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  • 1
    Online Resource
    Online Resource
    Progress in Polyimide Chemistry II. (1998)
    Berlin, Heidelberg :Springer Berlin / Heidelberg,
    Details
    Keywords: Chemistry. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (267 pages)
    Edition: 1st ed.
    ISBN: 9783540498148
    Series Statement: Advances in Polymer Science Series ; v.141
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=6494990
    DDC: 541.2254
    Language: English
    Note: Intro -- Progress in Polyimide Chemistry II -- Volume Editor -- Editorial Board -- Preface -- Contents -- Contents of Volume 140 -- Nanoporous Polyimides -- Introduction -- Criteria for High Temperature Polymer Continuous Phase -- Criteria for the Thermally Labile Coblock -- Synthesis and Characterization of Polyimide Copolymers -- Thin Film Processing Conditions -- Block Copolymer Morphology -- Foam Formation -- Porosity Determination -- Polyimide Nanofoam Morphology -- Properties of Polyimide Nanofoams -- Manipulation of Porosity Content -- Conclusions -- References -- Poly(ester-imide)s for Industrial Use -- Introduction -- History -- Saturated Poly(ester-imide)s for Wire Enamels -- Monomers -- Synthesis -- Wire Enamel Formulations -- Conventional Enameling of Poly(ester-imide) Wire Enamels -- New Enameling Technologies -- Other Poly(ester-imide) Wire Enamels -- Unsaturated Poly(ester-imide)s -- Imide Modified Alkyd Resins -- Imide Modified Coatings -- Thermoplastic Poly(ester-imide)s -- Other Application Areas -- Conclusions and Outlook -- References -- Liquid-Crystalline Polyimides -- Introduction -- Stereochemistry of Aromatic Imides -- Aromatic Poly(ester-imide)s (PEIs) -- Symmetrical Imide Building Blocks -- Non-Symmetrical Imide Building Blocks -- Poly(ester-imide)s Containing Aliphatic Spacers -- Short Symmetrical Imide Mesogens -- Long Symmetrical Imide Mesogens -- Non-Symmetrical Imide Mesogens -- Cholesteric Poly(ester-imide)s -- Chiral "Sulfide Spacers" -- Sugar Diols as Chiral Building Blocks -- Chiral Terephthalic Acids -- Various LC-Polyimides -- Characterization of Layer Structures -- General Considerations -- Problems and Experimental Results -- References -- Calculation of a Mesogenic Index with Emphasis Upon LC-Polyimides -- Introduction -- Review of LCPs Containing Imide Groups. , Poly(esterimide)s (PEIs) with Aliphatic Spacers -- Wholly Rigid Aromatic PEIs -- Poly(amide-imide)s -- Polyimides -- Poly(etherimide)s -- Structure and Theoretical Aspects of Main-Chain LCPs -- Effects of Chemical Structure on Liquid Crystallinity -- Theoretical Aspects of Main-Chain LCPs -- Prediction of Mesophases in Copolymers -- The Mesogenic Index (MI) -- Individual Group Contributions -- Determination of Critical MI Values -- Polyesters, Polyamides, Poly(esteramide)s -- Polycarbonates -- Polyimides and Polyetherimides -- Application of MI to Copolymers Containing Imide Groups -- Copoly(etherimide)s -- Copoly(amide-imide)s -- Copoly(esterimide)s (PEIs) -- PEIs Based on Trimellitic Anhydride -- Polyesterimides Based on Imide Diphenol -- PEIs Derived from Pyromellitic Anhydride -- PEIs Based on Linked Biphenyltetracarboxylimide -- PEIs Containing Bisphenyl Tetra-imide.(BPTA) -- PEIs from N-(4-Carboxyphenyl) 4-Nitrophthalimide -- Copoly(imide-carbonates) -- References -- Author Index Volumes 101-141 -- Subject Index.
