Patent classifications
C08F26/10
CONDUCTIVE COMPOSITION AND PRODUCTION METHOD THEREFOR, AND WATER-SOLUBLE POLYMER AND PRODUCTION METHOD THEREFOR
A conductive composition comprising a conductive polymer (A), a water-soluble polymer (B), and a solvent (C1), wherein: the water-soluble polymer (B) comprises a water-soluble polymer (B11) represented by formula (11), and an amount of a water-soluble polymer (B2) represented by formula (2) as the water-soluble polymer (B) is 0.15% by mass or less, based on a total mass of the conductive composition:
##STR00001##
wherein R.sup.1 denotes a linear or branched alkyl group with 6 to 20 carbon atoms, each of R.sup.4 and R.sup.5 independently denotes a methyl or ethyl group, R.sup.6 denotes a hydrophilic group, R.sup.7 denotes a hydrogen atom or a methyl group, Y.sup.1 denotes a single bond, S, S(O), C(O)O or O, Z denotes a cyano group or a hydroxy group, each of p1 and q denotes an average number of repetitions, and is a number of from 1 to 50, and m denotes a number of from 1 to 5.
CONDUCTIVE COMPOSITION AND PRODUCTION METHOD THEREFOR, AND WATER-SOLUBLE POLYMER AND PRODUCTION METHOD THEREFOR
A conductive composition comprising a conductive polymer (A), a water-soluble polymer (B), and a solvent (C1), wherein: the water-soluble polymer (B) comprises a water-soluble polymer (B11) represented by formula (11), and an amount of a water-soluble polymer (B2) represented by formula (2) as the water-soluble polymer (B) is 0.15% by mass or less, based on a total mass of the conductive composition:
##STR00001##
wherein R.sup.1 denotes a linear or branched alkyl group with 6 to 20 carbon atoms, each of R.sup.4 and R.sup.5 independently denotes a methyl or ethyl group, R.sup.6 denotes a hydrophilic group, R.sup.7 denotes a hydrogen atom or a methyl group, Y.sup.1 denotes a single bond, S, S(O), C(O)O or O, Z denotes a cyano group or a hydroxy group, each of p1 and q denotes an average number of repetitions, and is a number of from 1 to 50, and m denotes a number of from 1 to 5.
High water content ophthalmic devices
An ophthalmic device is disclosed which is a polymerization product of a monomeric mixture comprising: (a) a major amount of one or more first non-silicone-containing hydrophilic monomers; (b) one or more hydrophobic monomers; and (c) a crosslinking agent mixture comprising (i) one or more di-, tri- or tetra(meth)acrylate-containing crosslinking agents and (ii) one or more di-, tri- or tetracarbamate-containing crosslinking agents, wherein the ophthalmic device has an equilibrium water content of at least about 65 weight percent.
High water content ophthalmic devices
An ophthalmic device is disclosed which is a polymerization product of a monomeric mixture comprising: (a) a major amount of one or more first non-silicone-containing hydrophilic monomers; (b) one or more hydrophobic monomers; and (c) a crosslinking agent mixture comprising (i) one or more di-, tri- or tetra(meth)acrylate-containing crosslinking agents and (ii) one or more di-, tri- or tetracarbamate-containing crosslinking agents, wherein the ophthalmic device has an equilibrium water content of at least about 65 weight percent.
SYNTHESIS AND APPLICATION OF CHIRAL SUBSTITUTED POLYVINYLPYRROLIDINONES
Chiral polyvinylpyrrolidinone (CSPVP), complexes of CSPVP with a core species, such as a metallic nanocluster catalyst, and enantioselective oxidation reactions utilizing such complexes are disclosed. The CSPVP complexes can be used in asymmetric oxidation of diols, enantioselective oxidation of alkenes, and carbon-carbon bond forming reactions, for example. The CSPVP can also be complexed with biomolecules such as proteins, DNA, and RNA, and used as nanocarriers for siRNA or dsRNA delivery.
SYNTHESIS AND APPLICATION OF CHIRAL SUBSTITUTED POLYVINYLPYRROLIDINONES
Chiral polyvinylpyrrolidinone (CSPVP), complexes of CSPVP with a core species, such as a metallic nanocluster catalyst, and enantioselective oxidation reactions utilizing such complexes are disclosed. The CSPVP complexes can be used in asymmetric oxidation of diols, enantioselective oxidation of alkenes, and carbon-carbon bond forming reactions, for example. The CSPVP can also be complexed with biomolecules such as proteins, DNA, and RNA, and used as nanocarriers for siRNA or dsRNA delivery.
Molecularly engineered high thermal conductivity polymers and methods for making the same
Methods of increasing thermal conductivity of a bulk polymer are provided. The methods include contacting a bulk polyelectrolyte polymer comprising an ionizable repeating pendant group with an aqueous liquid having a pH that ionizes the pendant group and isotropically extend the polyelectrolyte polymer to an extended non-globular chain conformation. The polyelectrolyte polymer so treated thus exhibits a thermal conductivity of greater than or equal to about 0.6 W/m.Math.K and optionally greater than or equal to about 1 W/m.Math.K. In other aspects, the present disclosure provides a high thermal conductivity material comprising a bulk polyelectrolyte polymer bearing a repeating charged group and having an extended non-globular chain conformation and that exhibits a thermal conductivity of greater than or equal to about 0.6 W/m.Math.K and optionally greater than or equal to about 1 W/m.Math.K. The high thermal conductivity material may be used in electronic devices, including as housings/encapsulation and thermal interfaces.
Molecularly engineered high thermal conductivity polymers and methods for making the same
Methods of increasing thermal conductivity of a bulk polymer are provided. The methods include contacting a bulk polyelectrolyte polymer comprising an ionizable repeating pendant group with an aqueous liquid having a pH that ionizes the pendant group and isotropically extend the polyelectrolyte polymer to an extended non-globular chain conformation. The polyelectrolyte polymer so treated thus exhibits a thermal conductivity of greater than or equal to about 0.6 W/m.Math.K and optionally greater than or equal to about 1 W/m.Math.K. In other aspects, the present disclosure provides a high thermal conductivity material comprising a bulk polyelectrolyte polymer bearing a repeating charged group and having an extended non-globular chain conformation and that exhibits a thermal conductivity of greater than or equal to about 0.6 W/m.Math.K and optionally greater than or equal to about 1 W/m.Math.K. The high thermal conductivity material may be used in electronic devices, including as housings/encapsulation and thermal interfaces.
Azole derivatives for corrosion mitigation
Anticorrosion compounds and compositions can be used in methods for preventing metal corrosion. More specifically, the method comprises contacting an anticorrosion composition to an aqueous system in contact with a metal. The anticorrosion composition comprises substituted and/or hydrogenated benzotriazoles and tolyltriazoles.
HIGH WATER CONTENT OPHTHALMIC DEVICES
An ophthalmic device is disclosed which is a polymerization product of a monomeric mixture comprising: (a) a major amount of one or more first non-silicone-containing hydrophilic monomers; (b) one or more hydrophobic monomers; and (c) a crosslinking agent mixture comprising (i) one or more di-, tri- or tetra(meth)acrylate-containing crosslinking agents and (ii) one or more di-, tri- or tetracarbamate-containing crosslinking agents, wherein the ophthalmic device has an equilibrium water content of at least about 65 weight percent.