Polyacetals Polyacetylene

Poly(4-phenoxybenzoyl-1,4-phenylene) (PPBP), sulfonated, 23 718 Polyacetal, antioxidant applications, 3 121 Polyacetaldehyde, 1 103 Polyacetal fiber, 13 392 Polyacetylene, 7 514-515 26 953 conduction in, 7 527 22 208 molecular structure of, 22 211 optical band gap, 7 529t Peierls distortion in, 22 203, 208 room temperature conductivity, 7 532 synthesis of, 22 213... 

From the absorption spectrum of poly-33 film, the band gap energy of poly-33 was evaluated to be 1.95 eV (Figure 9), which is larger than that of trans-polyacetylene but comparable to that of cis-polyacet-ylene.2 The electrical conductivity of the film was 10 Q cm at room temperature and increased with temperature with an activation energy of about... 

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