TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The benzo(k)fluoranthene-containing structural unit (I) is benzo(k)fluoranthene-containing structural unit (III).    TECHNOLOGY FOCUS - POLYMERS - Preparation (Claimed): The high-molecular compound is obtained by polymerizing halogen-containing compound of formula (X) and halogen-containing compound of formula (XI).Z3,Z4=substituent (a) or substituent (b).Preferred Composition: The high-molecular compound has benzo(k)fluoranthene-containing structural unit (I), nitrogen-containing structural unit (II), and fluorene-containing structural unit of formula (IV) and/or bivalent group-containing structural unit of formula: -(Ar7)- (V). The high-molecular compound contains benzo(k)fluoranthene-containing structural unit (I) (0.1-20 mol%) and nitrogen-containing structural unit (II) (0.1-30 mol%) with respect to total content of benzo(k)fluoranthene-containing structural unit (I), nitrogen-containing structural unit (II), and benzo(k)fluoranthene-containing structural unit (I) of formula (III).R14,R15=alkyl, aryl, or monovalent heteroaryl (all optionally substituted);andAr7=arylene or bivalent heteroaryl (both optionally substituted) or bivalent group formed by connecting 2 or more of arylene and bivalent heteroaryl. Preferred Definitions:    a=1;    b=0;    Ar2=phenylene or biphenyl-4,4'-diyl (both optionally substituted);and    Ar5,Ar6=optionally substituted phenylene.    (i) Any one of R3, R4, R8 and R9, is aryl or monovalent heteroaryl (both optionally substituted); and (ii) One of R3 and R4, and one of R8 or R9 is aryl or monovalent heteroaryl (both optionally substituted).    EXAMPLE - 8,11-Bis-(4-bromo-phenyl)-3-naphthalen-2-yl-benzo(k)fluoranthene (in g) (0.138), N,N'-bis-(4-bromo-phenyl)-4"-tert-butyl-N-(4-tert-butyl-2,6-dimethyl-phenyl)-2",6"-dimethyl-(1,1';3',1")terphenyl-4,4'-diamine (0.163), 2-(9,9-dioctyl-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-fluoren-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (0.36), 2-(9,9-bis(3-hexyl-5-methylphenyl)-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-fluoren-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1.104), 2,7-dibromo-9,9-bis-(3-hexyl-phenyl)-9H-fluorene (1.031), dichlorobis(triphenylphosphine)palladium (1.4) and toluene (50 mL) were mixed and heated at 105 degrees C. Aqueous solution of tetramethylammonium hydroxide (6.6 mL) was added to mixture and refluxed. Phenyl boric acid (24.4 mg) and toluene (5 mL) were added to mixture and refluxed for 18.5 hours. Aqueous solution of sodium diethyldithiocarbamate was added and mixed at 80 degrees C for 2 hours. The mixture was washed, cooled and filtered to obtain high-molecular compound having benzo(k)fluoranthene-containing structural unit of formula (XXX), nitrogen-containing structural unit of formula (XXXI), fluorene-containing structural unit of formula (XXXII), and diphenyl fluorene-containing structural units of formula (XXXIII) and (XXXIV).