A composition contains cyclic low molecular compounds having a constitutional unit represented by the formula (X), and a polymer compound having the same constitutional unit represented by the formula (X). The total value of area percentages determined by liquid chromatography of the cyclic low molecular compounds is 0.1 or more and 1.5 or less when the total value of area percentages determined by liquid chromatography of the cyclic low molecular compounds and the polymer compound is taken as 100,

##STR00001##

a.sup.X1 and a.sup.X2 each independently represent an integer of 0 or more. Ar.sup.X1 and Ar.sup.X3 each independently represent an arylene group, a divalent hetero ring group or the like; Ar.sup.X2 and Ar.sup.X4 each independently represent an arylene group, a divalent hetero ring group and the like; and R.sup.X1 to R.sup.X5 each independently represent a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group and the like.

Compounds of the formula D-S.sup.1-A-S.sup.2B.sup.1 wherein A comprises a 2,7-disubstituted 9,9-fluoroalkyl fluorene diradical of the formula

##STR00001## wherein S.sup.1, S.sup.2, D and B.sup.1 have meanings given in the description that are useful as charge transport and emissive materials for the fabrication of electronic devices such as diodes, transistors, and photovoltaic devices.

A method is provided for producing a compound, including a step of mixing a compound (1) having one or two leaving groups, a compound (2) having one or two boron atom-containing leaving groups, an organic base (P), and at least one selected from a phase transfer catalyst and an organic base (Q) larger in the number of carbon atoms than the above-mentioned organic base in the presence of a transition metal catalyst. The method thereby performs a coupling reaction between the above-mentioned compound (1) and the above-mentioned compound (2).

There is provided a copolymer having Formula I ##STR00001##
In Formula I: A is a monomeric unit containing at least one triarylamine group; B is a monomeric unit having at least three points of attachment in the copolymer; C is an aromatic monomeric unit or a deuterated analog thereof; E is the same or different at each occurrence and can be H, D, halide, alkyl, silyl, germyl, aryl, arylamino, siloxane, a crosslinkable group, deuterated alkyl, deuterated silyl, deuterated germyl, deuterated aryl, deuterated arylamino, deuterated siloxane, or a deuterated crosslinkable group; a, b, and c are the same or different and are mole fractions, such that a+b+c=1, and a and b are non-zero.

Provided are a conjugated polymer containing ethynyl crosslinking group, mixture, formulation, organic electronic device containing the same and application thereof. The conjugated polymer material has a conjugated main chain structure and an ethynyl crosslinking group as a functional side chain. The conjugated polymer material produces an insoluble and unmeltable crosslinked interpenetrating network polymer film under heating, has excellent solvent-resistance, and is suitable for manufacturing a complex multi-layer organic electronic device. The conjugated polymer can be applied in optoelectronic devices such as an organic field effect transistor, an organic light emitting diode (OLED), a polymer solar cell, a perovskite solar cell, etc, and improves device performance.

A multi-acid monomer disclosed herein has the formula ##STR00001##
wherein R is one or more units of a non-SO.sub.2F or non-SO.sub.2Cl portion of a polymer precursor in sulfonyl fluoride or sulfonyl chloride form, X is a non-sulfonyl halide group of a multi-sulfonyl halide compound having a minimum of two acid giving groups, and Y is remaining sulfonyl halide groups of the multi-sulfonyl halide compound.

A quinone-containing poly(arylene) includes repeating units of formula (I), (II), (III), (IV), (V), or (VI) as defined herein. The quinone-containing poly(arylene) can be useful in composites, electrode assemblies, electrochemical cells, gas separation systems, energy storage devices, and electrochromic devices.

A recording medium of an aspect of the present disclosure includes a recording layer containing a polymer P. The polymer P contains a group G having nonlinear light absorption characteristics and has a glass transition temperature of higher than or equal to 200 C. A method for recording information of an aspect of the present disclosure includes preparing a light source emitting light having a wavelength of longer than or equal to 390 nm and shorter than or equal to 420 nm and focusing the light from the light source and applying the light to the recording layer of the recording medium.

Provided are a fluorine-atom-containing polymer that is a condensation polymer of a fluorine-atom-containing triphenylamine derivative giving a repeating unit represented by formula (1) and a fluorine derivative giving a repeating unit represented by formula (2) and the use of this fluorine-atom-containing polymer.

##STR00001##

(In the formulas, A represents a fluoroalkanediyl group, at least one of R.sup.1 and R.sup.2 represents any of an alkoxyl group, an alkenyloxy group, an alkynyloxy group, an aryloxy group, a heteroaryloxy group, and an alkyl group including at least one ether structure, R.sup.3-R.sup.6 represent prescribed substituents, m.sup.1 and m.sup.2 each independently represent an integer of 0-4, n.sup.1 and n.sup.2 represent an integer of 0-3.)

Provided is a polymer comprising: a first unit represented by Chemical Formula 1; a second unit represented by Chemical Formula 1 and different from the first unit; a third unit represented by Chemical Formula 2; and an end group represented by Chemical Formula 3, and an organic light emitting device using the same,

##STR00001## wherein all the variables are described herein.