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Synthesis and regular reflection property of cocoon-like poly(methyl methacrylate) particles by seeded suspension polymerization

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Abstract

Synthesis and optical properties of cocoon-like poly(methyl methacrylate) (CPM) particles in the size range of D n  = 3.0–6.5 μm were studied. The synthesis of these anisotropic particles consists of two steps. The spherical poly(methyl methacrylate) (PMA) particles (D n  = 2.2–5.5 μm) cross-linked by 0.2–0.8 wt% ethylene glycol dimethacrylate (EGDMA) were prepared by dispersion polymerization, using a combination of poly(vinyl pyrrolidone) (PVP) and sodium di-(2-ethylhexyl) sulfosuccinate (NaEHS) as a stabilizer in 94:840 water–methanol. Then, a suspension polymerization of 9:1 methyl methacrylate (MMA)/EGDMA in the presence of the PMA particles as seed at 85 °C in water gave non-spherical, cocoon-like CPM particles, depending on the cross-linking densities of PMA particles. The cocoon-like CPM particles (D n,c  = 4.0 μm) showed the characteristic features of regular reflection, which can not be attained for conventional poly(methyl methacrylate) particles with a spherical shape. The effects of seed PMA particles with different properties on the formation of cocoon-like CPM particles and their regular reflection properties are described.

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Authors and Affiliations

  1. Ganz Chemical Co., Ltd., 960 Shimoogura, Kaibara-cho, Hikami-Gun, Hyogo, 669-3305, Japan

    Naomi Ishii

  2. Department of Material Science and Biotechnology, Graduate School of Science and Engineering, Venture Business Laboratory, Ehime University, 3 Bunkyo-cho, Matsuyama, 790-8577, Japan

    Kenzo Inoue

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  1. Naomi Ishii
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  2. Kenzo Inoue
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Correspondence to Kenzo Inoue.

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Ishii, N., Inoue, K. Synthesis and regular reflection property of cocoon-like poly(methyl methacrylate) particles by seeded suspension polymerization. Polym. Bull. 63, 653–662 (2009). https://doi.org/10.1007/s00289-009-0116-1

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  • DOI: https://doi.org/10.1007/s00289-009-0116-1

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