2,4-Hexadiyne-1,6—diol, polymerization

X-RAY TOPOGRAPHIC STUDIES OF THE SOLID-STATE POLYMERIZATION OF PTS [2,4-HEXADIYNE DIOL BIS(p-TOLUENE SULPHONATE)]... 

The two-step process of epitaxial polymerization has been applied to symmetrically substituted diacetylenes First, the monomers have been crystallized epitaxially on alkali halides substrates from solution and the vapor phase. The oriented monomer crystals are then polymerized under the substrate s influence by gamma-irradiation. The diacetylenes in this study are 2,4-hexadiyn-l,6-diol (HD) and the bis-phenylurethane of 5,7-dodecadiyn-l,12-diol (TCDU). The polydiacetylene crystal structures and morphologies have been examined with the electron microscope. Reactivity and polymorphism are found to be controlled by the substrate. 

Numerous diacetylene polymerizations have been characterized. To select a few that have been well studied, 2,4-hexadiyne-l,6-diol(bis-(p-toluene sulfonate)) (16), bis-(phenylurethane) (17) [101], and3,5-octadiyne-l,8-diol (18) [104]... 

Garito, A. F., McGhie, A. R., Kalyanaraman, P. S. Kinetics of solid state polymerization of 2,4-hexadiyne-l,6-diol bis (p-toluene sulfonate). In Molecular metals. Hatfield, W. E. (ed.). New York Plenum Press 1979, pp. 255-260... 

G. Wegner, Topochemical reactions of monomers with conjugated triple bonds I. polymerization of 2.4-hexadiyn-1.6-diols derivatives in crystalline state, Z. Naturf., 24b, 824 (1969). 

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