Patent ID: 8450449
Filing Date: 2013-05-28
Classification: C08G,C09K,G02F

Abstract:
1. A random conjugated copolymer, comprising the structure -[(D) x A] n -, wherein x is greater than 1 and polydispersed comprising a plurality of one or more different donor (D) repeating units and a plurality of at least one acceptor (A) repeating unit, wherein at least one of the D units has a solubilizing substituent and comprises a 3,4-alkylenedioxythiophene substituted on the alkylene bridge, wherein statistically a portion of the A repeating units are separated from another of the A units by only one of the D units, wherein a plurality of the A unit are adjacent to the D units having the solubilizing substituents, and wherein the copolymer in the neutral state is black or colored and highly transmissive in the oxidized state.