A stable conductive myocardial patch with a negative Poisson's ratio structure is provided. The preparation method includes preparing a myocardial patch substrate with concave polygons as the structural units by weaving or knitting, and then a conductive coating is coated on the surface of the substrate. Alternatively, the yarns can be processed into conductive coated yarns first, and then used as the raw material to weave or knit a stable conductive myocardial patch with a negative Poisson's ratio structure. The prepared myocardial patch has a relative resistance change of less than 5% at 50% tensile strain. When the strain of the structural units is within 50%, the fabric exhibits a negative Poisson's ratio structure, which expands in the perpendicular direction of the tensile load. The fabric exhibits a negative Poisson's ratio effect and anisotropy of Young's modulus, which matches the mechanical behavior of natural myocardium.

A hydrate kinetic inhibitor, which is prepared by a polymerization of mercaptoethanol and N-vinylcaprolactam, is hydroxyl terminated poly(N-vinylcaprolactam) having a structure of formula (I) below, wherein n=10 to 1000. The inhibitor is a novel hydrate kinetic inhibitor, which has low effective concentration and high cloud point, and is effective when the degree of supercooling is relatively high.

##STR00001##

A hydrate kinetic inhibitor, which is prepared by a polymerization of mercaptoethanol and N-vinylcaprolactam, is hydroxyl terminated poly(N-vinylcaprolactam) having a structure of formula (I) below, wherein n=10 to 1000. The inhibitor is a novel hydrate kinetic inhibitor, which has low effective concentration and high cloud point, and is effective when the degree of supercooling is relatively high.

##STR00001##

A vinylpyridine resin for a catalyst support; a method for producing thereof; and a catalyst for carbonylation of methanol are disclosed. The vinylpyridine resin has: content of nitrogen derived from a pyridine group of 3.00% by mass or more and 8.00% by mass or less; degree of crosslinking of 35% by mole or more and 70% by mole or less; molar ratio C/N of carbon atoms to nitrogen atoms of 12.00 or more and 36.00 or less; total pore volume of 0.20 cc/g or more and 0.45 cc/g or less; specific surface area of 70.0 m.sup.2/g or more and 280 m.sup.2/g or less; average pore diameter of 5.0 nm or more and 25.0 nm or less; and proportion of a volume of pores having a pore diameter of 10 nm or more to a volume of the whole pores of 4.0% or more and 90.0% or less.

A vinylpyridine resin for a catalyst support; a method for producing thereof; and a catalyst for carbonylation of methanol are disclosed. The vinylpyridine resin has: content of nitrogen derived from a pyridine group of 3.00% by mass or more and 8.00% by mass or less; degree of crosslinking of 35% by mole or more and 70% by mole or less; molar ratio C/N of carbon atoms to nitrogen atoms of 12.00 or more and 36.00 or less; total pore volume of 0.20 cc/g or more and 0.45 cc/g or less; specific surface area of 70.0 m.sup.2/g or more and 280 m.sup.2/g or less; average pore diameter of 5.0 nm or more and 25.0 nm or less; and proportion of a volume of pores having a pore diameter of 10 nm or more to a volume of the whole pores of 4.0% or more and 90.0% or less.

Polymers including bifunctional mono- or poly-cyclic heterocyclic or heteroaromatic repeating units having disinfecting activity, compositions thereof, and methods for disinfecting surfaces utilizing the compositions. The method for disinfecting includes brushing, spraying, wiping, casting, dipping, or vapor coating, to the surface a disinfecting material to thereby render the surface antiseptic. The surface being disinfected by this method may be smooth, rough, tough, or soft, and may be selected from a cardboard, cloth, stainless steel or metallic surface, plastic, glass, wood, paper, surgical glove, or skin.

Polymers including bifunctional mono- or poly-cyclic heterocyclic or heteroaromatic repeating units having disinfecting activity, compositions thereof, and methods for disinfecting surfaces utilizing the compositions. The method for disinfecting includes brushing, spraying, wiping, casting, dipping, or vapor coating, to the surface a disinfecting material to thereby render the surface antiseptic. The surface being disinfected by this method may be smooth, rough, tough, or soft, and may be selected from a cardboard, cloth, stainless steel or metallic surface, plastic, glass, wood, paper, surgical glove, or skin.

Here are described polymers comprising monomeric units from vinylimidazole derivatives and their use in electrode materials and/or electrolyte compositions, as well as their methods of preparation. Also described are electrode materials, electrodes, and electrochemical cells comprising the polymers and their use.

Provided is a process for preparing an alcoholic solution of a polyvinylpyridine polymer having biocidal and biocompatibility properties. The alcoholic solution is ready-to-graft in order to confer biocidal properties to various surfaces and to prevent biofilm formation on such surfaces. Also provided are methods of using the alcoholic solution, such as for controlling the growth of bacteria, fungi and/or viruses, and/or for preventing digestion of wood cellulose by wood-boring insects.

Provided is a process for preparing an alcoholic solution of a polyvinylpyridine polymer having biocidal and biocompatibility properties. The alcoholic solution is ready-to-graft in order to confer biocidal properties to various surfaces and to prevent biofilm formation on such surfaces. Also provided are methods of using the alcoholic solution, such as for controlling the growth of bacteria, fungi and/or viruses, and/or for preventing digestion of wood cellulose by wood-boring insects.