Preparation of poly(methyl methacrylate) microspheres via photopolymerization initiated by LED light source

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,...

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Bibliographic Details
Published in:Colloid and polymer science 2020-10, Vol.298 (10), p.1285-1291
Main Authors: Xie, Chuanbao, Leng, Kangwei, Sheng, Jie, Wang, Xuemei, Li, Qianmin, Song, Liang, Liu, Lei, Sun, Hejing, Huang, Xiaowen, Wang, Zhongwei, Yu, Qing
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Complex Fluids and Microfluidics
Food Science
Light emitting diodes
Light sources
Microspheres
Nanotechnology and Microengineering
Original Contribution
Photoinitiators
Photopolymerization
Physical Chemistry
Polymer Sciences
Polymethyl methacrylate
Polyvinylpyrrolidone
Reaction time
Soft and Granular Matter
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Summary: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. Graphical abstract
ISSN:0303-402X
1435-1536
DOI:10.1007/s00396-020-04694-5