NOVELTY - A new polymerizable monomer has a polymerizable functional group substituted by an aromatic compound.    USE - New polymerizable monomer is used for producing high-molecular compound for use as luminescent material, phosphorescence-emitting material, or fluorescent-light-emitting material of organic devices e.g. organic electroluminescent elements (all claimed) used in planar light-emitting components e.g. flat panel displays of wall-mounted televisions, backlights of printers, copiers, LCDs, and measuring instruments, display boards, and marker lamps. Can also be used for organic thin-film transistors, organic solar cells, and image sensors.    ADVANTAGE - The new polymerizable monomer provides high-molecular compounds which can economically form films on large substrates. The high-molecular compound provides organic electroluminescent elements having excellent luminous efficiency and durability, especially during high-temperature drive.    DETAILED DESCRIPTION - A new polymerizable monomer has a polymerizable functional group substituted by an aromatic compound of formula: Ara-Ar1-(Ar2)m-(Ar3)n-(Ar4)o-Arb.    Ara,Arb=monovalent group consisting of benzene ring, naphthalene ring, 9,9-dialkylfluorene ring, 9,9-diphenylfluorene ring, chrysene ring, fluoranthene ring, benzo(b)fluoranthene ring, phenanthrene ring, benzophenanthrene ring, dibenzophenanthrene ring, benzochrysene ring, picene ring, dibenzofuran ring, or dibenzothiophene ring (all optionally substituted);    Ar1-Ar4=coupling group consisting of benzene ring, naphthalene ring, 9,9-dialkylfluorene ring, 9,9-diphenylfluorene ring, chrysene ring, fluoranthene ring, benzo(b)fluoranthene ring, phenanthrene ring, benzophenanthrene ring, dibenzophenanthrene ring, benzochrysene ring, picene ring, dibenzofuran ring, or dibenzothiophene ring (all optionally substituted), with no substituent being aryl or heteroaryl;and    m,n,o=0 or 1.    INDEPENDENT CLAIMS are included for the following:    (1) high-molecular compound obtained by polymerizing a raw material containing the polymerizable monomer; and    (2) organic electroluminescent element consisting of organic compound layer(s) containing material consisting of the high-molecular compound, clamped between an anode and a cathode.