Antibacterial sulfone polymer as well as preparation method and application thereof

Abstract

The invention discloses an antibacterial sulfone polymer as well as a preparation method and application thereof, and the structural formula of the sulfone polymer is shown as a formula I. The molecular chain terminal group of the sulfone polymer is a chlorphenesin group, so that an antibacterial substance with a proper chemical structure is fixed on the surface of a material by covalent binding and other methods so as to form a contact sterilization type antibacterial surface. Researches show that especially, escherichia coli, staphylococcus aureus, salmonella, listeria monocytogenes and thelike are cultured on the surface of the sulfone polymer (especially PPSU / PES) material containing the chlorobenzene glyceryl ether group for 24 hours, and the survival rate is lower than 1%. Results show that the contact with the surface of a bacteriostatic material only kills bacteria in contact with the surface and does not release the antibacterial agent to the surrounding environment, so thatthe antibacterial sulfone polymer is expected to have high antibacterial agent utilization rate and lasting antibacterial ability.

Description

Technical field[0001]The invention belongs to the technical field of polymer materials, and specifically relates to an antibacterial sulfone polymer and a preparation method and application thereof.Background technique[0002]Sulfone polymer is a special high-temperature resistant transparent thermoplastic engineering plastic, with outstanding heat resistance, giving it a very high long-term working temperature, excellent chemical resistance and special hot water hydrolysis and superheated steam, which can be up to 10,000 times or more High steam (190℃) heating without affecting the performance, excellent dimensional stability and excellent high temperature creep resistance, very low smoke and toxic gas emissions, good electrical performance. Since its development in the 1970s, it has experienced more than 50 years of development. With the improvement of material development, its application range is becoming wider and wider, including food hygiene, medical equipment, household applia...

AI Technical Summary

Problems solved by technology

At present, polyphenols have been recognized as natural antibacterial agents with antibacterial ability. The antibacterial effect of polyphenols is closely related to its phenolic hydroxyl group (-OH), and its antibacterial effect is mainly manifested in the following aspects: 1) These bases The interaction between the group and the bacterial cell membrane will destroy the membrane and cause the leakage of intracellular substances; 2) The hydroxyl active group promotes the delocalization of electrons and acts as a proton exchange to reduce the plasma membrane gradient of the bacterial cell, thereby causing the collapse of the proton power and the loss of energy. 3) The hydroxyl group is easy to combine with the active site of the enzyme, changing the metabolism of microorganisms; 4) The phenolic hydroxyl group can also inhibit the generation of active oxygen, scavenge free radicals, and reduce the redox potential. It is also possible that the reduced reduction potential is responsible for further limiting the growth of unfavorable microorganisms

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