Topic
Polycarbonate
About: Polycarbonate is a research topic. Over the lifetime, 14032 publications have been published within this topic receiving 141740 citations. The topic is also known as: PC & Polycarbonate, PC.
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TL;DR: In this article, the effects of physical aging on the kinetics of yielding in polycarbonate were investigated, and both tensile and compressive tests were performed over various loading rates and temperatures.
37 citations
Patent•
06 Oct 2004
TL;DR: In this article, a polycarbonate resin laminate for a liquid crystal display cover is proposed, which is a laminate of 0.5-1.2 mm total thickness in which an acrylic resin layer of 50-120 μm thickness is laminated to one surface of a poly carbonate resin layer by coextruding, and a hard coat processing is performed on the acrylic resin resin layer, and the surface in which the acrylic resin is not co-extruded is used for the liquid crystal side.
Abstract: PROBLEM TO BE SOLVED: To provide a polycarbonate resin laminate for a crystal display cover which is excellent in surface hardness, impact resistance, and punching workability and especially has high pencil hardness not attained in a common polycarbonate resin plate. SOLUTION: The polycarbonate resin laminate for a liquid crystal display cover is a laminate of 0.5-1.2 mm total thickness in which an acrylic resin layer of 50-120 μm thickness is laminated to one surface of a polycarbonate resin layer by coextruding, and a hard coat processing is performed on the acrylic resin layer, and the surface in which the acrylic resin is not coextruded is used for a liquid crystal side. COPYRIGHT: (C)2006,JPO&NCIPI
37 citations
TL;DR: In this paper, an electrochemical synthesis of a conducting composite of polyaniline was described, where poly(bisphenol A carbonate) was used as the insulating polymer matrix.
37 citations
Patent•
28 Apr 2014
TL;DR: In this article, a railway component comprises a polycarbonate composition comprising: a first poly-carbonate selected from a linear poly-polycarbonate homopolymer, a branched poly-corpus, a poly(carbonate-bisphenol arylate ester), or a combination thereof; a second polymer different from the first poly carbonate, the second polymer comprising a poly-siloxane copolymer, polydialkylsiloxane, or a silicone graft copolymers, where siloxane units in the second poly
Abstract: A railway component comprises a polycarbonate composition comprising: a first polycarbonate selected from a linear polycarbonate homopolymer, a branched polycarbonate, a poly(carbonate-bisphenol arylate ester), a poly(aliphatic ester-carbonate), or a combination thereof; a second polymer different from the first polycarbonate, the second polymer comprising a poly(carbonate-siloxane) copolymer, a polydialkylsiloxane, a silicone graft copolymer, or a combination thereof, wherein siloxane units in the second polymer are present in an amount of 0.3 to 3 wt. %, based on the total weight of the composition; and 10 to 40 wt. % of glass fiber, based on the total weight of the polycarbonate composition.
37 citations
Journal Article•
TL;DR: In this article, the authors deal with the determination of the main characteristics and the assignment of the molecular motions leading to the solid-state transitions observed in amorphous polymers at temperatures lower than the glass-rubber transition.
Abstract: This paper deals with the determination of the main characteristics and the assignment of the molecular motions leading to the solid-state transitions observed in amorphous polymers at temperatures lower than the glass-rubber transition. First, the specific features of these secondary transitions (β, y, δ,...) are briefly described. Then, the behaviour of various polymer systems is analysed: poly(cycloalkyl methacrylates) and their intracycle motions, poly(ethylene tere-phthalate) and bisphenol A polycarbonate β transition and the effect of small molecule antiplasticisers, aryl-alkyl polyamide transitions, the β transition of poly(methyl methacrylate) and its maleimide as well as glutarimide random copolymers. Additionally linear polymers, aryl-aliphatic epoxy systems, with or without antiplasticisers, illustrate the case of crosslinked amorphous polymers. Whereas all the systems considered were investigated by dynamic mechanical measurements and 13 C solid-state nuclear magnetic resonance experiments, some systems were also studied by other techniques such as dielectric relaxation and molecular modelling. Poly(methyl methacrylate) and bisphenol A polycarbonate constitute the best examples of the level of description of the molecular motions involved in the β transition and, in particular, the nature and extent of the cooperativity which develops in the high-temperature part of the transition. This is achieved by combining all the experimental and modelling techniques presently available.
37 citations