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Oxirane-based polymer, preparation method thereof and application of polymer

A technology of oxirane and oxirane, which is applied in the field of oxirane polymers and its preparation, can solve the problems of harsh experimental conditions and complex synthesis routes, and achieve simple processing, easy-to-obtain reaction raw materials, The effect of cheap reaction raw materials

Inactive Publication Date: 2019-05-14
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, copolymer electrolytes based on polyethylene oxide have problems such as complex synthesis routes and harsh experimental conditions.

Method used

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  • Oxirane-based polymer, preparation method thereof and application of polymer

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Experimental program
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Effect test

Embodiment 1

[0022] (1) Synthesis of poly(ethylene oxide) 50 -co-tert-butyl methacrylate 50 )(P(EO 50 -co-BMA 50 )) random copolymer

[0023] Purified tert-butyl methacrylate (10 mmol, 1.42 g), tetrahydrofuran (5 mL), benzyl alcohol (0.1 mmol, 10.0 mg), and then ethylene oxide were added to a Slank flask equipped with a stirring bar. (10mmol, 0.44g), then "freeze vacuum-thaw" twice, thaw; put the slank bottle into the reaction bath at -40 ℃, add phosphazene base (0.1mmol, 100ul), react for 6h, and then It was moved to the reaction bath at 40°C and the reaction was continued for 18h. The reaction was terminated and n-hexane precipitated to give a white solid, which was dried in vacuo. Through nuclear magnetic analysis, it was found that the molar ratio of ethylene oxide and tert-butyl methacrylate in the obtained copolymer was basically the same as its charging ratio, and kept a relatively narrow molecular weight distribution, indicating that phosphazene base was used as the catalyst. ...

Embodiment 2

[0027] Synthetic P(EO 50 -co-BMA 50 ) random copolymer

[0028] Change the reaction solvent of embodiment 1 step (1) into toluene from tetrahydrofuran, and other implementation conditions and the synthesis of P(EO in Example 1) 50 -co-BMA 50 ) is the same as the random copolymer. Through the analysis of the polymer, the copolymer can also be successfully prepared by using toluene as the solvent.

Embodiment 3-6

[0030] Synthetic P(EO 50 -co-BMA 50 ) random copolymer

[0031] The initiator of embodiment 1 step (1) is changed from benzyl alcohol to ethylene glycol, butanediol, methyl alcohol or ethanol, and other implementation conditions and the synthesis of P(EO in Example 1) 50 -co-BMA 50 ) is the same as the random copolymer, through the analysis of the polymer, the copolymer can also be successfully prepared by using the above four alcohols as the initiator.

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Abstract

The invention belongs to the technical field of polymer synthesis, and discloses an oxirane-based polymer, a preparation method thereof and an application of the polymer. The method includes the steps: taking phosphonitrile alkali as a catalyst, taking benzyl alcohol, ethylene glycol, butanediol, methyl alcohol or ethyl alcohol as an initiator and directly catalyzing copolymerization of oxirane and tert-butyl methacrylate; removing tertiary butyl of the tert-butyl methacrylate in the polymer to obtain the oxirane-based polymer. The oxirane and the tert-butyl methacrylate serve as starting reactants, novel oxirane-based polyelectrolyte can be obtained by two steps, copolymers with different components can be prepared by changing charge rate, reaction raw materials are inexpensive and easy to obtain, reaction conditions are mild, treatment after reaction is simple, experimental operation is simple and easy, and the method has obvious economic benefits.

Description

technical field [0001] The invention belongs to the technical field of polymer synthesis, and in particular relates to an oxirane based polymer and a preparation method and application thereof. Background technique [0002] The structure and composition of polymers determine their properties, and polymers with special structures exhibit physicochemical properties that differ from simple linear polymers. The introduction of stimuli-responsive or biocompatible components into the polymer structure will endow the copolymer with good environmental responsiveness or potential use in biomedicine. Therefore, designing and synthesizing novel polymers to obtain unique properties has aroused great interest among researchers. [0003] Among solid-state polymer electrolytes, polyether-based polymer (such as polyethylene oxide, PEO) electrolytes are the focus of research. However, it also has many problems: the mobility of polymer segments is low, and the existence of crystalline phase...

Claims

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Application Information

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IPC IPC(8): C08G65/28C08F120/18C08F8/12B01F17/42H01M10/0565C09K23/42
CPCY02E60/10
Inventor 许进宝陈扬肖文昊雷彩红
Owner GUANGDONG UNIV OF TECH
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