[Problem] To provide a cross-polymer having excellent softness, tensile properties, transparency and anti-blocking properties, and a medical single-layer tube using the same. [Solution] A cross-copolymer containing, by 75-95 mass %, main chains comprising aromatic vinyl/olefin-based copolymers comprising 8.99-15.99 mol % of aromatic vinyl monomer units, 84-91 mol % of olefin monomer units and 0.01-0.5 mol % of aromatic polyene monomer units; and by 5-25 mass %, cross-chains comprising polymers comprising aromatic vinyl monomer units; wherein, based on differential scanning calorimetry (DSC) in which the cross-copolymer is cooled to 50 C. in a 30 mL/min nitrogen flow, then heated to 180 C. at a temperature increase rate of 10 C./min, re-cooled to 50 C., and heated to 180 C. at a temperature increase rate of 10 C./min, the cross-copolymer has a top temperature of melting peak of 60-80 C., and a heat of fusion of 45-75 J/g, as calculated from the area of the DSC curve between 20 C. and 130 C. by using a straight line drawn between points on the DSC curve at 20 C. and 130 C.

A method of capturing a basic, nitrogen-containing compound is provided. The basic, nitrogen-containing compound is captured by sorption (e.g., adsorption) on a sulfonic-acid containing polymeric material. The sulfonic acid-containing polymeric material is formed from a polymerizable composition that contains a free-radically polymerizable spirobisindane monomer. Additionally, a polymeric material is provided that is a reaction product of a sulfonic acid-containing polymeric material having at least one SO3H group and a basic, nitrogen-containing compound of formula Q. This polymeric material has at least one group of formula SO.sub.3.sup.(QH.sup.+).

A method of capturing a basic, nitrogen-containing compound is provided. The basic, nitrogen-containing compound is captured by sorption (e.g., adsorption) on a sulfonic-acid containing polymeric material. The sulfonic acid-containing polymeric material is formed from a polymerizable composition that contains a free-radically polymerizable spirobisindane monomer. Additionally, a polymeric material is provided that is a reaction product of a sulfonic acid-containing polymeric material having at least one SO3H group and a basic, nitrogen-containing compound of formula Q. This polymeric material has at least one group of formula SO.sub.3.sup.(QH.sup.+).

A composition of matter includes a mixture of styrene derivative monomers and methacrylate/acrylate derivative monomers, which form hydrogen bonds between/among different precursors, and initiators, and the compositions are used to achieve composition control of the forming polymer, with the mole fraction of acrylate/methacrylate and styrene moieties in the forming polymer determined preferably by the monomer reactivity and monomer composition rather than the viscosity of the monomers.

A composition of matter includes a mixture of styrene derivative monomers and methacrylate/acrylate derivative monomers, which form hydrogen bonds between/among different precursors, and initiators, and the compositions are used to achieve composition control of the forming polymer, with the mole fraction of acrylate/methacrylate and styrene moieties in the forming polymer determined preferably by the monomer reactivity and monomer composition rather than the viscosity of the monomers.

Ionic polymers (IP) are made of anions and a polymeric backbone containing cations. The ionic polymers are incorporated in membranes or attached to solid supports and use of the ionic polymers in processing of biomass.

Ionic polymers (IP) are made of anions and a polymeric backbone containing cations. The ionic polymers are incorporated in membranes or attached to solid supports and use of the ionic polymers in processing of biomass.

A polysulfide material having reactive vinyl end groups and a method of making a vinyl end-capped polysulfide material are described. The vinyl end-capped polysulfide material has potential applications as a sealant, an adhesive, a coating, a caulking, or the like. In a specific example, the polysulfide material may be used as a precursor material for a sealant resin in the manufacturing of an integral fuel tank of an aircraft. An example method for making polysulfide materials includes contacting a vinyl-functionalized aryl halide and/or a vinyl-functionalized heteroaryl halide with dithiols and/or trithiols in the presence of an organic solvent.

A polysulfide material having reactive vinyl end groups and a method of making a vinyl end-capped polysulfide material are described. The vinyl end-capped polysulfide material has potential applications as a sealant, an adhesive, a coating, a caulking, or the like. In a specific example, the polysulfide material may be used as a precursor material for a sealant resin in the manufacturing of an integral fuel tank of an aircraft. An example method for making polysulfide materials includes contacting a vinyl-functionalized aryl halide and/or a vinyl-functionalized heteroaryl halide with dithiols and/or trithiols in the presence of an organic solvent.

An aqueous binder composition for a secondary battery electrode containing a silane coupling agent without ethylenically unsaturated bonds, a resin which is a polymer of at least one kind of ethylenically unsaturated monomers, a resin which is a polymer of at least one kind of ethylenically unsaturated monomer, and at least one kind of solvent selected from water and a hydrophilic solvent. The amount of silane coupling agent is from 0.5 to 9 parts by mass based on 100 parts by mass of ethylenically unsaturated monomer. The pH of the composition is 2.5 to 8.0. Also disclosed is a binder obtained by curing the aqueous binder composition, a slurry containing the aqueous binder composition and an active material, a secondary battery electrode obtained by curing the slurry, and a secondary battery including the secondary battery electrode.