Abstract:
A compound of formula (I), formula (II), or a combination thereof, and salts thereof is described. Each A may be independently an optionally substituted conjugated species or an optionally substituted aromatic species. Each R may be independently an optionally substituted C1-C40 linear alkyl chain, an optionally substituted branched alkyl chain, an optionally substituted alkyl chain containing heteroatoms, substituted alkyl chains, or H. Each R2 may be independently an optionally substituted C1-C40 linear alkyl chain, an optionally substituted branched alkyl chain, an optionally substituted alkyl chain containing heteroatoms, substituted alkyl chains, H, or part of a cyclic boronate ester with an other R2. Each n may be independently less than or equal to 3 and greater than or equal to 1. Each x may be independently less than or equal to 3.
Abstract:
Articles utilizing polymeric dielectric materials for gate dielectrics and insulator materials are provided along with methods for making the articles. The articles are useful in electronics-based devices that utilize organic thin film transistors.
Abstract:
An optical fiber coating composition is provided. The optical fiber coating composition includes a radiation-curable component, a photoinitiator, and an acrylic polymer having at least one benzophenone group.
Abstract:
An optical fiber coating composition that includes an acrylic copolymer. The acrylic copolymer is a block copolymer that includes two or more acrylic blocks. The two or more acrylic blocks differ in glass transition temperature (Tg). The acrylic copolymer may include an acrylic block with a Tg above 50° C. and an acrylic block with a Tg below 0° C. Representative monomers from which the repeat units of the acrylic blocks are derived include alkyl(meth)acrylates. In one embodiment, the acrylic copolymer includes an acrylic block with repeat units derived from methylmethacrylate and an acrylic block derived from butylacrylate. The acrylic copolymer lacks urethane groups, lacks urea groups, lacks radiation-curable groups, and is otherwise unreactive with other components in the coating composition. The acrylic copolymer features high solubility in common acrylate-based radiation-curable coating compositions and can be provided at high concentrations in acrylate-based coating compositions.
Abstract:
A compound of formula (I), formula (II), or a combination thereof, and salts thereof is described. Each A may be independently an optionally substituted conjugated species or an optionally substituted aromatic species. Each R may be independently an optionally substituted C1-C40 linear alkyl chain, an optionally substituted branched alkyl chain, an optionally substituted alkyl chain containing heteroatoms, substituted alkyl chains, or H. Each R2 may be independently an optionally substituted C1-C40 linear alkyl chain, an optionally substituted branched alkyl chain, an optionally substituted alkyl chain containing heteroatoms, substituted alkyl chains, H, or part of a cyclic boronate ester with an other R2. Each n may be independently less than or equal to 3 and greater than or equal to 1. Each x may be independently less than or equal to 3.
Abstract:
A compound of formula (I), formula (II), or a combination thereof, and salts thereof is described. Each A may be independently an optionally substituted conjugated species or an optionally substituted aromatic species. Each R may be independently an optionally substituted C1-C40 linear alkyl chain, an optionally substituted branched alkyl chain, an optionally substituted alkyl chain containing heteroatoms, substituted alkyl chains, or H. Each R2 may be independently an optionally substituted C1-C40 linear alkyl chain, an optionally substituted branched alkyl chain, an optionally substituted alkyl chain containing heteroatoms, substituted alkyl chains, H, or part of a cyclic boronate ester with an other R2. Each n may be independently less than or equal to 3 and greater than or equal to 1. Each x may be independently less than or equal to 3.