Polybutylacrylate/poly（methyl methacrylate） Core-Shell Elastic Particles as Epoxy Resin Toughener: Part I Design and Preparation
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2004年第5期
论文作者：Myonghoon LEE
文章页码：522 - 526
摘 要：<正> Polybutylacrylate （PBA）/poly（methyl methacrylate） （PMMA） core-shell elastic particles （CSEP）, whose rubbery core diameter ranged from 0.08 μm to 1.38μm, were synthesized by using conventional emulsion polymerization, multi-step emulsion polymerization, and soapless polymerization. Allyl methacylate （ALMA） and ethylene glycol dimethacrylate （EGDMA） were selected as crosslinking reagents for core polymerization. Methacrylic acid （MAA） was used as functional co-monomer with methyl methacrylate as shell component. The content of vinyl groups in PBA rubbery core increased with the amount of crosslinking reagents. The core-shell ratio affected great on the morphology of the complex particles. Furthermore, the amounts of carboxyl on the surface of core-shell particles, copolymerized with acrylic acid, were determined by potentiometric titration. Results showed that methylacrylic acid was distributed mostly on the surface of particles.
Myonghoon LEE
摘 要：<正> Polybutylacrylate （PBA）/poly（methyl methacrylate） （PMMA） core-shell elastic particles （CSEP）, whose rubbery core diameter ranged from 0.08 μm to 1.38μm, were synthesized by using conventional emulsion polymerization, multi-step emulsion polymerization, and soapless polymerization. Allyl methacylate （ALMA） and ethylene glycol dimethacrylate （EGDMA） were selected as crosslinking reagents for core polymerization. Methacrylic acid （MAA） was used as functional co-monomer with methyl methacrylate as shell component. The content of vinyl groups in PBA rubbery core increased with the amount of crosslinking reagents. The core-shell ratio affected great on the morphology of the complex particles. Furthermore, the amounts of carboxyl on the surface of core-shell particles, copolymerized with acrylic acid, were determined by potentiometric titration. Results showed that methylacrylic acid was distributed mostly on the surface of particles.
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