Abstract:
Methods and materials for preparing organic semiconducting layers include, for example, one used in an organic semiconductor device including a substrate with a nanostructured surface and an organic semiconductor film overlying the nanostructured surface. The semiconductor film is typically formed from macroscopically ordered polymer fibers made from selected conjugate polymer compounds. Such polymer fibers synthesized from selected conjugated polymer compounds and directionally aligned in organic semiconductor devices can provide these devices improved functional properties, including for example, unexpectedly high field effect saturation mobilities.
Abstract:
Embodiments of the invention include methods and materials for preparing organic semiconducting layers, for example one used in an organic semiconductor device including a substrate with a nanostructured surface and an organic semiconductor film overlying the nanostructured surface. The semiconductor film is typically formed from macroscopically ordered polymer fibers made from selected conjugate polymer compounds. Such polymer fibers synthesized from selected conjugated polymer compounds and directionally aligned in organic semiconductor devices can provide these devices improved functional properties, including for example, unexpectedly high field effect saturation mobilities.
Abstract:
A method of regioselectively preparing a pyridine-containing compound is provided. In particular embodiments, the method includes reacting halogen-functionalized pyridal[2,1,3]thiadiazole with organotin-functionalized cyclopenta[2,1- b :3,4- b '] 'dithiophene or organotin-functionalized indaceno[1,2-b:5,6-b']dithiophene. Also provided is a method of preparing a polymer. The method includes regioselectively preparing a monomer that includes a pyridal[2,1,3]thiadiazole unit; and reacting the monomer to produce a polymer that includes a regioregular conjugated backbone section, wherein the section includes a repeat unit containing the pyridal[2,1,3]thiadiazole unit. A polymer that includes a regioregular conjugated backbone section, and electronic devices that include the polymer, are also provided.
Abstract:
Thermoplastic polyester compositions, comprising: (a) 54-98% by weight of at least one polytrimethylene terephthalate; (b) 1-45% by weight of at least one impact modifier, and the at least one impact modifier is selected from ethylene copolymers having a general formula of E/X/Y, wherein: E is a radical derived from ethylene and accounts for 40-90% by weight of the total weight of the ethylene copolymer; X accounts for 9-55% by weight of the total weight of the ethylene copolymer and is a radical derived from a monomer having the following general formula: (I) wherein, R1 is an alkyl containing 2-8 carbon atoms; R2 is H, CH3 or C2H5; Y is a radical derived from a monomer unit selected from glycidyl methacrylates and glycidyl acrylates and accounts for 0.5-40% by weight of the total weight of the ethylene copolymer; and (c) 0.01-3.0% by weight of a cationic catalyst, and the cation is selected from the group consisting of Mg2+, Sn2+, and Zn2+ and mixtures of these. Also provided are articles made from the thermoplastic polyester compositions.
Abstract:
Thermoplastic polyester compositions, comprising: (a) 54-98% by weight of at least one polytrimethylene terephthalate; (b) 1-45% by weight of at least one impact modifier, and the at least one impact modifier is selected from ethylene copolymers having a general formula of E/X/Y, wherein: E is a radical derived from ethylene and accounts for 40-90% by weight of the total weight of the ethylene copolymer; X accounts for 9-55% by weight of the total weight of the ethylene copolymer and is a radical derived from a monomer having the following general formula: (I) wherein, R 1 is an alkyl containing 2-8 carbon atoms; R 2 is H, CH 3 or C 2 H 5 ; Y is a radical derived from a monomer unit selected from glycidyl methacrylates and glycidyl acrylates and accounts for 0.5-40% by weight of the total weight of the ethylene copolymer; and (c) 0.01-3.0% by weight of a cationic catalyst, and the cation is selected from the group consisting of Mg 2+ , Sn 2+ , and Zn 2+ and mixtures of these. Also provided are articles made from the thermoplastic polyester compositions.
Abstract:
A polyolefin composition is foamed by a process in which a nucleator is used, and the nucleator comprises 80% or more of unagglomerated fluororesin particles and/or agglomerates of fluororesin particles in which both the unagglomerated particles and the agglomerates are less than 1 μm in size.
Abstract:
The present disclosure provides a wire or cable comprising a flame retardant-free thermoplastic inner sheath and an outer sheath composition comprising, based on the weight of the composition, (a) 10 wt% to 90 wt% of a TPU based resin, (b) 5 wt% to 90 wt% of a metal hydrate, (c) 2 wt% to 50 wt% of a nitrogen-based phosphorus flame retardant, and (d) 2 wt% to 50 wt% liquid phosphate modifier, wherein the outer sheath is in contact with the insulation covering, and wherein the outer sheath has a thickness from greater than zero to 0.8mm.
Abstract:
Disclosed is a solventless adhesive composition comprising (A) an isocyanate component obtained by the reaction of reactants comprising at least one monomeric C2-C16 isocyanate compound and at least one first polyol; and (B) a polyol component comprising a silane coupling agent and particularly selected polyol(s). The solventless adhesive composition can be used for the production of laminate materials, e.g. exterior roofing laminate material, which well meets the requirements of various compliance regulations and has superior performance properties such as bond strength, weathering resistance, yellowing resistance, cracking resistance, delamination resistance, and the like. A method for producing said laminate material and the resultant laminate material are also disclosed.
Abstract:
An adhesive composition is provided. The adhesive composition for zipper bag application, comprising the following components: (a) a mixture of a polyurethane dispersion with acrylic emulsion, wherein the polyurethane dispersion comprises a reaction product of by dry weight based on total dry weight of the polyurethane dispersion, from 30% to 50% of a monomeric diisocyanate, from 45% to 69%of a polymeric polyol and from 1% to 15% of ionic surfactant, the polyurethane dispersion has a Tg of -15℃ to 15℃, and the acrylic emulsion has a Tg of -10℃ to 25℃, and wherein the ratio by weight of the polyurethane dispersion and the acrylic emulsion is from 15: 85 to 85: 15, (b) a polyisocyanate.
Abstract:
A method of regioselectively preparing a pyridine-containing compound is provided. In particular embodiments, the method includes reacting halogen-functionalized pyridal[2,1,3]thiadiazole with organotin-functionalized cyclopenta[2,1-b:3,4-b'] 'dithiophene or organotin-functionalized indaceno[1,2-b:5,6-b']dithiophene. Also provided is a method of preparing a polymer. The method includes regioselectively preparing a monomer that includes a pyridal[2,1,3]thiadiazole unit; and reacting the monomer to produce a polymer that includes a regioregular conjugated backbone section, wherein the section includes a repeat unit containing the pyridal[2,1,3]thiadiazole unit. A polymer that includes a regioregular conjugated backbone section, and electronic devices that include the polymer, are also provided.