Patent ID: 8680231
Filing Date: 2014-03-25
Classification: C08G,H01L,Y02E

Abstract:
1. An alternating or statistical conjugated copolymer comprising: at least one benzotriazole unit B of formula (Ia) or (Ib): wherein R is selected from optionally substituted alkyl, aryl, acyl or thioacyl groups; and at least one conjugated structural unit A, wherein each unit B is connected to at least one unit A in any of the positions 4, 5, 6 or 7, and wherein the conjugated copolymer is selected from the group consisting of: a copolymer of structure (1): where n is a number from 5 to 1,000; a copolymer of structure (2): wherein x and y are two integers different from 0 such that the sum (x+y) is a number from 5-1,000; a copolymer of formula (3): wherein x and y are two integers different from 0 such that the sum (x+y) is a number from 5-1,000; a copolymer of structure (4): wherein x and y are two integers different from 0 such that the sum (x+y) is a number from 5-1,000; a copolymer of structure (5): wherein x and y are two integers different from 0 such that the sum (x+y) is a number from 5-1,000; a copolymer of structure (6): wherein x and y are two integers different from 0 such that the sum (x+y) is a number from 5-1,000; and a copolymer of structure (7): wherein n is an integer of 5-1,000.