N-substituted-2-propynamides. Highly reactive acetylene derivatives toward hydrogen migration polymerization

Polymer Journal

Volumn 32, Issue 3, 2000, Pages 303-305

  Nomura, Ryoji ^a   Nakako, Hideo ^a   Masuda, Toshio ^a  

^a KYOTO UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

GEL PERMEATION CHROMATOGRAPHY; HYDROGEN; INITIATORS (CHEMICAL); MOLECULAR STRUCTURE; MONOMERS; POLYACETYLENES; POLYMERIZATION; SOLUBILITY;

HYDROGEN MIGRATION POLYMERIZATION;

POLYAMIDES;

EID: 0033871261     PISSN: 00323896     EISSN: None     Source Type: Journal    
DOI: 10.1295/polymj.32.303     Document Type: Article

References (6)

1. D. S. Breslow, G. E. Hulse, and A. S. Matlack, J. Am. Chem. Soc., 79, 3760 (1957).
2. 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.
3. For reviews of polymerization of substituted acetylenes, see (a) T. Masuda, "Catalysis in Precision Polymerization," S. Kobayashi. Ed., Wiley, Chichester, 1997, Chapter 2.4.
4. (b) T. Masuda, "Polymeric Material Encyclopedia," J. C. Salamone, Ed., Vol. 1, CRC, New York, N.Y., 1996, pp 32-39.
5. G. M. Coppola and R. E. Damon, Synth. Commun., 23, 2003 (1993).
6. 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).