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Optimum Condition for Non-Aqueous Dispersion Polymerization of Environmentally-friendly Acrylic Resin  

Oh, Dae Geun (Department of Chemical Engineering, University of Suwon)
Lee, Kyung Hoon (Department of Chemical Engineering, University of Suwon)
Kim, Wan Tae (Department of Chemical Engineering, University of Suwon)
Min, Byung Hoon (Department of Chemical Engineering, University of Suwon)
Chung, Dae-won (Department of Polymer Science and Engineering, University of Suwon)
Lee, Jong Doo (Nanokor Co. Ltd.)
Kim, Jeong Ho (Department of Chemical Engineering, University of Suwon)
Publication Information
Applied Chemistry for Engineering / v.19, no.4, 2008 , pp. 370-375 More about this Journal
Abstract
Optimum synthesis conditions were investigated for the non-aqueous dispersion (NAD) polymerization of environmentally-friendly acrylic resin. The optimum amount of stabilizer was observed to be 20 wt% to prevent flocculation of the synthesized polymer particles. The optimum ratio of aliphatic solvents to aromatic solvents turned out to be 80 to 20 in order to obtain a stabilized NAD resins. The viscosity of NAD resins was affected not only by the reaction time but also by the amount of initiator and the impeller rpm. Also, the particle size and the size distribution were influenced by the amount of stabilizers and initiators. Since the stability of NAD resin was devastated by the increase in particle size when all the monomers were fed at the beginning of polymerization, the monomers need to be put into the reactor step by step throughout the entire polymerization process.
Keywords
NAD; dispersion polymerization; acrylic resin;
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