Related Experiment Video
Updated: Aug 15, 2026
10:54
Facile and Efficient Preparation of Tri-component Fluorescent Glycopolymers via RAFT-controlled Polymerization
Published on: June 19, 2015
High-Loading Temperature-Responsive Fire-Extinguishing Microcapsules via RAFT Suspension Polymerization
Rui Cai1, Bingling Zhao1, Jiahe Zhang1
1Fujian Province Key Laboratory of Modern Analytical Science and Separation Technology, College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, China.
ACS Omega
|August 14, 2026
Summary
Researchers developed high-loading temperature-responsive fire-extinguishing microcapsules (TFMCs) using RAFT suspension polymerization. These novel TFMCs significantly improve fire-extinguishing efficiency, reducing extinguishing time by over 70%.
Area of Science:
- Materials Science
- Polymer Chemistry
- Fire Safety Engineering
Background:
- Temperature-responsive fire-extinguishing microcapsules (TFMCs) offer autonomous fire suppression.
- Low loading efficiency (<40%) in conventional TFMCs limits their fire-extinguishing performance.
- Developing high-loading TFMCs is crucial for enhanced fire safety applications.
Purpose of the Study:
- To develop a novel strategy for preparing high-loading TFMCs.
- To investigate the effect of RAFT polymerization on TFMC structure and performance.
- To optimize TFMC composition for maximum loading and encapsulation efficiency.
Main Methods:
- Utilized RAFT (Reversible Addition-Fragmentation chain Transfer) suspension polymerization to synthesize TFMCs.
- Employed poly-(methyl methacrylate-ethylene glycol dimethacrylate) (P-(MMA-EGDMA)) as shell material and DMTP as core material.
- Varied monomer ratios (MMA/MAA/EGDMA) and RAFT/ADVN ratios to optimize TFMC properties.
Main Results:
- Achieved a highest loading efficiency of 70.6% and encapsulation efficiency of 94.3% with optimized TFMCs.
- Optimized TFMCs exhibited a well-defined core-shell structure, spherical morphology, and average diameter of 946 nm.
- Fire-extinguishing tests demonstrated a significant reduction in extinguishing time from 58.5 s to 11.6 s.
Conclusions:
- RAFT polymerization is effective in creating well-defined core-shell structures for high-loading TFMCs.
- Optimized TFMC composition enhances shell integrity, suppressing agent leakage and improving fire-extinguishing performance.
- This work provides a promising approach for industrial application of high-performance TFMCs.
