning process has low energy co...

Claims

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Application Information

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IPC IPC(8): C08G65/48C07C67/03C07C69/54C08F290/06C08F220/44C08F220/28C09K5/02D01F6/54D01F6/38D01D5/08C08L51/08C08L33/20B29C47/92B29C48/92
CPCB29C2947/92838B29C47/0026B29C2947/92561B29C2947/92314B29C2947/92704B29C2947/92485B29C47/92B29C48/10B29C48/40B29C48/92B29C2948/92314B29C2948/92485B29C2948/92561B29C2948/92704B29C2948/92838
Inventor 韩娜张兴祥张智力王栋王乐军于万永
Owner TIANJIN POLYTECHNIC UNIV
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