Polyacetylene shielding

Fig. 5 The observed and calculated components of the I3C shielding tensors of cis- and /ra s-polyacetylenes. The directions of the principal axes are indicated at the bottom( the angles between the C-H bond and the direction of oH for trans- and cis-polyacetylenes are 16°and 17°, respectively).

Figure 8 Thickness dependence of total shielding efficiency (SET) of highly conducting polymers (A) stretched heavily iodine doped Tsukamoto polyacetylene, (B) camphor sulfonic acid doped polyaniline cast from m-cresol solvent, (C) PFg doped polypyrrole.

Figure 8.1. Thickness dependence of total Shielding Efficiency (SE,) of highly conducting polymers measured at 6.5 GHz (from [23c]) sample A stretched heavily iodine doped Tsukamoto polyacetylene (dotted line is obtained by using calculation of Se, with approximated values of a absorption coefficient and n) sample B unstretched heavily iodine doped Tsukamoto polyacetylene sample C camphor sulphonic acid doped polyaniline in m-cresol solvent sample D PFe doped polypyrrole sample E TSO doped polypyrrole Inset comparison of (microwave conductivity), c, and tan 6, Reprinted from ref. 23c with permission. Copyright American Institute of Physics.

FIGURE 46.39. Comparison of total shielding efficiency (SEt) of highly conducting polymers versus sample thickness. Sample A stretched heavily iodine doped Tsukamoto polyacetylene sample B unstretched heavily iodine doped Tsukamoto polyacetylene sample C PAN-CSA (m-cresol) sample D PPy(PFe) sample E PPy(TsO) (from Ref. [207]). The inset shows the microwave transport parameters o-mw. Ct. and tanS for each of the materials. 

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