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A study on the copolymerization kinetics of phenylethyl acrylate and phenylethyl methacrylate

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Abstract

Copolymers of phenyl alkyl acrylates/methacrylates are used clinically as soft materials for the foldable intraocular lens (IOL) to treat cataracts. In this study, copolymers of 2-phenylethyl acrylate (PEA) and 2-phenylethyl methacrylate (PEMA) of various compositions were prepared using free radical polymerization in solution. The composition of the copolymers was determined by1H-NMR analysis. The reactivity ratios of the monomers were calculated using the conventional Fineman-Ross or Kelen-Tudos method. The reactivity ratio of PEA (r 1) and PEMA (r 2) were estimated to be 0.280 and 2.085 using the Kelen-Tudos method, respectively. These values suggest that PEMA is more reactive in copolymerization than PEA, and the copolymers will have a higher content of PEMA units. The glass transition temperature (T g ) of the copolymers increased with increasing PEMA content. The molecular weight and polydispersity indices (M w /M n ) of the polymers were determined by GPC. Overall, these results are expected to be quite useful in applications to foldable soft IOL materials.

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Authors and Affiliations

  1. Dept. of Materials Science and Engineering, Research Center for Biomolecular Nanotechnology, Gwangju Institute of Science and Technology, 500-712, Gwangju, Korea

    Hanna Lee, Giyoong Tae & Young Ha Kim

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  1. Hanna Lee
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  2. Giyoong Tae
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  3. Young Ha Kim
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Correspondence to Young Ha Kim.

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Lee, H., Tae, G. & Kim, Y.H. A study on the copolymerization kinetics of phenylethyl acrylate and phenylethyl methacrylate. Macromol. Res. 16, 614–619 (2008). https://doi.org/10.1007/BF03218569

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  • DOI: https://doi.org/10.1007/BF03218569

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