Silicon-containing polyacetylenes

Many substituted polyacetylenes (e.g., all the polymers in Table 25) are completely soluble in low-polarity solvents such as toluene and chloroform. Their solubility can be attributed to the presence of substituents and their amorphous structure. When inspected in more detail, aliphatic and silicon-containing polyacetylenes are soluble in aliphatic solvents such as hexane but insoluble in 1,2-dichloroethane, whereas aromatic polyacetylenes show the opposite solubility property. 

Masuda T, Higashimura T (1989) Synthesis and properties of silicon-containing polyacetylenes. In Zeigler JM, Fearon FWG (eds) Silicon-based polymer science. Advances in chemistry, vol 224, pp 641-661, chapter doi 10.1021/ba-1990-0224.ch035... 

Masuda, T. Higashimura, T., Synthesis and Properties of SUicon-Containing Polyacetylenes. In Silicon-Based Polymer Science. A Comprehensive Resource, Zei-gler, J. M. Fearon, F. W. G., Eds. American Chemical Society Washington, DC, 1990 Vol. 224. pp 641-661. 

Graczyk, T, and Harrod, J. F., Novel catalyst system for the production of polyacetylene and of blends of polyacetylene with some silicon containing polymers, J. Polym. Set A Polym. Chem., 32, 3183-3188 (1994). 

Sakurai, H. (1996) Novel Tr-electron systems derived from silicon-containing macro-cyclic polyacetylenes. Pure and Applied Chemistry, 68(2), 327-333. 

Another interesting application is the manufacture of polyacetylenes using diacetylenes containing silicone [2]. There are various possibilities ... 

Another important advance was the modification of the polymerization conditions, e.g. using silicone oil or other viscous media. For instance, (CH) can be polymerized at room temperature to yield a new N-polyacetylene of at least the same quality as the standard S-(CH)jc obtained at — 78°C. Table 3.1 contains the results [18]. 

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