Foam compositions are provided. The compositions are prepared from multi-functional acetoacetate esters and multi-functional amines or acrylates. The foam compositions can include one or more additives. The foam compositions can be used for home and commercial insulation, air sealing, sound proofing, structural improvement, and exterior roofing, among other applications. The foam compositions provide advantages of being isocyanate free and offer reduced exposure to isocyanate.

This hole collection layer composition for an organic photoelectric conversion elements comprises: a charge-transporting substance formed of a polyaniline derivative represented by formula (1); fluorochemical surfactant; metal oxide nanoparticles; and a solvent. The hole collection layer composition provides a thin film having excellent adhesiveness to an active layer of an organic photoelectric conversion element. ##STR00001## {R.sup.1-R.sup.6 are each independently a hydrogen atom, a halogen atom, a nitro group, a cyano group, a sulfonic acid group, a C.sub.1-C.sub.20 alkoxy group, a C.sub.1-C.sub.20 thioalkoxy group, a C.sub.1-C.sub.20 alkyl group, etc. Meanwhile, one of R.sup.1-R.sup.4 is a sulfonic acid group and at least one of the remaining R.sup.1-R.sup.4 is a C.sub.1-C.sub.20 alkoxy group, a C.sub.1-C.sub.20 thioalkoxy group, a C.sub.1-C.sub.20 alkyl group, etc., and m and n are numbers that satisfy 0≤m≤1, 0≤n≤1, and m+n=1.}

The present specification relates to a polymer comprising a unit represented by Chemical Formula 1, a monomer represented by Chemical Formula 2, a coating composition comprising the same, an organic light emitting device formed using the same, and a method for manufacturing an organic light emitting device using the same:

##STR00001##

wherein the variables are described herein.

A light-emitting composition comprising: a light-emitting group and a polymer comprising: a repeat unit of formula Ar.sup.1 wherein Ar.sup.1 is an arylene repeat unit which is unsubstituted or substituted with one or more substituents; and a repeat unit of formula (I): (I) wherein Ar.sup.2 and Ar.sup.3 each independently represent a C.sub.6-20 arylene group or a 5-20 membered heteroarylene group which is unsubstituted or substituted with one or more substituents and CB represents a conjugation-breaking group which does not provide a conjugation path between Ar.sup.2 and Ar.sup.3; wherein the polymer has a solubility in water or a C.sub.1-8 alcohol at 20° C. of at least 0.1 mg/ml. The composition may be a light-emitting polymer in which the polymer contains the light-emitting group. The light-emitting composition may be part of a particle containing the polymer and a matrix material, e.g. silica. The light-emitting composition may be used in an assay for detection of a target analyte.

A light-emitting composition comprising: a light-emitting group and a polymer comprising: a repeat unit of formula Ar.sup.1 wherein Ar.sup.1 is an arylene repeat unit which is unsubstituted or substituted with one or more substituents; and a repeat unit of formula (I): (I) wherein Ar.sup.2 and Ar.sup.3 each independently represent a C.sub.6-20 arylene group or a 5-20 membered heteroarylene group which is unsubstituted or substituted with one or more substituents and CB represents a conjugation-breaking group which does not provide a conjugation path between Ar.sup.2 and Ar.sup.3; wherein the polymer has a solubility in water or a C.sub.1-8 alcohol at 20° C. of at least 0.1 mg/ml. The composition may be a light-emitting polymer in which the polymer contains the light-emitting group. The light-emitting composition may be part of a particle containing the polymer and a matrix material, e.g. silica. The light-emitting composition may be used in an assay for detection of a target analyte.

A polymer, a quantum dot composition, and a light-emitting device employing the same are provided. The polymer includes a first repeat unit that has a structure represented by Formula (I):

##STR00001##

wherein the definitions of R.sup.1, R.sup.2, A.sup.1, A.sup.2, A.sup.3, and Z.sup.1 and n are as defined in the specification.

The present disclosure provides a non-fullerene acceptor polymer, which includes a structure represented by formula (I). Formula (I) is defined as in the specification. The non-fullerene acceptor polymer has an electron donating unit and an electron attracting end group. The non-fullerene acceptor polymer uses phenyl or its derivatives as the linker to form the polymer.

Free-standing non-fouling polymers and polymeric compositions, monomers and macromonomers for making the polymers and polymeric compositions, objects made from the polymers and polymeric compositions, and methods for making and using the polymers and polymeric compositions.

Free-standing non-fouling polymers and polymeric compositions, monomers and macromonomers for making the polymers and polymeric compositions, objects made from the polymers and polymeric compositions, and methods for making and using the polymers and polymeric compositions.

A polymer and a light-emitting device employing the same are provided. The polymer includes a first repeat unit with a structure represented by Formula (I):

##STR00001##

wherein the definitions of R.sup.1, R.sup.2, A.sup.1, A.sup.2, A.sup.3, and Z.sup.1 and n are as defined in the specification. At least one of A.sup.1, A.sup.2, and A.sup.3 is not hydrogen.