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  • 1
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 12 (1974), S. 521-534 
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Polymers with fluoroalkyl side-groups on three of every four carbon atoms along the polymer main chain were made by treating 1 : 1 copolymers of perfluoroallyl (or methallyl)ethers and maleic anhydride with SF4, and then esterifying the resulting acid fluoride groups with 1H, 1H-pentadecafluorooctanol. Surface wettability of these polymers by polar and non-polar liquids was studied. The critical surface tension (γc) was found by Zisman's method. The dispersion force component of polymer surface energy (γsD) and the polar component of surface energy (γsp) were calculated by the respective methods of Fowkes and Owens. The γc values for several of the highly fluorinated polymers were lower than previously reported for any fluoropolymer but not so low as has been observed for the surface of an oriented perfluoroacid monolayer. In the range 11.4-18.5 dyne/cm, γc approximates γsD for the fluorinated surfaces; however at lower γc values, considerable difference between γc and γsD was noted.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 82 (1970), S. 45-45 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 385 (1971), S. 85-91 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Es wurden die Diäthylaminowolfram(VI)-fluoride WF5NEt2, WF4(OMe)(NEt2) and WF4(OPh)(NEt2) durch Umsetzung von Trimethylsilyldiäthylamin mit WF6, WF5OMe bzw. WF5OPh dargestellt. Ihre IR- und KMR-Spektren werden mit denen anderer substituierter Wolfram(VI)-fluoride verglichen. Mit Dimethylsulfit reagieren WF5NEt2 und WF5POh offenbar jeweils zu einem Gemisch aus WF4(X)[OS(O)OMe] und WF4(X)(OMe) (X = NEt2 oder OPh).
    Notes: The diethylaminotungsten(VI) fluorides WF5NEt2, WF4(OMe)(NEt2), and WF4(OPh)(NEt2), have been prepared from reactions of trimethylsilyldiethylamine with tungsten hexafluoride, methoxy-, and phenoxytungsten(VI) pentafluorides, respectively. Their i.r. and n.m.r. spectra are reported and compared with those of other substituted tungsten(VI) fluorides. WF5NEt2 and WF5OPh undergo complex reactions with dimethyl sulphite which may be explained in terms of the formation of WF4(X)[OS(O)OMe] and WF4(X)(OMe) (X = NEt2 or OPh).
    Additional Material: 3 Tab.
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 9 (1970), S. 73-73 
    ISSN: 0570-0833
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
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  • 5
    ISSN: 0449-296X
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The preparation and physical properties of some perhaloalkyl acrylate and methacrylate esters are discussed. In the synthetic route to the perhaloalkyl esters, acryloyl or methacryloyl chloride is made to react with a metal fluoride - perhaloketone adduct. A side reaction which accompanies esterification is the formation of acryloyl or methacryloyl fluoride. Possible mechanisms for the formation of acyl fluoride and ester are considered. Evidence is presented which suggests that acyl fluoride formation may occur by a breakdown of the fluoroalkyl esters through an intramolecular fluorine shift.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
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