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Two-dimensional NMR studies of polypropylene tacticity

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Summary

The 1H and 13C NMR spectral assignments of polypropylene tacticity are revised using two-dimensional NMR techniques. The 13C-1H hetero-nuclear shift correlation (CSCM) permits all tactic sequences to be assigned on 1H NMR. The 1H NMR J-coupling connectivities are confirmed with 1H shift-correlated (COSY) experiments. These techniques enable correct assignments to be made of previously uncertain tactic sequences in the 1H and 13C NMR spectra of stereoirregular polypropylene.

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Authors and Affiliations

  1. Research Center, Hercules Incorporated, 19894, Wilmington, DE, USA

    H. N. Cheng

  2. Sun Refining and Marketing Company, P. O. Box 1135, 19061, Marcus Hook, PA, USA

    G. H. Lee

Authors
  1. H. N. Cheng
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  2. G. H. Lee
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Cheng, H.N., Lee, G.H. Two-dimensional NMR studies of polypropylene tacticity. Polymer Bulletin 13, 549–556 (1985). https://doi.org/10.1007/BF00263477

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  • DOI: https://doi.org/10.1007/BF00263477

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