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Carbon dioxide-based ionic antibacterial polyurethane as well as preparation method and application thereof

A carbon dioxide and ionic technology, applied in the field of carbon dioxide-based ionic antibacterial polyurethane and its preparation, polyurethane, to achieve good biological antibacterial properties, simple preparation method, and good structural adjustability

Inactive Publication Date: 2022-05-10
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, currently CO 2 Base ionic polyurethane has not been reported yet

Method used

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  • Carbon dioxide-based ionic antibacterial polyurethane as well as preparation method and application thereof
  • Carbon dioxide-based ionic antibacterial polyurethane as well as preparation method and application thereof
  • Carbon dioxide-based ionic antibacterial polyurethane as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] This embodiment provides a carbon dioxide-based ionic antibacterial polyurethane, which is prepared through the following steps:

[0032] Dissolve 1 mmol CO in 10 mL DMSO 2 Derivatized ionic cyclic carbonate with imidazolium as cation and bromide as anion with addition of 1 mmol hexamethylenediamine and CO 2 Derivatized ionic cyclic carbonate 20 mol% DBU. The above precursor solution was poured into a round bottom flask, purged with nitrogen for 5 minutes to remove oxygen, then the temperature was raised to 80°C, stirred and reacted for 24 hours, washed with ethyl acetate for many times, precipitated and dried to obtain CO 2 Based on ionic polyurethane, the antibacterial rate against Staphylococcus aureus and Escherichia coli is over 99%.

[0033] CO in this example 2 The antibacterial effect of base ionic polyurethane on Escherichia coli is as follows: figure 1 shown. The comparison sample is a blank sample.

Embodiment 2

[0035] This embodiment provides a carbon dioxide-based ionic antibacterial polyurethane, which is prepared through the following steps:

[0036] Dissolve 0.5 mmol CO in 10 mL DMSO 2 Derivatized ionic cyclic carbonate with imidazole as the cation and iodide as the anion with addition of 0.5 mmol hexamethylenediamine and CO 2 Derivatized ionic cyclic carbonate 20 mol% DBU. The above precursor solution was poured into a round bottom flask, purged with nitrogen for 5 minutes to remove oxygen, then the temperature was raised to 80°C, stirred and reacted for 24 hours, washed with ethyl acetate for many times, precipitated and dried to obtain CO 2 Based on ionic polyurethane, the antibacterial rate against Staphylococcus aureus and Escherichia coli is over 99%.

Embodiment 3

[0038] This embodiment provides a carbon dioxide-based ionic antibacterial polyurethane, which is prepared through the following steps:

[0039] Dissolve 1 mmol CO in 10 mL DMSO 2 Derivatized ionic cyclic carbonate with imidazolium as the cation and tetrafluoroborate ion as the anion with the addition of 1 mmol hexamethylenediamine and CO 2 Derivatized ionic cyclic carbonate 20 mol% DBU. The above precursor solution was poured into a round bottom flask, purged with nitrogen for 5 minutes to remove oxygen, then the temperature was raised to 100°C, stirred and reacted for 24 hours, washed with ethyl acetate for many times, precipitated and dried to obtain CO 2 Based on ionic polyurethane, the antibacterial rate against Staphylococcus aureus and Escherichia coli is over 99%.

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Abstract

The invention provides carbon dioxide-based ionic antibacterial polyurethane as well as a preparation method and application thereof. The preparation method comprises the following steps: taking ionic cyclic carbonate derived from carbon dioxide and a diamine compound as monomers, and carrying out polymerization reaction under the action of a catalyst to obtain the carbon dioxide-based ionic antibacterial polyurethane. The invention also provides the antibacterial polyurethane prepared by the preparation method. The preparation method of the carbon-dioxide-based ionic antibacterial polyurethane is simple and environmentally friendly, resource utilization of carbon dioxide is achieved, and the carbon-dioxide-based ionic antibacterial polyurethane has potential application prospects in the field of antibacterial high polymer materials.

Description

technical field [0001] The invention relates to a polyurethane, in particular to a carbon dioxide-based ionic antibacterial polyurethane and a preparation method thereof, belonging to the technical field of functional polymer materials. Background technique [0002] Although carbon dioxide (CO 2 ) have seriously affected the ecological environment and social development. But from the perspective of green chemistry, CO 2 It is a C1 raw material with abundant reserves, low price, non-toxic and renewable, green and environmental protection. After decades of development, CO 2 It has been transformed into a variety of high value-added chemical products, such as methanol, urea, carbamic acid, cyclic carbonate, polycarbonate, polyurethane and polyurea, etc. [0003] Currently, the CO 2 Converted into a polymer material with excellent performance is CO 2 One of the important ways of solidification and utilization. Among them, polyurethane exhibits excellent wear resistance, o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G71/04
CPCC08G71/04
Inventor 严锋周莹杰郭江娜
Owner SUZHOU UNIV
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