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Mid-IR real-time monitoring of the carbocationic polymerization of isobutylene and styrene

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Abstract.

The in-situ monitoring of the living carbocationic polymerization of isobutylene (IB) and styrene (St) with a fiber optic Attenuated Total Reflection (ATR) probe in the mid-IR "fingerprint" range is reported here for the first time. Monomer consumption was followed by the disappearance of the C=C stretching for both IB and St, and the C−H bending of the CH3-group in IB. The formation of polyisobutylene (PIB) was also monitored by tracing the asymmetrical doublet characteristic of C−H bending of the t-butyl groups of the PIB. Conversion measurements by conventional off-line gravimetry correlated well with the new technique.

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Authors and Affiliations

  1. Department of Chemical and Biochemical Engineering, University of Western Ontario, London, Ontario, Canada N6A 5B9, , , , , , CA

    Judit E. Puskas & Wayne E. Pattern

  2. Department of Inorganic Chemistry I, University of Bayreuth, D-95440 Bayreuth, Germany, , , , , , DE

    Michael G. Lanzendörfer

Authors
  1. Judit E. Puskas
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  2. Michael G. Lanzendörfer
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  3. Wayne E. Pattern
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Received: 27 August 1997/Revised version: 2 November 1997/Accepted: 20 November 1997

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Puskas, J., Lanzendörfer, M. & Pattern, W. Mid-IR real-time monitoring of the carbocationic polymerization of isobutylene and styrene. Polymer Bulletin 40, 55–61 (1998). https://doi.org/10.1007/s002890050223

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  • DOI: https://doi.org/10.1007/s002890050223

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