A novel polyfluorene-based ionomer, an anion exchange membrane, a method for preparing the polyfluorene-based ionomer, and a method for fabricating the anion exchange membrane are proposed. The polyfluorene-based ionomer contains no aryl ether bonds in the polymer backbone and includes piperidinium groups incorporated into the repeating units. The anion exchange membrane is fabricated from the polyfluorene-based ionomer. The anion exchange membrane has good thermal and chemical stability, excellent mechanical properties, and high ion conductivity. Due to these advantages, the anion exchange membrane can be applied as a membrane for an alkaline fuel cell and to a binder for an alkaline fuel cell or water electrolysis.

Disclosed are an electroluminescent polymer based on phenanthroimidazole units, a preparation method therefor, and the use thereof. The electroluminescent polymer based on phenanthroimidazole units has a structure as shown in the formula (I), and the side chain thereof contains phenanthroimidazole units. The electroluminescent polymer (1) has the properties of hybridized local and charge-transfer states, which can improve the utilization of excitons and the electroluminescence properties of devices by means of reverse inter-system crossing to effectively utilize triplet state excitons; (2) the phenanthroimidazole unit has a large degree of conjugation and a strong rigidity, which can not only improve the thermal stability of a material, but can also increase the radiation transition rate of the material and improve the light-emitting efficiency thereof; and (3) the raw materials of the polymer are cheap, the synthetic route is simple, and purification is convenient, which is beneficial for industrial scaled-up production thereof. The polymer has a good solubility, and can be used to prepare large-area flexible display devices by means of a solution processing technology. The polymer has great development potential and prospects in the field of organic electronic display.

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Embodiments in accordance with the present invention encompass compositions encompassing a latent organo-ruthenium catalyst, an organo-ruthenium compound and a pyridine compound along with one or more monomers which undergo ring open metathesis polymerization (ROMP) when said composition is heated to a temperature from 80° C. to 150° C. or higher to form a substantially transparent film. Alternatively the compositions of this invention also undergo polymerization when subjected to suitable radiation. The monomers employed therein have a range of refractive index from 1.4 to 1.6 and thus these compositions can be tailored to form transparent films of varied refractive indices. The compositions of this invention further comprises inorganic nanoparticles which form transparent films and further increases the refractive indices of the compositions. Accordingly, compositions of this invention are useful in various opto-electronic applications, including as coatings, encapsulants, fillers, leveling agents, among others.

Disclosed herein are ladder polymers comprising fused aromatic and non-aromatic rings. Also disclosed are the manufacture and use of these ladder polymers, e.g., in separation membranes, such as membrane for gas separation.

A material comprising an electron-accepting unit of formula (I): wherein Ar1 and Ar2 independently is a 5- or 6-membered aromatic or heteroaromatic ring or is absent; and each X is independently H or a substituent with the proviso that at least one X is an electron-withdrawing group and wherein X groups bound to adjacent carbon atoms may be linked to form an electron-withdrawing group. The material further comprises an electron-donating unit D comprising a fused or unfused furan or thiophene. The material may be a polymer comprising repeat units of formula (I). The material may be a non-polymeric compound. An organic photodetector may contain a bulk heterojunction layer containing an electron acceptor or an electron donor wherein at least one of the electron acceptor and electron donor contains a unit of formula (I).

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Water-soluble fluorescent polymeric dyes and polymeric tandem dyes are provided. The polymeric dyes include a water solvated light harvesting multi-chromophore having a conjugated segment of aryl and/or heteroaryl co-monomers. The molar ratio of the co-monomers can be adjusted to provide beneficial technical properties, such as increased water solubility and improved absorption and emission spectra. For instance, the conjugated segment can have a first co-monomer substituted with a water-soluble group (WSG) and a second co-monomer, wherein the first co-monomer is in an amount that is equal or greater than the amount of the second co-monomer, multi-chromophore. The polymeric tandem dyes further include a signaling chromophore covalently linked to the multi-chromophore in energy-receiving proximity therewith. Also provided are aggregation-resistant labeled specific binding members that include the subject water-soluble polymeric dyes. Methods of evaluating a sample for the presence of a target analyte and methods of labeling a target molecule in which the subject polymeric dyes find use are also provided. Systems and kits for practicing the subject methods are also provided.

The invention relates to novel compounds containing one or more units derived from 2,6-disubstituted-[1,5]naphthyridine or 1,6-disubstituted-1H-[1,5]naphthyridine-2-one, to methods for their preparation and educts or intermediates used therein, to mixtures and formulations containing them, to the use of the compounds, mixtures and formulations as organic semiconductors in organic electronic (OE) devices, especially in organic photovoltaic (OPV) devices and organic photodetectors (OPD), and to OE, OPV and OPD devices comprising these compounds, mixtures or formulations.

A polymer comprising: ##STR00001## In this embodiment, R′ and R″, can be independently selected from the group consisting of: a halogen, a substituted alkyl, an unsubstituted alkyl, a substituted aryl, and an unsubstituted aryl. Additionally, X.sub.1 and X.sub.2 can be independently selected from the group consisting of: O, S, Se, N—R, and Si—R—R. Lastly, Ar and Ar′ can be identical or different and can be independently selected from the group consisting of: a substituted aryl, and an unsubstituted aryl.

Methods of forming a porphene polymeric material are provided. The resulting material can be a porphene or a metalloporphene polymeric material. The structure of the polymer can be selected based on a material provided in the monomer material. Methods of using the polymeric material are also provided.

A polymer comprising an electron-donating repeat unit of formula (I) and an electron-accepting repeat unit: -(A).sub.n- (I) wherein A in each occurrence is independently a group of formula (II): Y in each occurrence is independently O or S. Z is O, S or NR.sup.3 wherein R.sup.3 is H or a substituent. R.sup.1 in each occurrence is independently H or a substituent. R.sup.2 in each occurrence is independently a substituent, n is at least 2. The polymer may be used as an electron-donating polymer in combination with an electron-accepting material in a bulk heterojunction layer of an organic photodetector.

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