POLY(ARYLAMINES) AND FILMS THEREOF

PURPOSE: Films of the poly(arylamines) can be prepared using relatively small amounts of polymer while still maintaining the desirable properties of transporting positive charges, which are useful as charge transport layers in light-emitting diodes. CONSTITUTION: A poly(arylamine) composition comprises one or more compounds of formula (I): wherein R is independently in each occurrence a C1-24 hydrocarbyl, C1-24 hydrocarboxy, C1-24 hydrocarbylthiooxy, or C1-24 hydrocarbylcarboxyl; Ar1 and Ar2 are independently in each occurrence a C6-18 aryl moiety optionally substituted with a C1-12 hydrocarbyl, C1-12 hydrocarbyloxy, C1-12 hydrocarbylthiooxy, or C1-12 hydrocarbylcarboxyl; A is independently in each occurrence hydrogen or a halogen; x is independently in each occurrence a positive number from 0 to 1; n is independently in each occurrence a whole number of from 0 to 4; and m is a number of from about 5 to about 1000.