Described are rheology modifier compositions comprising cross-linked poly(amino acid) and methods of their use in aqueous compositions.

A glucose electrochemical sensor based on a hydrogel of a cationic redox polymer containing a transition metal complex medium, and a preparation method thereof. A sensing layer of the glucose electrochemical sensor comprises a cationic redox polymer containing a transition metal complex medium, glucose oxidase, and a crosslinking agent. The glucose electrochemical sensor can specifically measure glucose, and the linear correlation coefficient between a stable current signal of the glucose electrochemical sensor and the glucose concentration is high. The influence of interfering substances on glucose measurement can be eliminated, and the influence of oxygen concentration in a solution on glucose measurement can also be eliminated.

A fiber-reinforced resin composition includes a polyamide resin and a polyolefin resin, and when one resin between the polyamide resin and the polyolefin resin is set as a first resin, and the other resin is set as a second resin, the composition has a sea-island structure including a continuous phase C consisting of the first resin and a dispersed phase c consisting of the second resin dispersed in the continuous phase C, and in a resin phase separation cross-sectional structure, a total of cross-sectional areas of dispersed phases having a cross-sectional area equal to or smaller than an average cross-sectional area of the reinforcing fiber is 20% or less with respect to a total of cross-sectional areas of all dispersed phases.

This invention relates to a treatment process for a material chosen from among a polyamide, a polyester and a poly(meth)acrylate. According to the invention, this process comprises a step in which contact is made between this material and a polar organic solvent in a supercritical fluid. This invention also relates to a process for manufacturing a part from a material chosen from among a polyamide, a polyester and a poly(meth)acrylate in a divided form. Finally, the invention relates to use of the material treated by the treatment process and to use of the part manufactured by the manufacturing process in the low voltage, medium voltage or high voltage electrical industry.

A polygonal scaffold includes at least three polyproline II (PPII) helix rods and at least three connectors. Each of the PPII helix rods is composed of a plurality of repeat units represented by Formula (i), and at least one of the PPII helix rods has at least one hydrogen atom of at least one of the repeat units being substituted by a first chemical handle for connecting a ligand. Each of the connectors is a divalent organic group, and every two of the PPII helix rods are connected by one of the connectors to form a closed ring. Therefore, with the uniform composition, the PPII helix rods have a stable helical structure under aqueous conditions, and a desired rigidity can be provided.

The present invention relates to a sizing agent for carbon fibers, a carbon fiber with improved interfacial adhesion, a polymerization reaction type carbon fiber-reinforced polymer composite material using the same, and a production method therefor and, more specifically, to a sizing agent for carbon fibers, comprising a phenoxy resin and a block isocyanate compound prepared through a reaction of -caprolactam with one of two isocyanate groups of a diisocyanate compound, and the production of a carbon fiber with improved interfacial adhesion using the same, a polymerization reaction type carbon fiber-reinforced polymer composite material using the carbon fiber with improved interfacial adhesion, and a production method therefor.

For purposes of providing a thermoplastic resin composition that imparts excellent impact resistance comparable to that of PA11 even with a polyamide resin having a short chain structure, a method for producing the thermoplastic resin composition, and a molded body, the present thermoplastic resin composition is a thermoplastic resin composition formed by compounding a polyolefin resin, a polyamide resin, and a modified elastomer having a group reactive with the polyamide resin, wherein the polyolefin resin has a number average molecular weight of 350000 or more, and the polyamide resin has a structure in which a carbon number of a linear-chain part of hydrocarbon group sandwiched between adjacent amide bonds in a main chain is 5 or less. The molded body is made of the thermoplastic resin composition. The thermoplastic resin composition is obtained by melt-kneading a melt-kneaded product of a polyamide resin and a modified elastomer, and a polyolefin resin.

Provided is a joined body comprising a first joined member, a second joined member, and a joining layer that joins the first joined member and the second joined member, wherein the first joined member and the second joined member are each independently one selected from the group consisting of a metal member, a polyamide resin member, and a polyolefin resin member, the joining layer is a layer formed of a resin composition having a co-continuous phase including a continuous phase A formed of the polyamide resin and a continuous phase B formed of the polyolefin resin and has a dispersed domain a distributed in the continuous phase A, a finely dispersed subdomain a distributed in the dispersed domain a, a dispersed domain b distributed in the continuous phase B, and a finely dispersed subdomain b distributed in the dispersed domain b.

A process for production of expanded thermoplastic elastomer beads in the presence of a gaseous medium that surrounds thermoplastic elastomer beads. The process comprises a) an impregnating step, in which the gaseous medium has an impregnating temperature T.sub.a, and the absolute pressure of the gaseous medium is greater than ambient pressure, the thermoplastic elastomer beads impregnated with a blowing agent, b) an expanding step, in which the thermoplastic elastomer beads expand as they are exposed to a pressure reduction at a first expanding temperature T.sub.b, and c) optionally a fusing step, in which the expanded thermoplastic elastomer beads are fused together at a fusing temperature T.sub.c to form at least one shaped part.

The present invention relates to a magnetic composite material characterized in that it comprises:

4% to 30% by weight of a copolymer,

70% to 96% by weight of magnetic powder,

0% to 5% by weight of at least one coupling agent,

0% to 5% by weight of at least one additive,

where the sum of the copolymer, the magnetic powder, the coupling agent and the additive is 100% by weight, said copolymer consisting of:

at least one unit (A) chosen from a polyamide unit,

at least one monocarboxylic acid unit (B),

at least one diamine unit (C),

at least one triamine unit (D),

optionally at least one polyetheramide unit (E),
where the sum of the constituents A, B, C, D and E is 100% by weight relative to the total weight of the copolymer.