In some aspects, the present disclosure pertains to systems for forming hydrogels that comprise (a) a first composition that comprises a polyiodinated polyamino compound that comprises a polyamino moiety linked to a polyiodinated aromatic moiety by an amide group or ester group and (b) a second composition that comprises a reactive multi-arm polymer that comprises a plurality of hydrophilic polymer arms having reactive end groups that are reactive with amino groups of the polyiodinated polyamino compound. Other aspects of the present disclosure pertain to medical hydrogels and methods of making medical hydrogels that are based on such compositions. Further aspects of the present disclosure pertain to methods of making polyiodinated polyamino compounds.

A water dispersible sulfopolymer for use as a material in the layer-wise additive manufacture of a 3D part made of a non water dispersible polymer wherein the water dispersible polymer is a reaction product of a metal sulfo monomer, the water dispersible sulfo-polymer being dispersible in water resulting in separation of the water dispersible polymer from the 3D part made of the non water dispersible polymer.

A water dispersible sulfopolymer for use as a material in the layer-wise additive manufacture of a 3D part made of a non water dispersible polymer wherein the water dispersible polymer is a reaction product of a metal sulfo monomer, the water dispersible sulfo-polymer being dispersible in water resulting in separation of the water dispersible polymer from the 3D part made of the non water dispersible polymer.

The present invention relates to a polyamide resin in which an average particle size of individual crystals measured by a small-angle X-ray scattering apparatus is 8.0 nm or less, and a polymer film and resin laminate using the same.

The present invention relates to a polyimide-based film, a window cover film including the polyimide-based film, and a display panel including the polyimide-based film. More specifically, the present invention relates to a polyimide-based film of which a modulus measured according to ASTM D882 is 5 GPa or more and a rate of change of the modulus, after the polyimide-based film is maintained under a high-temperature and high-humidity condition of 60° C. and 90% RH for 500 hours, is 10% or less.

Provided are a polymer having a constituent component represented by formula (I) below, a method for producing the polymer, a diamine compound suitable as a raw material for the polymer, a gas separation membrane haying a gas separation layer including the polymer, and a gas separation module and a gas separation apparatus that have the gas separation membrane. ##STR00001## In the formula (I), R.sup.A, R.sup.B, and R.sup.C represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a halogen atom. Herein, at least one of R.sup.A, R.sup.B, or R.sup.C represents an alkyl group having 1 to 4 carbon atoms or a halogen atom. The alkyl group having 1 to 4 carbon atoms is not trifluoromethyl and ** represents linking sites.

A phosphorus-containing ionic liquid, a phosphorus-containing a flame retardant additive, and a preparation method thereof are provided. Also provided are co-monomer salt compositions for flame retardant polymers. Also provided are polymers that comprise the phosphorus-containing flame retardant ionic liquid or flame retardant co-monomer salt. The resin composition may be used to make various articles, including fibers, fabrics, and yarns.

A phosphorus-containing ionic liquid, a phosphorus-containing a flame retardant additive, and a preparation method thereof are provided. Also provided are co-monomer salt compositions for flame retardant polymers. Also provided are polymers that comprise the phosphorus-containing flame retardant ionic liquid or flame retardant co-monomer salt. The resin composition may be used to make various articles, including fibers, fabrics, and yarns.

Provided are a solid electrolyte composition including: an inorganic solid electrolyte having conductivity of an ion of metal belong to Group 1 or 2 in the periodic table; and a high polymer binder, in which the high polymer binder is formed of a polymer having a hard segment and a soft segment, a binder for all-solid-state secondary batteries, and an electrode sheet for batteries and an all-solid-state secondary battery each using the solid electrolyte composition.

Provided are a solid electrolyte composition including: an inorganic solid electrolyte having conductivity of an ion of metal belong to Group 1 or 2 in the periodic table; and a high polymer binder, in which the high polymer binder is formed of a polymer having a hard segment and a soft segment, a binder for all-solid-state secondary batteries, and an electrode sheet for batteries and an all-solid-state secondary battery each using the solid electrolyte composition.