摘要:
Disclosed is a microwave preparation method for producing polymeric nanoparticles in which a mixture is made that contains a monomer, an optional functionalize co-monomer, a polymerization initiator that is activated by microwave irradiation, a cross-linker that preferentially creates intra-particle cross-links during polymerization, and a water-based solvent which is then irradiated with microwave radiation to facilitate polymerization of the nanoparticles into sub-50 nm size range nanoparticles.
摘要:
A data storage system includes a read/write head having a tip connected to a resistive path locally exerting heat at the tip when an electrical current is applied; and a data storage medium from which information is reproduced by scanning a surface of the medium with a tip positioned in contact therewith, the medium comprising: a substrate; and a polymer recording surface within which data bit values are determined by the topographical state at the bit location, characterized in that the polymer contains thermally reversible crosslinkages.
摘要:
A slider assembly is provided comprising a plurality of sliders bonded by a debondable solid encapsulant. The solid encapsulant is comprised of a polymer prepared by polymerizing a mixture of first and second monomers in a nonstoichiometric ratio effective to render the encapsulant debondable. Each slider has a surface that is free from the encapsulant. The encapsulant-free surfaces are coplanar to each other. Also provided are methods for forming the assembly and methods for patterning a slider surface using the encapsulant.
摘要:
An approach is presented for designing the polymeric recording layer for nanometer scale thermomechanical storage devices. Cross linked polymers are used as the recording layers in atomic force microscopy data storage devices, giving significantly improved performance when compared to the previously reported linear polymers. This results in superior wear resistance and enhanced erasing, critical features for the long-term multiple read-write cycles of such thermomechanical storage devices. In addition, this ability to introduce a predetermined extent of cross linking allows fine tuning of the thermal and force parameters in the R/W/E (read-write-erase) cycles.
摘要翻译:提出了一种用于设计纳米级热机械储存装置的聚合物记录层的方法。 交联聚合物用作原子力显微镜数据存储装置中的记录层,与先前报道的线性聚合物相比,显着提高了性能。 这导致了这种热机械储存装置的长期多次读写周期的优异的耐磨性和增强的擦除,关键特征。 此外,引入预定程度的交联的这种能力允许在R / W / E(读写擦除)周期中微调热和力参数。
摘要:
A process for producing bi-continuous morphologies in polymer melts and solids, wherein two distinct domains or phases percolate and macroscopically connect throughout the composition. The process proceeds by simply mixing the components in a common solvent and casting a film by slow removal of the solvent. Bulk materials can be produced by mixing the components in an extruder, compounder, or other specialized equipment for processing molten polymers, and forming into a pellet, fiber, film, sheet, or molded part. The invention allows the production of materials with unique or unusual combinations of transparency, high electronic or ionic conductivity, high vapor transport rates, and/or high absorption rates of moisture or vapors . Particles used in the present invention are 5-10 nm to yield a scale of the bi-continuous structures of 10-50 nm. The materials can be produced in bulk form, or in films 1-100 microns thick.
摘要:
An encapsulant fluid is provided comprising a mixture of a diene-containing compound and a dienophilic compound. At least one of the diene-containing and the dienophilic compounds is protected so that the compounds do not substantially react with each other at room temperature. The diene-containing and the dienophilic compounds undergo a reversible Diels-Alder polymerization reaction at a polymerization temperature above room temperature to form a solid debondable polymeric encapsulant. Also provided are methods for forming slider assemblies and methods for patterning a slider surface using the encapsulant.
摘要:
A data storage system includes a read/write head having a tip connected to a resistive path locally exerting heat at the tip when an electrical current is applied; and a data storage medium from which information is reproduced by scanning a surface of the medium with a tip positioned in contact therewith, the medium comprising: a substrate; and a polymer recording surface within which data bit values are determined by the topographical state at the bit location, characterized in that the polymer contains thermally reversible crosslinkages.
摘要:
Crosslinked particles are provided that are useful in the manufacture of dielectric materials for use in electronic devices such as integrated circuits. The crosslinked particles are prepared by activating crosslinkable groups on synthetic polymer molecules, where the crosslinkable groups are inert until activated and, when activated, undergo an irreversible intramolecular crosslinking reaction to form crosslinked particles.
摘要:
A data storage medium from which information is reproduced by scanning a surface of the medium with a probe-based tip, such as an Atomic Force Microscope (AFM) tip positioned in contact therewith. The medium comprises a substrate; and a polymer recording surface within which data bit values are determined by the topographical state at the bit location. The polymer contains thermally reversible crosslinkages. The data bit value is a function of the depth of the pit at the bit location.
摘要:
A method reading, writing, and erasing data includes bringing a thermal-mechanical probe into proximity with a layer of cross-linked polymeric material to induce a deformed region at a point in the film, thereby writing information; bringing a thermal-mechanical probe into proximity with the deformed region, thereby reading information; and bringing a thermal-mechanical probe into proximity with the deformed region, further deforming it in such a way to eliminate the deformed region, thereby erasing the information; and repeating the storing, reading, and erasing steps at points in the film.