A method of fabricating polypyrrole-coated silver particles having a core-shell structure via in-situ oxidative polymerization using silver nanoparticles and pyrrole monomers in the presence of an oxidizing agent. A surface enhanced Raman scattering (SERS) active substrate comprising the polypyrrole-coated silver particles is also disclosed. The surface enhanced Raman scattering (SERS) active substrate is demonstrated to facilitate the detection and measurement of surface enhanced Raman scattering (SERS) spectra of analytes with increased Raman signal intensity.

The present invention relates to nanoparticle compositions and, in particular, to composite polymeric nanoparticle compositions. A composite nanoparticle described herein comprises a photoluminescent polymeric component and a photo-thermal polymeric component. The photoluminescent polymeric component and the photo-thermal polymeric component can each comprise a single polymeric species or multiple polymeric species.

Provided is a film for a capacitor that can improve dielectric strength retention at high temperatures and can also improve metal vapor deposition properties and formability. The film for a capacitor contains a hydrogenated dicyclopentadiene ring-opened polymer that is crystalline and has a heat shrinkage ratio of not less than 0.01% and not more than 1.0% when heated at 200 C. for 10 minutes, a plane orientation factor of 0.01 or more, a density of 1.0310.sup.6 g/m.sup.3 or more, and a thickness of 15.0 m or less.

Aspects of the present disclosure generally describe polyarylether ketones and methods of use. In some aspects, a composition includes one or more polymers of formulae (I), (II), or (III): ##STR00001## ##STR00002##

An article is prepared by injection molding, wherein the article is formed from a hydrophilic thermoplastic polyurethane composition, wherein the thermoplastic polyurethane composition comprises the reaction product of a hydroxyl terminated polyol intermediate component, an aliphatic isocyanate component, and, optionally, a chain extender component. For injection molding, the hydrophilic thermoplastic polyurethane has a crystallization temperature measured by dynamic scanning calorimetry of at least 75 C.

An article is prepared by injection molding, wherein the article is formed from a hydrophilic thermoplastic polyurethane composition, wherein the thermoplastic polyurethane composition comprises the reaction product of a hydroxyl terminated polyol intermediate component, an aliphatic isocyanate component, and, optionally, a chain extender component. For injection molding, the hydrophilic thermoplastic polyurethane has a crystallization temperature measured by dynamic scanning calorimetry of at least 75? C.

A conducting polymer which may have one redox couple and/or enhanced redox capacity. The polymer is a copolymer prepared by electropolymerizing a mixture of monomers.

A conducting polymer which may have one redox couple and/or enhanced redox capacity. The polymer is a copolymer prepared by electropolymerizing a mixture of monomers.

Aspects of the present disclosure generally describe polyarylether ketones and methods of use. In some aspects, a composition includes one or more polymers of formulae (I), (II), or (III):

##STR00001## ##STR00002##

Aspects of the present disclosure generally describe polyarylether ketones and methods of use. In some aspects, a composition includes one or more polymers of formulae (I), (II), or (III): ##STR00001##