An oxygen permeable polymer has the following formula: ##STR00001##
wherein R.sub.S is a non-sulfonyl halide portion of a sulfonyl halide monomer or polymer; X.sub.P is NH or NHCO; A is an optionally substituted alkyl; L is 0, 1 or 2; m is 2 or 3; Z is H or CH.sub.3; and n is 5-m. The polymer can be used in air separation devices, air concentrators, and in electrodes for electrochemical devices.

A composition of matter includes a mixture of styrene derivative monomers and methacrylate/acrylate derivative monomers, which have one or more urethane, carbamate, amide, and/or amine functional groups, 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 chemistry and composition of the feeding monomers rather than the viscosity of the monomers.

A composition of matter includes a mixture of styrene derivative monomers and methacrylate/acrylate derivative monomers, which have one or more urethane, carbamate, amide, and/or amine functional groups, 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 chemistry and composition of the feeding monomers rather than the viscosity of the monomers.

An oxygen permeable polymer has the following formula:

##STR00001##

wherein R.sub.S is a non-sulfonyl halide portion of a sulfonyl halide monomer or polymer; X.sub.P is NH or NHCO; A is an optionally substituted alkyl; L is 0, 1 or 2; m is 2 or 3; Z is H or CH.sub.3; and n is 5m. The polymer can be used in air separation devices, air concentrators, and in electrodes for electrochemical devices.

An oxygen permeable polymer has the following formula:

##STR00001##

wherein R.sub.S is a non-sulfonyl halide portion of a sulfonyl halide monomer or polymer; X.sub.P is NH or NHCO; A is an optionally substituted alkyl; L is 0, 1 or 2; m is 2 or 3; Z is H or CH.sub.3; and n is 5m. The polymer can be used in air separation devices, air concentrators, and in electrodes for electrochemical devices.

Provided is a polyfunctional vinyl aromatic copolymer having reactivity and solubility that can be used for manufacturing a copolymer rubber and a copolymer rubber material having processability, strength and homogeneity obtained therefrom. The polyfunctional vinyl aromatic copolymer includes: 0.5 mol % or more and 40 mol % or less of a structural unit (a) derived from a divinyl aromatic compound and 60 mol % or more and 99.5 mol % or less of a structural unit (b) derived from a monovinyl aromatic compound, in which at least some of the structural units (a) are a crosslinked structural unit (a2) represented by the following Formula (2) and a vinyl-group-containing structural unit (a1) represented by the following Formula (1): ##STR00001##
in the formulas, R.sup.1's independently represent an aromatic hydrocarbon group having 6 to 30 carbon atoms.

Provided is a polyfunctional vinyl aromatic copolymer having reactivity and solubility that can be used for manufacturing a copolymer rubber and a copolymer rubber material having processability, strength and homogeneity obtained therefrom. The polyfunctional vinyl aromatic copolymer includes: 0.5 mol % or more and 40 mol % or less of a structural unit (a) derived from a divinyl aromatic compound and 60 mol % or more and 99.5 mol % or less of a structural unit (b) derived from a monovinyl aromatic compound, in which at least some of the structural units (a) are a crosslinked structural unit (a2) represented by the following Formula (2) and a vinyl-group-containing structural unit (a1) represented by the following Formula (1): ##STR00001##
in the formulas, R.sup.1's independently represent an aromatic hydrocarbon group having 6 to 30 carbon atoms.

This invention provides a resin composition for preparing an allylphenol-maleimide copolymer used for a protective film for an electronic component including: (A) an allyl group-containing phenol compound having a rigid structure; (B) an N-aromatic maleimide group-containing compound having a rigid structure; and (C) an N-aliphatic maleimide group-containing compound having a flexible structure.

This invention provides a resin composition for preparing an allylphenol-maleimide copolymer used for a protective film for an electronic component including: (A) an allyl group-containing phenol compound having a rigid structure; (B) an N-aromatic maleimide group-containing compound having a rigid structure; and (C) an N-aliphatic maleimide group-containing compound having a flexible structure.

[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.