Polyacetylenes synthesis

This, the second stage of the Durham polyacetylene synthesis (and presumably identical to the homopolymer [96570-67-1]) is capable of explosion with one sixth the energy of TNT. 

J. Chen, Z. Xie, J.W.Y. Chen, C.C.W. Law, and B.Z. Tang, Silole-containing polyacetylenes. Synthesis, thermal stability, light-emission, nanodimensional aggregation and restricted intramolecular rotation, Macromolecules, 36 1108-1117, 2003. 

Polyacetylene synthesis has long been a goal of polymer chemists and materials scientists because its rigid conjugated system could be an organic electrical conductor. Two approaches are outlined below. Propose mechanisms for how polyacetylene forms in both approaches. What are the structures of byproducts E and F 120... 

Lam JWY, Dong YP, Kwok HS, Tang BZ (2006) Light-emitting polyacetylenes synthesis and electrooptical properties of poly(l-phenyl-l-alkyne)s bearing naphthyl pendants. Macromolecules 39(20) 6997-7003. doi 10.1021/ma0612576... 

Ethynylcopper compounds, isolated or generated in situ, play a fundamental role in acetylene synthesis. The reactions basically are of three types the Glaser and Cadiot-Chodkiewicz oxidative couplings employed in polyacetylene synthesis, and the Castro coupling for preparing arylacetylenes (for comprehensive reviews of these reactions see ref. 9). 

Among Ziegler-Natta catalysts derived from the transition metals of groups 4-8 in combination with organometallic compounds of groups 1-3, soluble catalysts used for polyacetylene synthesis are listed in Table 7.2. 

Table 7.2 Soluble Catalysts Used for Polyacetylene Synthesis...

Figure 6), as a cross-linking comonomer in a polyacetylene synthesis. 

Zhao H, Sanda F, Masuda T (2006) Novel optically acitve polyacetylenes synthesis and helical conformation of L-lysine-dendronized poly(phenylacetylene). Macromol Chem Phys 207(21) 1921-1926. doi 10.1002/macp.200600259... 

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