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  • 2
    Electronic Resource
    Electronic Resource
    Experimental study of the surface structure of diblock copolymer films using microscopy and x-ray scattering (1993)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 98 (1993), S. 2376-2386 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The surface structure of a model system was measured in real space by atomic force and optical microscopies, and compared with that obtained from measurements in reciprocal space by x-ray reflectivity and off-specular scattering at grazing incidence. Experiments were performed on films of symmetric diblock copolymers of polystyrene and polymethylmethacrylate, whose surfaces were covered by micrometer-size islands or holes (domains) of uniform height. The correlation functions extracted from the images of the film surfaces show weak peaks in the real-space domain distribution. The corresponding structures were also found in reciprocal space. The height of the domains obtained from the scattering measurements was found to be in excellent agreement with that obtained by atomic force microscopy. We developed a formalism using the kinematical approximation for the analysis of the x-ray-scattering measurements. We used a multilayer film model with roughness at each interface and relief domains at the surface. We extracted the domain–domain correlation functions for the x-ray-scattering analysis from the atomic force and optical microscopy images.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.464165
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  • 3
    Electronic Resource
    Electronic Resource
    All-optical technique for measuring thermal properties of materials at static high pressure (2000)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 71 (2000), S. 3846-3852 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The development and implementation of an all-optical technique for measuring thermal transport properties of materials at high pressure in a gem anvil cell are reported. Thermal transport properties are determined by propagating a thermal wave in a material subjected to high pressures, and measuring the temperature as a function of time using an optical sensor embedded downstream in the material. Optical beams are used to deposit energy and to measure the sensor temperature and replace the resistive heat source and the thermocouples of previous methods. This overcomes the problems introduced with pressure-induced resistance changes and the spatial limitations inherent in previous high-pressure experimentation. Consistent with the heat conduction equation, the material's specific heat, thermal conductivity, and thermal diffusivity (κ) determine the sensor's temperature rise and its temporal profile. The all-optical technique described focuses on room-temperature thermal properties but can easily be applied to a wide temperature range (77–600 K). Measurements of thermal transport properties at pressure up to 2.0 GPa are reported, although extension to much higher pressures are feasible. The thermal properties of NaCl, a commonly used material for high-pressure experiments are measured and shown to be consistent with those obtained using the traditional methods.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1286309
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  • 4
    Electronic Resource
    Electronic Resource
    A high pressure optical cell utilizing single crystal cubic zirconia anvil windows (1997)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 68 (1997), S. 1835-1840 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A high pressure optical cell capable of producing pressures up to 13.2 GPa using gem-cut single crystal cubic zirconia (CZ) anvils was developed. Maximum pressures obtainable were found to depend upon the particular pressure transmitting medium and gasket material employed. The cubic zirconia anvil high pressure cell (CZAC) provides advantages over the diamond anvil cell in optical and infrared spectroscopy while still maintaining a substantial pressure capability. To demonstrate these advantages, microRaman, optical fluorescence, and infrared absorption measurements were made on diamond, ruby, and 1,3,5-trinitrohexahydro-1,3,5-triazine samples, respectively, using the CZAC cell under high pressure conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1147955
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  • 5
    Electronic Resource
    Electronic Resource
    Rheooptical investigation of the transition behavior of polyphosphazenes (1984)
    s.l. : American Chemical Society
    Macromolecules 17 (1984), S. 1795-1799 
    Details
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ma00139a029
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  • 6
    Electronic Resource
    Electronic Resource
    Underwater shock measurements using a ruby pressure gauge (2000)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 77 (2000), S. 684-686 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The measurement of the temporal profile of the pressure in a shock wave propagating underwater and interacting with a nearby metal plate is presented. Pressures are deduced from the time-resolved fluorescence of a submillimeter ruby crystal mounted on an optical fiber tip. The measured pressures agree with finite-element code predictions, which model the production and propagation of the shock wave. These measurements are useful to evaluate shock-induced phenomena that are strongly dependent on the temporal profile of a shock wave, in small-scale testing, and in substantiating finite-element code predictions. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.127085
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  • 7
    Electronic Resource
    Electronic Resource
    Temperature measurements of a thermal wave at static high pressures (2000)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 76 (2000), S. 2460-2462 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Experiments probing the dynamics of a thermal wave in a material compressed at static high pressures are presented. The method involves launching a thermal wave in a sample compressed in an anvil cell and monitoring the temporal profile of temperature at a fixed point downstream. A pulsed laser incident on a metal foil provides the thermal wave, while fluorescence from a small ruby sphere yields the time-resolved temperature. Results from compressed NaCl show that temperature rises quickly and decays much more slowly, consistent with the expected heat flow. This temporal profile evaluated with a numerical solution of the heat-conduction equation or an analytical approximation provides values for thermal conductivity, thermal diffusivity, and heat capacity at pressures to 1.7 GPa. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.126376
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  • 8
    Electronic Resource
    Electronic Resource
    High-pressure phase transition in .gamma.-hexanitrohexaazaisowurtzitane (1992)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 96 (1992), S. 5509-5512 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100192a060
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  • 9
    Electronic Resource
    Electronic Resource
    Pressure/temperature phase diagram of hexanitrohexaazaisowurtzitane (1993)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 97 (1993), S. 1993-1997 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100111a043
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  • 10
    Electronic Resource
    Electronic Resource
    Synthesis and properties of segmented and block poly(hydroxyether-siloxane) copolymers (1988)
    s.l. : American Chemical Society
    Macromolecules 21 (1988), S. 1967-1977 
    Details
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ma00185a013
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