Preparation method of three-dimensional ordered cross-linked polystyrene (PS) colloidal crystal microspheres and application thereof
Three-dimensional ordered cross-linked polystyrene colloidal microspheres were prepared by combining soap-free emulsion polymerization and silicone oil spheroidization, which solved the problems of complex preparation and poor stability of colloidal crystals in the prior art and achieved high stability and wide application.
CN122404751APending Publication Date: 2026-07-17WUHAN INST OF TECH
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- WUHAN INST OF TECH
- Filing Date
- 2026-04-03
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
The preparation process of colloidal crystals in the existing technology is complex and has poor stability, making it difficult to apply widely.
Method used
A combination of soap-free emulsion polymerization and silicone oil spheroidization was used to modify polystyrene nanospheres by treating them with the crosslinking agent glutaraldehyde, forming three-dimensional ordered crosslinked polystyrene colloidal crystal microspheres with a particle size in the micrometer range and hydrophilic groups on the surface.
Benefits of technology
It simplifies the preparation process, improves the stability and sphericity of colloidal crystals, and expands the range of applications, especially in optical devices, photonic crystals, and biological and medical fields.
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Figure CN122404751A_ABST
Abstract
本发明公开了一种三维有序交联聚苯乙烯（PS）胶体晶体微球的制备方法及其应用，该方法包括：苯乙烯单体经碱洗去除阻聚剂；通过无皂乳液聚合制备改性聚苯乙烯纳米微球；将微球乳液稀释后加入交联剂，超声分散；再滴加于硅油中加热交联，经清洗、干燥，制得粒径为10–100 μm的三维有序交联聚苯乙烯（PS）胶体晶体微球。该微球表面含亲水性基团，内部以六方密堆积形式有序排列，结构稳定，能对紫外‑可见光‑红外波段产生布拉格衍射，可应用于光子晶体、光学器件、生物载体等领域。本发明方法简单、重复性好，无需表面活性剂，所得微球形度好、稳定性强。
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