摘要:
Reactive monomers containing the trifluorovinyloxy group may be copolymerized to form polymers useful as membranes, especially polymer electrolyte membranes for fuel cells. The monomers have the formula ((CF2CFO(R1)p)nArX2 wherein Ar is a trivalent, tetravalent or pentavalent, substituted or unsubstituted, aromatic or heteroaromatic, monocyclic or polycyclic group having from 5 to 50 carbon atoms; X is OH, SH, NR2aR2b, F or Br; p is 0 or 1; n is 1, 2 or 3; R1 is substituted or unsubstituted phenyl and R2a and R2b are independently H, C1-C8 alkyl or C1-C8 perfluoroalkyl.
摘要翻译:含有三氟乙烯基氧基的反应性单体可以共聚以形成可用作膜的聚合物,特别是用于燃料电池的聚合物电解质膜。 这些单体具有式((CF 2)CFO(R 1))N 2 Ar 2 其中Ar是具有5至50个碳原子的三价,四价或五价,取代或未取代的芳族或杂芳族单环或多环基团; X是OH,SH,NR 2a R F或Br; p为0或1; n为1,2或3; R 1为取代或未取代的苯基且R 2a为H 2 O >和R 2b独立地为H,C 1 -C 8烷基或C 1 -C 3 - 8 u>全氟烷基。
摘要:
Disclosed are a holographic storage medium, a method for producing a holographic storage medium, a method for storing data on a holographic storage medium, and an optical reading method. The holographic storage medium comprises an dimensionally stable film that is formed by partially curing a mixture, wherein said mixture comprises (a) a binder material; (b) a curable photoactive material; (c) an optional sensitizer; and (d) a photoinitiator, and wherein at least a portion of the photoactive material remains unreacted after the forming. Articles comprising holographic storage media in various forms are also disclosed.
摘要:
The present invention provides a method for storing holographic data comprising providing an optically transparent substrate comprising a photochemically active dye and a photo-acid generator; irradiating the optically transparent substrate with a holographic interference pattern, wherein the pattern has a first wavelength and an intensity both sufficient to convert, within a volume element of the substrate, at least some of the photochemically active dye into a photo-product, producing within the irradiated volume element concentration variations of the photo-product corresponding to the holographic interference pattern, thereby producing a first optically readable datum corresponding to the volume element; and irradiating the optically transparent substrate at a second wavelength and intensity sufficient to activate the photo-acid generator to stabilize the optically readable datum.
摘要:
Disclosed herein is a method of manufacturing a data storage media comprising mixing a photochromic dye with an organic material or an inorganic material to form a holographic composition; and molding the holographic composition into holographic data storage media. Disclosed herein too is an article comprising a photochromic dye and an organic material, wherein the article is used as a data storage media. Disclosed herein too is a method for recording information comprising irradiating an article that comprises a photochromic dye; wherein the irradiation is conducted with electromagnetic energy having a wavelength of about 350 to about 1,100 nanometers; and reacting the photochromic dye.
摘要:
A method is explained that allows for a via to be filled with a dispensed material while the substrate is in continuous movement. A device is described that allows for a via to be filled while the target substrate is in continuous movement. The device consists of a material jetting system, a machine vision system that can detect the optimum trigger point, an electronic control circuit, a feedback mechanism and a web handling provision.
摘要:
A method of storing holographic data is provided. The method includes providing an optically transparent substrate comprising a photochemically active dye and a singlet-oxygen generator, irradiating the optically transparent substrate with a holographic interference pattern, wherein the pattern has a first wavelength and an intensity both sufficient to convert, within a volume element of the substrate, at least some of the photochemically active dye into a photo-product, and producing within the irradiated volume element concentration variations of the photo-product corresponding to the holographic interference pattern, thereby producing an optically readable datum corresponding to the volume element, and activating the optically transparent substrate to generate singlet oxygen to stabilize the optically readable datum.
摘要:
The present invention provides a nucleic acid polyhedron having a moiety associated therewith together with methods of making the nucleic acid polyhedron.
摘要:
A tamper detection system is described as including at least one optical energy transmitter and a material for transmitting optical energy from the at least one optical energy transmitter. The system further includes at least one support structure adjacent the energy transmitting layer and at least one detector for detecting a change in energy distribution within the material. Also described is a container utilizing the system.
摘要:
A method of making a holographic data storage medium is provided. The method comprises: (a) providing an optically transparent substrate comprising at least one photochemically active dye; and (b) irradiating the optically transparent substrate at at least one wavelength at which the optically transparent substrate has an absorbance in a range from about 0.1 to 1, to produce a modified optically transparent substrate comprising at least one optically readable datum and at least one photo-product of the photochemically active dye. The at least one wavelength is in a range from about 300 nanometers to about 800 nanometers. The optically transparent substrate is at least 100 micrometers thick, and comprises the photochemically active dye in an amount corresponding to from about 0.1 to about 10 weight percent based on a total weight of the optically transparent substrate.
摘要:
A method of making a holographic data storage medium is provided. The method comprises: (a) providing an optically transparent substrate comprising at least one photochemically active dye; and (b) irradiating the optically transparent substrate at least one wavelength at which the optically transparent substrate has an absorbance in a range from about 0.1 to 1, to produce a modified optically transparent substrate comprising at least one optically readable datum and at least one photo-product of the photochemically active dye. The at least one wavelength is in a range from about 300 nanometers to about 800 nanometers. The optically transparent substrate is at least 100 micrometers thick, and comprises the photochemically active dye in an amount corresponding to from about 0.1 to about 10 weight percent based on a total weight of the optically transparent substrate.