| US 7,579,091 B2 | ||
| White electroluminescent polymeric material and preparation thereof | ||
| Lixiang Wang, Changchun (China); Guoli Tu, Changchun (China); Jianxin Cao, Changchun (China); Jun Liu, Changchun (China); Dongge Ma, Changchun (China); Xia Bin Jing, Changchun (China); and Fosong Wang, Changchun (China) | ||
| Assigned to Changchun Institute of Applied Chemistry Chinese Academy of Science, Changchun (China) | ||
| Filed on Jan. 26, 2005, as Appl. No. 11/42,193. | ||
| Claims priority of application No. 2004 1 0010770 (CN), filed on Mar. 29, 2004. | ||
| Prior Publication US 2005/0214568 A1, Sep. 29, 2005 | ||
| Int. Cl. B32B 19/00 (2006.01); C09K 11/06 (2006.01) | ||
| U.S. Cl. 428—690 [428/917; 528/480; 528/424; 528/423; 528/422; 528/373] | 1 Claim |
| 1. 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: R1 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; R3 and R4 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 R5 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: R2 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 R6 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 R7 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.
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