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  • 1
    Electronic Resource
    Electronic Resource
    Interfacial polycondensation. III. PolyamidesPresented at the Symposium on Polyethers and Condensation Polymers at the 134th Meeting of the American Chemical Society, Chicago, Ill., September 1958. (1959)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 40 (1959), S. 329-336 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Experimental details are given for the interfacial polycondensation of thirteen polyamides having widely different structures. The method involves the fast, room-temperature reaction in a two-phase system between diamines and diacid chlorides. Aliphatic, alicyclic, and aromatic reactants, primary and secondary diamines, and many reactants containing other functional groups are all operable. The preparations illustrate a variety of procedural modifications and point up the simplicity, rapidity, and broad applicability of the method.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1959.1204013703
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  • 2
    Electronic Resource
    Electronic Resource
    Systematik der Prinziplösungen zum Trennen von Stoffen  -  Ein Beitrag zur Konstruktionsmethodik  -  (1980)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 52 (1980), S. 695-702 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Systematic approach to basic solutions for the separation of materials - A contribution to the methodology of design. It is of importance in the systematic conceptualization and development of technical systems that physical and other processes occurring in these systems can be attributed to a particular number of unit operations. One of these unit operations is the “separation of materials”, which is especially important in the development of chemical engineering equipment. Collection of all physical effects (phenomena) contributing to a unit operation and classification thereof in a system according to certain criteria provides an excellent aid for fast and comprehensive description of possible solutions of a particular design task. This article presents such a system of effects and basic solutions for the task “separation of materials”.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330520903
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  • 3
    Electronic Resource
    Electronic Resource
    Starch-Filled PHB and PHB/HV copolymer (1996)
    New York, NY [u.a.] : Wiley-Blackwell
    Polymer International 39 (1996), S. 175-181 
    Details
    ISSN: 0959-8103
    Keywords: starch ; poly-3-hydroxybutyrate ; biodegradable polymers ; mechanical properties ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The structure and mechanical properties of melt-pressed sheets of bacterially produced poly-3-hydroxybutyrate (PHB) and poly-3-hydroxybutyrate-co-3-hydroxyvalerate (PHB/HV) filled with various amounts of particulate maize starch granules have been investigated. The experimental methods included stress-strain measurements, differential thermal analysis to determine heats of fusion and melting temperatures, scanning electron microscopy, and optical microscopy to obtain information on crystallization behaviour and spherulite growth.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Non empirical calculation of the copolymerization of ethylene with acrylonitrile (1973)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 174 (1973), S. 243-245 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1973.021740123
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  • 5
    Electronic Resource
    Electronic Resource
    Photochemical behaviour of α-thiocyanatoketones in a polymer matrix and of thiocyanatoketones groups covalently bound to polystyrene (1993)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 194 (1993), S. 2759-2769 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The laser-induced photoisomerization of various α-thiocyanatoketones in a polymer matrix (polystyrene, cis-1,4-polybutadiene, butadiene-styrene copolymer) was studied by means of FT-IR spectroscopy. Phenacyl thiocyanate was converted to phenacyl isothiocyanate under UV irradiation. The degree of isomerization increased with the styrene content of the matrix polymer. Aromatic sensitizers such as chrysene and anthracene enhanced the isomerization reaction, but also led to the decomposition of already formed isothiocyanate. After comparison of the photoreactivity of different α-thiocyanatoketones, a linear correlation was established between the amount of isothiocyanate formed after a certain pulse number and the absorption coefficient at the laser wavelength. Polystyrene containing thiocyanatoacetyl groups was prepared via reaction with acetyl chloride, subsequent bromination at the acetyl group and reaction with potassium thiocyanate. The photoisomerization was similar to that of the low-molecular-weight α-thiocyanatoketones. This photoisomerization increased, and the degree of crosslinking decreased, when a magnetic field of 900 mT was applied.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1993.021941010
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  • 6
    Electronic Resource
    Electronic Resource
    An electron microscopic method for studying nucleic acid-protein complexes. Visualization of RNA polymerase bound to the DNA of bacteriophages T7 and T3Dedicated to the memory of Dr. Jean-Pierre Tranzer. (1974)
    New York : Wiley-Blackwell
    Biopolymers 13 (1974), S. 995-1009 
    Details
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Double-stranded DNA can be readily adsorbed on mica or directly on carbon coated grids from the surface of solutions containing ethidium bromide, actinomine, or propidium diiodide. The DNA molecules are unfolded, well separated, and show a length distribution similar to molecules prepared by protein monolayer techniques.Since the intercalating dyes tested do not lead to an increased apparent diameter of the nucleic acid the method is useful for the study of nucleic acid-protein complexes. As a model, the binding of E. coli RNA polymerase to phage T7 and T3 DNA was examined under different conditions. The enzyme can easily be identified and its position along the DNA molecule can be mapped.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bip.1974.360130514
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  • 7
    Electronic Resource
    Electronic Resource
    Lösungs- und verdünnungswärmen von polyethylenglykolen in wasser und benzol, 1. Experimentelle ergebnisseHerrn Professor Dr. Dr. h. c. Franz Patat zum 75. Geburtstag gewidmet (1981)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 182 (1981), S. 3579-3590 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Dissolution and dilution enthalpies of poly(ethylene glycol)s were measured in water and benzene, resp., by microcalorimetry. The enthalpies depend on both solute concentration and molar mass, indicating interactions between hydroxyl endgroups, ether groups and solvent molecules. Low molar mass samples form hydrogen bonds between hydroxyl and ether groups at solute concentrations of 0,003 g/cm3 and higher. High molar mass samples form intermolecular associates through dispersion forces at concentrations above 0,06 (benzene) and 0,1 g/cm3 (water).
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1981.021821220
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