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Synthesis and Applications of Reactive Polymer Modifiers for Asphalt(1)  

Hwang, Ki-Seob (Department of Chemical Engineering, Keimyung University)
Ahn, Won-Sool (Department of Chemical Engineering, Keimyung University)
Suh, Soong-Hyuck (Department of Chemical Engineering, Keimyung University)
Ha, Ki-Ryong (Department of Chemical Engineering, Keimyung University)
Publication Information
Polymer(Korea) / v.31, no.1, 2007 , pp. 68-73 More about this Journal
Abstract
This study is on the synthesis of reactive polymer modifiers by emulsion polymerization to improve properties of asphalt for paving. Styrene, methyl methacrylate (MMA), isoprene and glycidyl methacrylate (GMA) which has epoxy ring to react with carboxyl group of asphaltene were used to synthesize polymer modifiers. Modifiers with various composition were tested miscibility with asphalt. Modifiers which showed good miscibility with asphalt were investigated by DSC for $T_g$. Existence of epoxy rings and their reaction with asphaltene wore investigated by FTIR. Molecular structures of synthesized modifiers were confirmed by $^1H-NMR$. The synthesized modifiers which showed good miscibility had their $Tg in the range of $37.5{\sim}56.5^{\circ}C$ and had isoprene contents of 30 wt%. They showed good miscibility in the 1 and 2 wt% concentrations, but not in the 3 wt% concentration.
Keywords
asphalt modifier; emulsion polymerization; miscibility;
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