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Preparation of cross-linked poly (methyl methacrylate) microspheres by post-crosslinking method and its application in light diffusers.
- Source :
-
Colloid & Polymer Science . Jun2023, Vol. 301 Issue 6, p613-622. 10p. - Publication Year :
- 2023
-
Abstract
- Cross-linked polymer microspheres are widely used in biomedicine, flat panel display, analytical testing, in vitro diagnostics, semiconductor chips, and light diffusion. However, the process of preparing micron-sized cross-linked polymer microspheres is complicated, and it is difficult to obtain a high crosslinking degree conveniently. In this work, we applied post-crosslinking strategy to prepare poly (methyl methacrylate) (PMMA) microspheres having a high crosslinking degree by dispersion polymerization, while the method separated the polymerization process and cross-linking process of microspheres. In the method, the silane coupling agents containing double bonds were used as the comonomer in polymerization and hydrolyzed to form Si–O–Si cross-linked structure at the later stage. The obtained microspheres are not only highly cross-linked but also have uniform particle size distribution and good thermal stability. The produced cross-linked PMMA microspheres exhibit great light diffusion properties and might be employed as a light diffusion agent in a polycarbonate matrix. We prepared the cross-linked PMMA microspheres by post-crosslinking method and mixed the cross-linked PMMA microspheres with the matrix PC to obtain the light diffusers. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0303402X
- Volume :
- 301
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Colloid & Polymer Science
- Publication Type :
- Academic Journal
- Accession number :
- 164080611
- Full Text :
- https://doi.org/10.1007/s00396-023-05091-4