Polymer networks

摘要: The invention provides a photopolymerisable or photocross linkable reactive mesogen for forming a charge transporting or light emitting polymer network, the mesogen having an asymmetric structure (II): BSAM-(ASB)(II) wherein: A and A are chromophores; S and S are spacers; B and B are endgroups which are susceptible to photopo lymerisation or photocrosslinking; M is a non-chromophoric aliphatic, alicyclic or aromatic moiety; and n is an integer from 1 to 3; wherein, when the value of n is greater than 1, each of the groups A, S and B may be the same or different. Preferably, M is of the formula YZ, wherein Y is an aliphatic, alicyclic, aromatic or heterocyclic moiety, Z is an aliphatic linking group and m is an integer from 2 to 4, and wherein each of the Z groups may be the same or different. The invention also provides a material for forming a light emitting or charge transporting polymer network comprising the …