Patent ID: 8466460
Filing Date: 2013-06-18
Classification: C08G,H01L,Y02E

Abstract:
1. A polymer, comprising a repeating unit A and optionally a repeating unit B, corresponding to formulae wherein D=O, C(CN) E=CR W, at each occurrence, is independently a monocyclic or polycylic moiety optionally substituted with 1-4 R R R Y, at each occurrence, is independently a divalent C m, at each occurrence, is independently 0, 1 or 2; R L, at each occurrence, is independently —O—, —Y—O—Y—, —S—, —S(O)—, —Y—S—Y—, —C(O)—, —NR R Ar R L′, at each occurrence, is independently —O—, —Y—O—Y—, —S—, —S(O)—, —Y—S—Y—, —C(O)', —NR Ar R Y, at each occurrence, is independently a divalent C R L, at each occurrence, is independently —O—, —Y—O—Y—, —S—, —S(O)—, —Y—S—Y—, —C(O)—, —NR R R Y, at each occurrence, is independently a divalent C c is from 1 to 6.