A resin having a small linear thermal expansion coefficient and a low absorbance is provided. The resin is characterized by including at least one structure selected from structures represented by the following general formulae (1) and (2): ##STR00001##

A resin having a small linear thermal expansion coefficient and a low absorbance is provided. The resin is characterized by including at least one structure selected from structures represented by the following general formulae (1) and (2): ##STR00001##

The embodiments relate to a polyamide-based composite film that has excellent curl characteristics, mechanical properties, and optical properties, as well as, in particular, is effective in preventing reflection in the visible light region, remarkably reduces the rainbow phenomenon, and achieves a texture similar to that of glass, and a display device comprising the same. There are provided a polyamide-based composite film, which comprises a base film comprising a polyamide-based polymer; and a functional layer disposed on the base film, wherein the in-plane retardation (Re) measured with light having a wavelength of 550 nm is 100 nm to 220 nm, and a display device comprising the same.

A polyimide film with improved dielectric and mechanical properties includes a polyimide layer with a liquid crystal structure which incorporates liquid crystal polymer powder. The polyimide layer is formed by a condensation reaction applied to dianhydride and diamine monomers, at least one of the dianhydride monomer and the diamine monomer having the liquid crystal structure. A method for manufacturing the polyimide film is also disclosed.

A polyimide film with improved dielectric and mechanical properties includes a polyimide layer with a liquid crystal structure which incorporates liquid crystal polymer powder. The polyimide layer is formed by a condensation reaction applied to dianhydride and diamine monomers, at least one of the dianhydride monomer and the diamine monomer having the liquid crystal structure. A method for manufacturing the polyimide film is also disclosed.

The present invention relates to a polyamide resin in which an average particle size of individual crystals measured by a small-angle X-ray scattering apparatus is 8.0 nm or less, and a polymer film and resin laminate using the same.

A liquid crystal polymer composition for a copper substrate with low dielectric constant and low dielectric loss suitable for use in printed circuit boards includes a solvent, a soluble liquid crystal polymer dissolved in the solvent, and a liquid crystal polymer powder dispersed in the solvent. The soluble LCP and the LCP powder form a solid content in the LCP composition. A mass ratio of the soluble LCP in the solid content of the LCP composition is in a range from 40% to 60%, and a mass ratio of the LCP powder in the solid content of the LCP composition is in a range from 40% to 60%.

Provided are aromatic oligoamide foldamers and self-assembled compositions of the same. The aromatic oligoamide foldamers and compositions can form tube-like structures that can form pores in membranes. The pores can be used to transport ions and molecules, such as, for example, cryoprotective agents or therapeutic agents, through the membrane. The tube-like structures exhibit desirable stability at low temperatures.

Provided are a polyamide having a structural unit represented by General Formula [1], and the like. In General Formula [1], R.sup.1 is a divalent organic group represented by General Formula [2], and R.sup.2 is a divalent organic group. In General Formula [2], n.sub.1 and n.sub.2 are each independently an integer of 0 to 4, and in a case where a plurality of R.sup.3's are present, the plurality of R.sup.3's each independently represent a monovalent substituent.

Provided are a polyamide having a structural unit represented by General Formula [1], and the like. In General Formula [1], R.sup.1 is a divalent organic group represented by General Formula [2], and R.sup.2 is a divalent organic group. In General Formula [2], n.sub.1 and n.sub.2 are each independently an integer of 0 to 4, and in a case where a plurality of R.sup.3's are present, the plurality of R.sup.3's each independently represent a monovalent substituent.