The present invention relates to a curable composition which can be cured by radiation and/or the influence of temperature; a cured product which is obtained from such a composition; an object and a composite which have the cured composition; and a method for producing the same. The cured composition has a high refractive index.

The present invention relates to a curable composition which can be cured by radiation and/or the influence of temperature; a cured product which is obtained from such a composition; an object and a composite which have the cured composition; and a method for producing the same. The cured composition has a high refractive index.

Copolymerization of elemental sulfur with functional comonomers afford sulfur copolymers having a high molecular weight and high sulfur content. Nucleophilic activators initiate sulfur polymerizations at relative lower temperatures and in solutions, which enable the use of a wider range of comonomers, such as vinylics, styrenics, and non-homopolymerizing comonomers. Nucleophilic activators promote ring-opening reactions to generate linear polysulfide intermediates that copolymerize with comonomers. Dynamic sulfur-sulfur bonds enable re-processing or melt processing of the sulfur polymer. Chalcogenide-based copolymers have a refractive index of about 1.7-2.6 at a wavelength in a range of about 5000 nm-8.Math..Math.. The sulfur copolymer can be a thermoplastic or a thermoset for use in elastomers, resins, lubricants, coatings, antioxidants, cathode materials for electrochemical cells, dental adhesives/restorations, and polymeric articles such as polymeric films and free-standing substrates. Optical substrates are constructed from the chalcogenide copolymer and are substantially transparent in the visible and infrared spectrum.

Methods, compositions, reagents, and systems that allow for the preparation and utilization of sulfonamide salt polymer electrolytes are disclosed herein. Methods and reagents to prepare sulfonamide salt monomers are also disclosed herein. The sulfonamide salt polymer electrolytes can be used as components in energy storage devices, conductive materials, electrochemical cells, gels, adhesives, and drug delivery vehicles.

A treatment process for removing the thiocarbonylthio group from the RAFT polymers without sacrificing the versatile complex architectures of polymer is disclosed. The resultant RAFT polymers have higher optical clarity and less odor than conventionally prepared RAFT polymers.

A treatment process for removing the thiocarbonylthio group from the RAFT polymers without sacrificing the versatile complex architectures of polymer is disclosed. The resultant RAFT polymers have higher optical clarity and less odor than conventionally prepared RAFT polymers.

A carrier which may have excellent pressure resistance, and even when a protein ligand is not immobilized thereon, a high dynamic binding capacity to a target substance, and a high performance of separating a target substance from a biological sample. Such a carrier may include a polymer having a crosslinked structure containing a divalent group of formula (1): ##STR00001##
wherein R.sup.1 to R.sup.4 are independently a single bond or divalent hydrocarbon group, R.sup.5 and R.sup.6 are independently H or a hydrocarbon group, X is a thio group, sulfinyl group, sulfonyl group, oxy group, >N(R.sup.31), >Si(R.sup.32).sub.2, >P(R.sup.33), >P(O)(R.sup.34), >B(R.sup.35), or >C(R.sup.36).sub.2 (R.sup.31 to R.sup.36 independently being H or hydrocarbon group), and * is a bond, provided that when both R.sup.1 and R.sup.3 or both R.sup.2 and R.sup.4 are a divalent hydrocarbon group, respectively, R.sup.1 and R.sup.3 or R.sup.2 and R.sup.4 may form a ring together with an adjacent carbon atom.

A carrier which may have excellent pressure resistance, and even when a protein ligand is not immobilized thereon, a high dynamic binding capacity to a target substance, and a high performance of separating a target substance from a biological sample. Such a carrier may include a polymer having a crosslinked structure containing a divalent group of formula (1): ##STR00001##
wherein R.sup.1 to R.sup.4 are independently a single bond or divalent hydrocarbon group, R.sup.5 and R.sup.6 are independently H or a hydrocarbon group, X is a thio group, sulfinyl group, sulfonyl group, oxy group, >N(R.sup.31), >Si(R.sup.32).sub.2, >P(R.sup.33), >P(O)(R.sup.34), >B(R.sup.35), or >C(R.sup.36).sub.2 (R.sup.31 to R.sup.36 independently being H or hydrocarbon group), and * is a bond, provided that when both R.sup.1 and R.sup.3 or both R.sup.2 and R.sup.4 are a divalent hydrocarbon group, respectively, R.sup.1 and R.sup.3 or R.sup.2 and R.sup.4 may form a ring together with an adjacent carbon atom.

The present invention relates to curable compositions based on elemental sulfur and polymer components. The inventive composition cures in the presence of elemental sulfur, thus providing a novel composition with enhanced chemical and physical properties in particular useful for sealing and coating applications.

Cyclopolymers and N,N-diallyl methionine-based monomers or salts, solvates, tautomers or stereoisomers as corrosion inhibitors. A process for producing the cyclopolymers by Butler cyclopolymerization of the monomers in the presence of sulfur dioxide. In addition, a method for determining a percent inhibition efficiency of metal corrosion for the cyclopolymers and monomers as well as applications and methods for the cyclopolymers as coatings, compositions, and formulations for preventing metal corrosion.