Embodiments in accordance with the present invention encompass a two component composition containing in one component a latent organo-ruthenium carbide catalyst, and in another component a photoactive acid generator or a thermally active acid generator, and either of the components containing a mixture of photoactive compound along with one or more monomers which undergo ring open metathesis polymerization (ROMP) when said components are mixed together and exposed to a suitable radiation (or heat) to form a three-dimensional (3D) object. The three-dimensional objects so formed exhibits improved mechanical properties, particularly, high heat distortion temperature, impact strength, elongation to break, among others. Accordingly, compositions of this invention are useful as 3D inkjet materials for forming high impact strength objects of various sizes with microscale features lower than 100 microns, among various other uses.

Provided is a phase difference film formed of a resin containing a polymer having crystallizability, and having an NZ factor of less than 1. A production method of the phase different film includes: bonding a second film to one or both surfaces of a first film formed of a resin containing the polymer having crystallizability and having a glass transition temperature Tg (° C.) and a melting point Tm (° C.), to obtain a third film, the second film having a shrinkage percentage in at least one direction at (Tg+30)° C. of 5% or more and 50% or less; heating the third film to Tg° C. or higher and (Tg+3)° C. or lower to obtain a fourth film; and heating the fourth film to (Tg+50)° C. or higher and (Tm−40)° C. or lower.

Disclosed are low-temperature thermally and/or ultraviolet light curable polymers that can be used as active and/or passive organic materials in various electronic, optical, and optoelectronic devices. In some embodiments, the device can include an organic semiconductor layer and a dielectric layer prepared from such low-temperature thermally and/or ultraviolet light curable polymers. In some embodiments, the device can include a passivation layer prepared from the low-temperature thermally and/or ultraviolet light curable polymers described herein. In certain embodiments, a polymer of the disclosure has a repeating unit having the structure (I) in which Q.sup.1-Q.sup.2 and Q.sup.3-Q.sup.4 are each independently —C(H)═C(H)— or (II) in which each n is independently selected from 1, 2, 3 and 4, and the polymer includes at least one repeating unit of Formula (I) wherein Q.sup.1-Q.sup.2 and Q.sup.3-Q.sup.4 is (II).

Nitrogen heterocyclic carbine ligands and ruthenium catalysts thereof, a preparation method therefor and an application thereof are provided. The structures of the nitrogen heterocyclic carbine ligands are represented by formulas Ia and Ib, respectively, and the corresponding ruthenium catalyst structures are represented by IIa and IIb, respectively. After simultaneously introducing large-steric hindrance and electron-rich groups into the described nitrogen heterocyclic carbine ligand structures, the catalytic activity, stability and application range of the ruthenium complex catalysts thereof are significantly improved.

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Disclosed herein, inter alia, are oxidized polyethylene compounds and compositions and methods of making the same.

The present disclosure provides compositions and methods for metathesizing a first alkenyl or alkynyl group with a second alkenyl or alkynyl group, the composition comprising a ruthenium metathesis catalyst and a photo-redox catalyst that is activated by infrared light.

Disclosed are methods, compositions, reagents, systems, and kits to prepare and utilize branched multi-functional macromonomers, which contain a ring-opening metathesis polymerizable norbornene group, one or more reactive sites capable of undergoing click chemistry, and a terminal acyl group capable of undergoing a coupling reaction; branched multi-cargo macromonomers; and the corresponding polymers are disclosed herein. Various embodiments show that the macromonomers and polymers disclosed herein display unprecedented control of cargo loading of agents. These materials have the potential to be utilized for the treatment of diseases and conditions such as cancer and hypertension.

Chemically inert, mechanically tough, cationic metallo-polyelectrolytes designed as durable anion-exchange membranes (AEMs) via ring-opening metathesis polymerization (ROMP) of cobaltocenium-containing cyclooctene with triazole as the only linker group, followed by backbone hydrogenation to provide a new class of AEMs with a polyethylene-like framework and alkaline-stable cobaltocenium cation for ion transport, which exhibit excellent thermal, chemical and mechanical stability, as well as high ion conductivity.

Disclosed herein are embodiments of a nanohoop-functionalized polymer and methods of making and using the same. In particular embodiments, polymer comprises one or more nanohoops that extend from the polymer backbone. Also disclosed herein are polymerizable nanohoop monomer embodiments that can be used to make the polymer embodiments disclosed herein.

Provided is a hydrogenated ring-opened polymer having excellent ductility. The hydrogenated ring-opened polymer includes 90 mass % or more of norbornene-derived structural units. The proportion of meso diads of cis-structural units (I) of formula (I), shown below, included among the norbornene-derived structural units is not less than 0% and not more than 30% or is not less than 70% and not more than 100%. Trans-structural units (II) of formula (II), shown below, constitute a proportion of not less than 0.5% and not more than 20% among the total of the cis-structural units (I) of formula (I) and the trans-structural units (II) of formula (II).

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