Bijels stabilized by amphiphilic random polymer self-assembled aggregates prepared by one-step emulsification method

By using the self-assembled aggregates of the amphiphilic random polymer P(St-co-MAA) and adjusting the pH value to prepare Bijels, the complexity of the particulate emulsifiers that need to be modified in the prior art is solved, and a simple and efficient preparation and wide application of Bijels is realized.

CN120349527BActive Publication Date: 2026-09-04JIANGNAN UNIV
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Patent Information

Application Number
CN202510383266.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-09-04
Estimated Expiration
2045-03-28

AI Technical Summary

Technical Problem

Bijels are complex to prepare, usually requiring careful modification of the surface of the particulate emulsifier to adjust its wettability, and there are no reports of using amphiphilic polymers as oil-water interface stabilizers.

Method used

Bijels were prepared by using the amphiphilic random polymer poly(styrene-co-methacrylic acid) (P(St-co-MAA)) to achieve self-assembly into aggregates through pH control, followed by high-speed emulsification after mixing the aqueous and oil phases.

Benefits of technology

The preparation process of Bijels is simplified, and wettability can be controlled by adjusting the pH value of the polymer aqueous solution. The prepared Bijels are stable at room temperature and are suitable for sustained-release microcapsules, electrochemistry, food processing and biomedicine.

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Abstract

The application discloses a preparation of Bijels by a one-step emulsification method, and belongs to the technical field of emulsion preparation. The application adopts amphiphilic random polymer poly(styrene-co-methacrylic acid) (P(St-co-MAA)), which realizes self-assembly to form aggregates by pH control. Then, the P(St-co-MAA) aqueous solution is used as the water phase, mixed with the oil phase, and high-speed emulsified to obtain a double-continuous emulsion gel (Bijels). The Bijels have good stability, and can be used in the fields of slow-release microcapsules, electrochemistry, food processing, functional materials, biological medicine and the like.
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