Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 256 (1978), S. 290-291 
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 274 (1978), S. 278-281 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Male Wistar rats (300-320 g) received unilateral 6-hyd-roxydopamine (6-OHDA) lesions of the NSP at the level of the lateral hypothalamus. After 25 d, the animals were killed and the striatum and SN were dissected out as previously described22. A small portion of the striatum was taken for tyrosine ...
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of thermal analysis and calorimetry 10 (1976), S. 59-64 
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Résumé La cellulose substituée par des groupes silico-organiques représente un nouveau type de celluloses modifiées. La présence du silicium change complètement les caractéristiques physiques et chimiques de la cellulose. L'étude thermo-analytique de divers dérivés de la cellulose triméthylsilylée a été effectuée dans l'air en atmosphère statique. Les courbes ATD de la cellulose utilisée comme matériau de départ sont différentes de celles de ses dérivés silylés. Pour ceux-ci, un nouveau pic exothermique caractéristique apparaît entre 320 et 370°C. La température du maximum du pic dépend du degré de la silylation et se déplace vers les valeurs plus élevées si le degré de substitution augmente.
    Abstract: Zusammenfassung Die durch Organosilikongruppen substituierte Zellulose stellt einen neuen Typ modifizierter Zellulose dar. Die Silylierung ändert die physikalischen und chemischen Eigenschaften der Zellulose drastisch. Die thermoanalytische Prüfung verschieden trimethylsilylierter Zellulosederivate wurde in Luft unter statischen Bedingungen durchgeführt. Die DTA-Kurven der als Ausgangsmaterial eingesetzten Zellulose sind von denen ihrer Silylderivate verschieden. In den letzteren erscheint ein neuer charakteristischer exothermer Peak im Bereich von 320 bis 370°C. Die Temperaturlage dieses Maximums hängt vom Silylierungsgrad ab und wird bei höherem Substitutionsgrad in Richtung höherer Temperaturen verschoben.
    Notes: Abstract Cellulose substituted by organosilicon groups represents a new type of modified cellulose. The silylation changes the physical and chemical properties of cellulose drastically. The thermoanalytical investigation of differently trimethylsilylated cellulose derivatives was carried out under static conditions in air atmosphere. The DTA curves of the cellulose used as starting material are different from those of its silylated derivatives. In the latter a new characteristic exothermic peak appears in the range 320–370°. The value of this maximum depends on the grade of silylation, being shifted towards higher temperatures with higher degrees of substitution.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 10 (1977), S. 14-19 
    ISSN: 0030-4921
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1H and 13C chemical shift data are presented and discussed for a number of di- and tri-alkyl substituted alkenes, epoxides and thionocarbonates. The completely stereospecific interconversion of these compounds, together with the n.m.r. data, allows a straightforward and quantitative stereochemical analysis. For 1H n.m.r., the most useful intermediates proved to be the thionocarbonates. The differential shieldings between cis and trans isomers are tentatively explained in terms of the conformational change of the 5-membered thionocarbonate ring. In 13C n.m.r., either series can be useful to distinguish between stereoisomers. The conclusions stemming from the 13C n.m.r. results complement the 1H n.m.r. studies.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 177 (1976), S. 947-949 
    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
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...