Poly[(1,4-phenylenevinylene)-alt-(1,3-phenylenevinylene)]s with different length of side chain: their synthesis and optical properties

Poly[(2,5-dialkoxy-1,4-phenylenevinylene)-alt-(1,3-phenylenevinylene)]s (PpPVmPVs) with various length of alkyl side chains have been synthesized by using Wittig reaction. Polymer structure and olefin bond geometry (cis- and trans-CHCH) are characterized