A graft copolymer can include, in its backbone, at least one segment having repeating units obtainable by ring-opening metathesis polymerization (ROMP) of an optionally substituted cycloalkene, and at least one segment comprising repeating units obtainable by atom transfer radical polymerization (ATRP) of a (meth)acrylate. The corresponding graft copolymer is highly suitable for use as an oil additive in internal combustion engines, in particular, in combustion engines which are operated for longer periods of time at substantially constant operating temperatures.

A microfluidic movement control method utilizing light, a device, and a microtubule actuator (2). The microtubule actuator (2) is prepared by utilizing a light-induced deformed smart polymer material. The smart polymer material forms, by an exciting beam, asymmetrical deformation, and is induced to produce a capillary action to drive a microfluid movement. The embodiment can drive microfluids having various polarities and compositions, and can drive creep of the microfluid, and can even drive the microfluid to generate a 3D movement trail. The embodiment has found a wide range of potential applications in controllable microfluidic transport, micro-reaction systems, micro-mechanic systems, IC laboratories, and others.

Embodiments in accordance with the present invention encompass compositions encompassing a latent catalyst and a compound capable of generating a Bronsted along with one or more monomers which undergo ring open metathesis polymerization (ROMP) when said composition is exposed to a suitable radiation to form a substantially transparent film. 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 composition of this invention also feature low dielectric constant (low k in the range of from about 2.2 to 3). Accordingly, compositions of this invention are useful in various opto-electronic applications, including as coatings, encapsulants, fillers, leveling agents, among others.

An exemplary embodiment of the present disclosure provides a method of designing a polymer. The method can include: providing a set of polymer data; generating a set of polymer structures; providing one or more target properties for the polymer, predicting properties of each polymer structure of the set of polymer structures, and design considerations for the set of polymer structures; and selecting one or more polymer structures from the set of polymer structures, based at least in part, on the predicted properties of the polymer structures. The polymer data can include a set of monomer structures.

The present invention relates to a method for producing a composite molded article having a flexural modulus at 150 C. of 25% or more of a flexural modulus at 23 C., including the steps of (1) placing glass fibers in a mold; (2) impregnating glass fibers with a polymerizable composition containing a cycloolefin monomer, a metathesis polymerization catalyst, a radical generator, and a compound represented by the general formula (I); (3) subjecting the above polymerizable composition with which the glass fibers are impregnated to a bulk polymerization to provide a composite molded article; and (4) demolding the composite molded article; and a composite molded article obtained by the above method. According to the method of the present invention, a composite molded article containing glass fibers, the composite molded article having excellent mechanical strength can be produced.

Provided is a barrier film including a resin film and a barrier layer provided on the resin film. Also provided is an electroconductive film including a resin film and an electroconductive layer provided on the resin film. The resin film is formed of a resin containing an alicyclic structure-containing polymer having crystallizability. An absolute value of a thermal size change ratio when the resin film is heated at 150? C. for 1 hour is 1% or less in any in-plane direction of the resin film.

The present invention relates to compositions comprising at least one cyclic olefin, at least one metal carbene olefin metathesis catalyst, and dicumyl peroxide. The present invention relates to a method of making ROMP polymers and articles of manufacture with improved resistance to hydrocarbon fluids. Particularly the invention relates to ROMP polymer compositions with improved resistance to hydrocarbon fluids. Such ROMP polymers and ROMP polymer compositions can be used in a variety of materials and composite applications.

A method is provided of forming an olefin from a first olefin and a second olefin in a metathesis reaction, comprising reacting the first olefin with the second olefin in the presence of a compound that catalyzes the metathesis reaction such that the molar ratio of the compound to the first or the second olefin is from 1:500 or less, and the conversion of the first or the second olefin to the olefin is at least 30%.

Dicyclopentadiene (DCPD) derivatives of following general formula (I); their preparation and use thereof, especially as monomers in polymerization reactions, such as olefin polymerization or ring-opening metathesis polymerization (ROMP).

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The present invention relates to sizing compositions, to glass fibers at least partially coated with such sizing compositions, to a variety of fiber glass products at least partially coated with such sizing compositions, and to composites formed from cycloolefins and reinforced with glass fibers at least partially coated with sizing compositions of the present invention. In one non-limiting embodiment, a sizing composition for glass fibers comprises a film-former comprising a polymer, wherein the repeating unit of the polymer comprises at least four carbon atoms and at least one carbon-carbon double bond, and a silane.