Polymers Incorporating Phospholes

Biphenyl-phosphole copolymer 65 is isolated as an air-stable and soluble powder exhibiting a rather high molecular weight (Mw = 16 000 Mn = 6200) according to gel permeation chromatographic (GPC) analysis. Although multinuclear magnetic resonance spectroscopy and elemental analysis support the proposed structure, the presence of a small number of diene defects is very likely. Polymer 65 

It is likely that the P atoms of the as-synthesized film obtained from the o3,X3-derivative 35 are protonated, at least partially, since the electropolymerization process generates protons [15a]. The polymers prepared with neutral phospholes 

Monomer max/ onset (nm) Ep/1 (V) Polymer p-Dopinga n-Dopinga Amax (nm) Ciset (nm) 

In conclusion, for the most part, polymers incorporating phosphole units are still rare. However, the work described above demonstrates that they are accessible via a number of diverse synthetic routes including organometallic coupling or electropolymerization processes. The general property-structure relationships established with well-defined small oligomers have been shown to extend to the corresponding polymeric materials. 

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Polymers incorporating phosphole subunits are still very rare. However, the pioneering work described in this section shows that such macromolecules are... 

More recently, the two main characteristics of the phosphole ring (i.e. low aromaticity and reactivity of the P-atom) have been extensively exploited for the molecular engineering of new u-conjugated molecular materials for opto-elec-tronic purposes [32—40]. Many so-caUed small molecules and polymers incorporating phosphole moieties have been prepared (Fig. 11.2), and the study of their... 

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