This invention relates to a process for the preparation of a polar-functionalized resin composition comprising the steps of (A) contacting a polymer backbone with a reactive moiety to produce a polar-functionalized resin composition wherein the polymer backbone is derived from a feed comprising less than or equal to about 35 wt % components derived from piperylene; less than or equal to about 10 wt % components derived from amylene; less than or equal to about 10 wt % components derived from isoprene; less than or equal to about 55 wt % unreactive paraffins; and C9 homopolymer or copolymer resins, in the presence of a Friedel-Crafts or Lewis acid catalyst; and (B) recovering a polar-functionalized resin composition.

The present invention provides a photosensitive resin composition which has a light-blocking property, and at the same time, a high sensitivity, and has excellent half-tone characteristics. The present invention provides a photosensitive resin composition including an (A) alkali-soluble resin, a (B) radically polymerizable compound, a (C) photo initiator, and a (D) colorant, where the (A) alkali-soluble resin contains a polyimide, a polyimide precursor, a polybenzoxazole precursor, and/or a copolymer thereof, and the (B) radically polymerizable compound contains a (B-1) bifunctional or higher (meth)acrylic compound that has a glass transition temperature of 150 C. or higher as a homopolymer, and a (B-2) tetrafunctional or higher (meth)acrylic compound other than the (B-1).

The present invention relates to a modifier represented by Formula 1, a modified conjugated diene-based polymer having a high modification ratio which includes a modifier-derived functional group, and a method of preparing the polymer.

A modified conjugated diene-based polymer, and more particularly, a modified conjugated diene-based polymer having a unimodal molecular weight distribution curve measured by gel permeation chromatography (GPC), molecular weight distribution (PDI; MWD) of less than 1.7, and a Si content of 100 ppm or more based on weight, and a rubber composition including the same.

A method of producing modified vinyl alcohol-based polymer particles, includes mixing vinyl alcohol-based polymer particles with a mixed medium containing unsaturated carboxylic acid, an acid catalyst, and water, wherein, by mixing the vinyl alcohol-based polymer particles with the mixed medium, the vinyl alcohol-based polymer particles are reacted with the unsaturated carboxylic acid to obtain modified vinyl alcohol-based polymer particles containing a vinyl ester unit represented by a formula (2) below, having a vinyl alcohol unit content based on the total constitutional units of 60 mol % or more and less than 95 mol %, and having an average particle diameter from 50 to 2000 m. The production method is capable of controlling the particle shape and does not cause the problem of the residual sulfur content, and is further convenient and economically advantageous. ##STR00001##

The anion exchange membranes exhibit enhanced chemical stability and ion conductivity when compared with traditional styrene-based alkaline anion exchange membranes. A copolymer backbone is polymerized from a reaction medium that includes a diphenylalkylene and an alkadiene. The copolymer includes a plurality of pendant phenyl groups. The diphenyl groups on the polymer backbone are functionalized with one or more haloalkylated precursor substrates. The terminal halide from the precursor substrate can then be substituted with a desired ionic group. The diphenylethylene-based alkaline anion exchange membranes lack the ?-hydrogens sharing tertiary carbons with phenyl groups from polystyrene or styrene-based precursor polymers, resulting in higher chemical stability. The ionic groups are also apart from each other by about 3 to 6 carbons in the polymer backbone, enhancing ion conductivity. These membrane are advantageous for use in fuel cells, electrolyzers employing hydrogen, ion separations, etc.

Provided is a binder composition for an electrochemical device that can stably disperse a conductive carbon material and that can cause an electrochemical device to display excellent output characteristics and high-voltage cycle characteristics. The binder composition for an electrochemical device contains a polymer including a nitrile group-containing monomer unit and an alkylene structural unit and a group 13 element and satisfies a relationship formula: 0.1?M/I?150 (in the formula, I is the iodine value [g/100 g] of the polymer and M is the concentration [ppm] of the group 13 element).

The present invention relates to a method of inhibiting corrosion experienced during use of a base oil or lubricant by the addition of a polyester corrosion inhibitor. More especially, the polyester corrosion inhibitor is the reaction product of an alk(en)yl substituted succinic anhydride wherein the average number of succinic groups per alk(en)yl group is less than 3.0, and at least one polyol. There is also provided a composition comprising such a polyester corrosion inhibitor and use of such a composition as a corrosion inhibitor, as well as a base oil or lubricant comprising such a polyester corrosion inhibitor.

The disclosure belongs to the technical field of synthetic adhesives, and discloses a bionic wet surface adhesion promoter and the preparation thereof, and a room temperature curable silicone sealant composition and the preparation thereof. A method for preparing a bionic wet surface adhesion promoter includes: reacting polyvinylpyrrolidone with 2-chloro-3,4-dihydroxyacetophenon; purifying the product obtained in the reaction step using n-hexane; drying the product obtained in the purification step using a vacuum drying process; and grinding the product obtained in the drying step into powder using a ball milling process; wherein the mass ratio of polyvinylpyrrolidone to 2-chloro-3,4-dihydroxyacetophenon is (0.81.2):1. The room temperature curable silicone sealant composition according to the disclosure includes the bionic wet surface adhesion promoter prepared by the above method, has good adhesion performance on both dry and wet surfaces and is well-suited for use in the construction field, especially for use in humid environments.

Compositions of self-crosslinking composite binders for silicon-based electrodes, associated processes of forming silicon-based electrodes using the composite binders, as well as batteries utilizing the silicon-based electrodes formed using the composite binders are disclosed herein. In certain examples, the composite binder can include a first component configured to provide structural integrity in a silicon-based electrode and a second component configured to form a mesh-like structural network with the first component to provide flexibility of the silicon-based electrode and adhesiveness toward a current collector. The flexible mesh-like structural network is formed via gradient hydrogen bonds between chains of the first component and chains of the second components.