Patent ID: 8138303
Filing Date: 2012-03-20
Classification: C08G,Y10T

Abstract:
1. A polymer comprising a repeating unit(s) of the formula wherein A is a 5-, 6-, or 7-membered heteroaromatic ring, containing at least one heteroatom selected from nitrogen, oxygen and sulfur, when A is 5-membered ring, A contains not more than 2 heteroatom, R R R at least one of R R Sp is a spacer unit, PG′ is a group derived from a polymerisable group selecting from —C(R  wherein s is an integer from 1 to 6, m1 is an integer from 1 to 6, R R R R PG′ is a group derived from a polymerisable group  wherein AHG is an aromatic, or heteroaromatic residue R R x1 is 0, or 1, and x is 0, or an integer of 1 to 4.