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Solvent effect in radical copolymerisation of N-vinylcarbazole and methylmethacrylate

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Summary

Radical copolymerisation of MMA(r1) and NVC(r2) yields values of the apparent reactivity ratios r1 = 1.80, r2 = 0.06 (benzene) and r1 = 0.57, r2 = 0.75 (methanol) at 55°C. It is suggested that the apparent increase in reactivity of NVC in methanol arises from high local monomer concentrations due to formation of microphases containing the growing copolymer chains in which NVC is preferentially partitioned. Fluorescence emission and u.v. absorption spectra for copolymers prepared in both solvents are identical and consistent with the occurrence of only very short sequences of NVC units.

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Authors and Affiliations

  1. Department of Inorganic, Physical and Industrial Chemistry, University of Liverpool, L69 3BX, Liverpool, UK

    Anthony Ledwith & Giancarlo Galli

  2. Centro di Studio del C.N.R. per le Macromolecole Stereordinate ed Otticamente Attive, via Risorgimento 35, 56100, Pisa, Italy

    Emo Chiellini & Roberto Solaro

Authors
  1. Anthony Ledwith
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  2. Giancarlo Galli
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  3. Emo Chiellini
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  4. Roberto Solaro
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Ledwith, A., Galli, G., Chiellini, E. et al. Solvent effect in radical copolymerisation of N-vinylcarbazole and methylmethacrylate. Polymer Bulletin 1, 491–499 (1979). https://doi.org/10.1007/BF00255714

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  • DOI: https://doi.org/10.1007/BF00255714

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