Patent ID: 7579091

Claim:
A white electroluminescent polymeric material, comprising a single white electroluminescent polymeric material selected from a group consisting of: type (I): main chain type single white electroluminescent polymeric material, wherein: R 1 is alkyl or aryl, Ar1 is a naphthalimide derivative basic unit having one or more structures as listed below: wherein, Ar2 is an electron transport basic unit, a hole transport basic unit or a luminescence basic unit; x, y, and z each represents the content of one basic unit, satisfying 0.6500<x<0.9999, 0.0001≦v≦0.0050, 0.0000<z<0.3000, x+y+z=1, and n=1-300, wherein, the chain lengths of the alkyl and the alkoxy are 1-18; the aryl is selected from a group consisting of phenyl, naphthyl, fluorenyl, triphenylamino, oxadizolyl, and phenyl or naphthyl substituted by alkyl or alkoxy; R 3 and R 4 independently represent an alkyl having a chain length of 1-18 or an aryl, wherein the aryl is selected from a group consisting of phenyl, naphthyl, and phenyl or naphthyl substituted by alkyl or alkoxy; Ar2 has one or more structural units selected from the following units: wherein R 5 is selected from a group consisting of alkyl, phenyl, naphthyl, and phenyl or naphthyl substituted by alkyl or alkoxy, m=0-20; wherein, the chain lengths of the alkyl and the alkoxy are 1-18; type (II): pendant chain type single white electroluminescent polymeric material wherein: R 2 is selected from a group consisting of alkyl, alkoxy, phenyl, and phenyl substituted by alkyl or alkoxy; Ar1 is a naphthalimide derivative basic unit; the basic structure of Ar2 is the same as the Ar2 of the main chain type single white luminescent polymeric material; each basic unit content—x, y and z satisfy 0<x≦1, 0<y<1, 0≦z<1, x+y+z=1, m=0-20, n=1-300; wherein the chain lengths of the alkyl and the alkoxy are 1-18; Ar1 has one or more structures as listed below: wherein R 6 is alkyl, phenyl, naphthyl, a phenyl or naphthyl group substituted by alkyl or alkoxy, wherein the chain lengths of the alkyl and the alkoxy are 1-18; and type (III): Terminal group type single white electroluminescent polymeric material wherein: Ar1 is a naphthalimide derivative basic unit; the structure of Ar2 is the same as the Ar2 of the main chain type single white luminescent polymeric material; x and y are basic unit contents and satisfy 0<x≦1, 0<y<1, x+y=1; n=1-300; Ar1 has one or more structures as listed below: wherein R 7 is alkyl, phenyl, naphthyl, or a phenyl or naphthyl group substituted by alkyl or alkoxy; wherein the chain length of alkyl and alkoxy is 1-18.