Abstract
Poly(methyl methacrylate) (PMMA) microspheres were synthesized through visible light–induced photopolymerization of methyl methacrylate (MMA). 2,4,6-Trimethylbenzoyldipenylphosphine oxide (TPO), polyvinylpyrrolidone (PVP), and light-emitting diodes (LEDs) were used as the photoinitiator, stabilizer, and light source, respectively. No other additive was involved. The effect of LEDs, TPO, and PVP was discussed. Results showed that PMMA microspheres with the size of 0.5–0.8 μm could be obtained when LED@385 nm was the light source, and the content of TPO and PVP was 2 wt% and 30 wt% of MMA. Moreover, the possible formation pathway of PMMA microspheres was proposed based on the investigation of reaction time and addition method of PVP.
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Funding
This work was funded by the National Natural Science Foundation of China (Grant Nos. 21103099, 21676285, and 21306214), Basic Research Projects in Science and Technology Program of Qingdao (13-1-4-242-jch), Qingdao Indigenous Innovation Program (No. 15-9-1-76-jch), and Research Foundation of Qingdao Fusilin Chemical Science &Technology Co., Ltd. (FSL-RF 2016).
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Chuanbao Xie and Kangwei Leng shared as co-first author of this article
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Xie, C., Leng, K., Sheng, J. et al. Preparation of poly(methyl methacrylate) microspheres via photopolymerization initiated by LED light source. Colloid Polym Sci 298, 1285–1291 (2020). https://doi.org/10.1007/s00396-020-04694-5
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DOI: https://doi.org/10.1007/s00396-020-04694-5