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For a recent review of hydrogen migration polymerization, see, Y. Imanishi, “Comprehensive Polymer Science,” G. C. Eastmond, A. Ledwith, S. Russo, and P. Sigwalt, Ed., Pergamon Press, Oxford, 1989, Vol.4, Chapter 30.
For reviews of polymerization of substituted acetylenes, see (a) T. Masuda, “Catalysis in Precision Polymerization,” S. Kobayashi, Ed., Wiley, Chichester, 1997, Chapter 2.4.
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The vinyl protons of monosubstituted polyacetylenes are usually very broad and at times undetectable unless the polymer backbone has very high cis stereoregularity. Therefore, we believe that vinyl protons generated by the acetylene polymerization are not clearly detected. Therefore, it seems appropriate to estimate the ratio of hydrogen migration unit to acetylene polymerization unit from the integrated intensities of the vinyl (a−d) and methylene protons (A and B).
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Nomura, R., Nakako, H. & Masuda, T. N-Substituted-2-propynamides. Highly Reactive Acetylene Derivatives toward Hydrogen Migration Polymerization. Polym J 32, 303–305 (2000). https://doi.org/10.1295/polymj.32.303
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DOI: https://doi.org/10.1295/polymj.32.303