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Macromolecule with main chain containing thioether group and synthesis method thereof

A synthesis method and polymer technology are applied in the field of polymers containing sulfide groups in the main chain and their synthesis, which can solve problems such as lack of functional groups, and achieve cheap and easy-to-obtain raw materials, clear end-group structures, and no metal residues. Effect

Active Publication Date: 2022-08-05
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the aliphatic polythioether obtained by this process route is composed of thioether chains and lacks other functional groups.

Method used

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  • Macromolecule with main chain containing thioether group and synthesis method thereof
  • Macromolecule with main chain containing thioether group and synthesis method thereof
  • Macromolecule with main chain containing thioether group and synthesis method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 3

[0091] Example 1 Triethylene glycol diacrylate / COS / H 2 O reacts to form a polymer with repeating units in the main chain containing thioether groups

[0092] Before the polymerization reaction, a 10 mL reaction kettle was removed at 110°C for about 2 hours to remove moisture and cooled to room temperature; a certain mass of alkali 1,8-diazabicyclo[5.4.0]undec- 7-ene, 0.8609g triethylene glycol diacrylate and 0.066g H 2 O, and then charged with 0.22g of COS. The molar ratio of triethylene glycol diacrylate, water, COS and base was 50 / 55 / 55 / 1. Placed at 25 ° C and reacted under high pressure for 48 h. After the reaction, the crude product was first dissolved in dichloromethane, and then the polymer was precipitated in a mixture of 200 mL of ethanol / hydrochloric acid (molar concentration of hydrochloric acid: 5%), repeated washing three times, and vacuum dried to constant weight. The molecular weight and molecular weight distribution of the polymer were determined by gel chro...

Embodiment 18 3

[0099] Example 18 Triethylene glycol diacrylate / COS / H 2 O reacts to form a polymer with repeating units in the main chain containing thioether groups

[0100] Before the polymerization reaction, a 10 mL reaction kettle was removed at 110°C for about 2 hours to remove moisture and cooled to room temperature; a certain mass of alkali 1,8-diazabicyclo[5.4.0]undec- 7-ene, 0.8609g triethylene glycol diacrylate and 0.24g H 2 O, and then charged with 0.22g of COS. The molar ratio of triethylene glycol diacrylate, water, COS and base was 50 / 200 / 55 / 1. Placed at 60 ° C and reacted under high pressure for 72 h. After the reaction, the crude product was first dissolved in dichloromethane, and then the polymer was precipitated in a mixture of 200 mL of ethanol / hydrochloric acid (molar concentration of hydrochloric acid: 5%), repeated washing three times, and vacuum dried to constant weight. The molecular weight and molecular weight distribution of the polymer were determined by gel chr...

Embodiment 19 3

[0101] Example 19 Triethylene glycol diacrylate / COS / H 2 O reacts to form a polymer with repeating units in the main chain containing thioether groups

[0102] Before the polymerization reaction, a 10 mL reaction kettle was removed at 110°C for about 2 hours to remove moisture and cooled to room temperature; a certain mass of alkali 1,8-diazabicyclo[5.4.0]undec- 7-ene, 0.8609g triethylene glycol diacrylate and 0.30g H 2 O, and then charged with 0.22g of COS. The molar ratio of triethylene glycol diacrylate, water, COS and base was 50 / 250 / 55 / 1. Placed at 60 ° C and reacted under high pressure for 120 h. After the reaction, the crude product was first dissolved in dichloromethane, and then the polymer was precipitated in a mixture of 200 mL of ethanol / hydrochloric acid (molar concentration of hydrochloric acid: 5%), repeated washing three times, and vacuum dried to constant weight. The molecular weight and molecular weight distribution of the polymer were determined by gel ch...

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Abstract

The invention discloses a polymer with a main chain containing a thioether group and a synthesis method of the polymer. The structural general formula of the polymer with the main chain containing the thioether group is shown in formulas (I)-(IV). The synthesis method comprises the following steps: by taking a two-double bond monomer, a sulfur-carbon-containing monomer and water as raw materials and taking alkali as a catalyst, carrying out polymerization under self-generated pressure; the di-double bond monomer is selected from one or more of a diacrylate monomer, a bisacrylamide monomer, a divinyl sulfone monomer and a bismaleimide monomer; the sulfur-containing carbon-one monomer is selected from COS and / or CS2. The polymer with the main chain containing the thioether group has a clear structure, a main chain repeating unit has a thioether structure and contains different functional groups, and end groups are double bonds; the polymer with the main chain containing the thioether group also has higher molecular mass and excellent mechanical properties, and has wide application prospects in the fields of food packaging, coatings, biology and electronics.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a polymer with a sulfide group in the main chain and a synthesis method thereof. Background technique [0002] Due to the introduction of sulfur atoms, sulfur-containing polymers generally have excellent mechanical properties, thermal stability, optical functions, biocompatibility and strong ion binding ability, and have a wide range of applications in general, engineering and functional materials. For example, vulcanized rubber, since its discovery in 1839, has become the main raw material of tires and still plays an irreplaceable role in the modern society on wheels. Another example is polyphenylene sulfide, as a special engineering plastic with excellent comprehensive properties, it is widely used in the fields of electronic appliances, aerospace and other cutting-edge materials. As an important variety of sulfur-containing polymers, the main chain sulfide group-con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G75/045
CPCC08G75/045Y02E60/10
Inventor 夏燕妮张成建张兴宏
Owner ZHEJIANG UNIV