6533b852fe1ef96bd12ab547
RESEARCH PRODUCT
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Ulf StalmachHeinz KolshornHerbert Meiersubject
chemistry.chemical_classificationPolymers and PlasticsSeries (mathematics)Absorption spectroscopyGeneral Chemical EngineeringDispersityPolymerConjugated systemSpectral lineUltraviolet visible spectroscopychemistryPolymer chemistryPhysical chemistryAbsorption (electromagnetic radiation)description
On the basis of an extended series of monodisperse oligomers of the dialkoxy-substituted phenyleneethenylenes 1a–i the Eqs. (3) and (4) were conceived in order to determine the limiting values of the energies Ei and the wavelengths λi of the UV/vis absorption. The convergence of the Ei, and λi values with a growing number n of repeating units permits a precise prediction of the Ei,∞ and λi,∞ values of the corresponding polymer 1j as well as a statement about the overall effect of conjugation ΔEi and the effective conjugation length ECL. A great variety of different conjugated oligomers 2–14 can be evaluated by the same algorithm.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1997-09-01 | Acta Polymerica |