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http://dx.doi.org/10.12925/jkocs.2018.35.2.502

The Effects of the Content of Hydroxyethyl Methacrylate in Fluorine-containing Acrylate Copolymers on Physical Properties  

Kim, KiSang (Department of Biochemical Engineering, College of Engineering Gangneungwonju National University)
Shim, Sang-Yeon (Department of Biochemical Engineering, College of Engineering Gangneungwonju National University)
Publication Information
Journal of the Korean Applied Science and Technology / v.35, no.2, 2018 , pp. 502-508 More about this Journal
Abstract
The acrylate copolymer having good coating, water-repellent and adhesion properties was designed and prepared. We prepared copolymers with high yield of > 95% using methyl methacrylate(MMA), 2,2,2-trifluoroethyl acrylate (FMA) and 2-hydroxyethyl methacrylate monomers(HEMA) by either bulk or emulsion polymerization techniques. The $^1H-NMR$ spectrum was used to identify chemical structure and DSC and DMA analysis were conducted. As a result, the glass transition temperature decreased by $3^{\circ}C$ as FMA content increased from 5% to 10%, and decreased by $2{\sim}8^{\circ}C$ when HEMA content increased from 5 % to 10 %. The physical properties were measured using Instron and TGA. As FMA or HEMA content increased by 10%, tensile strength decreased from 29 MPa to 22 MPa and Td decreased from $200^{\circ}C$ to $180^{\circ}C$ in both bulk and emulsion. The contact angle relatively decreased as hydrophilic HEMA content increased.
Keywords
fluorine-containing acrylate copolymers; bulk polymerization; emulsion polymerization; analysis of physical properties; contact angle;
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