ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

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
    s.l. : American Chemical Society
    Macromolecules 3 (1970), S. 583-589 
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Macromolecules 3 (1970), S. 590-596 
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Macromolecules 3 (1970), S. 597-601 
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Calcified tissue international 6 (1970), S. 162-167 
    ISSN: 1432-0827
    Keywords: Raman Spectroscopy ; Collagen ; Calcification
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Description / Table of Contents: Résumé Des spectres Laser de Raman de tibias de boeuf et de tendons de rat reconstitués ont été réalisés et comparés avec le spectre infra-rouge de tissu calcifié, et de collagène. Les raies les plus intenses dans le tissue calcifié sont liées aux systèmes phosphates, symétriques: cependant certains systèmes des corps vertébraux et les chaines secondaires du collagène sont aussi apparents. Il semble que la proline et la phénylalamine du collagène particitpent au spectre. Le spectre Raman du collagène reconstitué est difficile à distinguer du fond fluorescent. Seules 6 bandes distinctes ont pu, etre obtenues elles se répartissent entre les peptides et des chaines secondaires. Les différences êntre le collagène reconstitué et calcifié semblent provenir de la dénaturation partielle du premier dans le faisceau laser. Les autres différences semblent liées à des différences chimiques vraies.
    Abstract: Zusammenfassung Die Laser-Ramanspektren von Ochsentibia und von rekonstituierter Rattenschwanzsehne wurden aufgenommen und mit den Infrarotspektren von verkalktem Gewebe und Kollagen verglichen. Die intensivsten Ramanbanden der verkalkten Gewebe wurden von den symmetrischen Phosphatschwingungen verursacht; einige der Schwingungen des Grundgerüstes und der Seitenketten sind jedoch ebenfalls sichtbar. Es weist einiges darauf hin, daß sowohl das Prolin als auch das Phenylalanin des Kollagens zum Spektrum beitragen. Das Ramanspektrum Nur 6 klar abgetrennte Banden, die sich auf Peptide und Seitenkettenschwingungen verteilten, wurden erhalten. Die Unterschiede zwischen den Spektren von redonstituiertem und verkalktem Kollagen können auf eine teilweise Denaturierung des ersteren im Laserstrahl zurückgeführt werden. Andere Unterschiede scheinen rein chemischer Natur zu sein.
    Notes: Abstract Laser Raman spectra of ox tibia and of reconstituted rat tail tendon have been obtained and have been compared with the infrared spectra of calcified tissue and collagen. The most intense Raman bands in the calcified tissue originate from the symmetric phosphate modes; however, several of the backbone and side chain modes of collagen are also apparent. There is some evidence that both proline and phenylalamine in the collagen contribute to the spectrum. The Raman spectrum of reconstituted, collagen was difficult to separate from the fluorescence background. Only six distinct bands could be obtained, divided between peptide and sidechain modes. Differences between reconstituted and calcified collagen spectra may originate from partial denaturation of the former in the laser beam. Other differences seem to be genuine chemical manifestations.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 252 (1974), S. 183-183 
    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
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Biopolymers 9 (1970), S. 1229-1237 
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The Raman spectra of poly-L-lysine hydrochloride and poly-∊-carbobenzoxy-L-lysine in the solid state have been obtained and are consistent with the presence of an α-helical structure. The Raman spectrum of poly-L-lysine in aqueous solution suggests the presence of random coil structures.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Biopolymers 10 (1971), S. 89-106 
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The Raman spectra of poly-γ-benzyl-L-glutamate, poly-L-leucine, poly-L-valine, and poly-L-serine are reported. For the α-helical polymers, the conformationally sensitive amide I, II, and III modes are observed in the Raman as, well as the infrared. For the β form, the Raman effect, supplies the infrared inactive inphase motion which is useful for the determination of a parallel or antiparallel chain alignment. Modes characteristic of the specific polypeptide are also observed which are insensitive to conformation.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A-2: Polymer Physics 9 (1971), S. 717-729 
    ISSN: 0449-2978
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Several copolymers as well as homopolymers of vinylidene chloride and vinyl chloride have been examined by Raman spectroscopy. Probabilities of concentrations of monomer sequences have been calculated from known reactivity ratios. Surface scattering intensities at some frequencies were found to be linearly proportional to specific microstructure concentrations. Normalization of scattering intensities was accomplished using the intensity of the CH2 asymmetric stretching mode at 2926 cm-1, which is common to all samples examined. Good correlation was found for the concentrations of comonomer sequences {B}, {BB}, {BBB}, {AA} and {AAAA} in which A denotes vinylidene chloride and B vinyl chloride.
    Additional Material: 16 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 24 (1973), S. 468-477 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Corrosion and corrosion protection in high pressure technologyStarting from a number of conventional types of containers and sealing elements the authors present a review of typical corrosion phenomena to be taken account of in the pressure range up to 5000 bars. It is shown in this context that in certain cases it is not yet possible to make available to the designing engineer the theoretical bases which would enable these corrosions to be kept under control. This is why the solution of problems typical to high pressure and high temperatur ranges has still to rely on empirics. As to corrosion protection the following means can be applied: lining; internal tube; plated sheet; floating internal vessel; bard facing.
    Notes: Ausgehend von einigen herkömmlichen Behältertypen und Dichtungselementen geben die Verfasser eine Übersicht typischer Korrosionserscheinungen, die im Druckbereich bis 500 bar zu berücksichtigen sind. Dabei wird gezeigt, daß es in bestimmten Fällen noch nicht möglich ist, dem Konstrukteur die theoretischen Grundlagen zu liefern, die eine Beherrschung dieser Korrosionen ermöglichen. Man ist daher bei der Lösung der für das Hochdruck- und Hochtemperaturgebiet typischen Probleme noch immer auf die Empirie angewiesen. Bezüglich des Korrosionsschutzes stehen im wesentlichen die folgenden Hilfsmittel zur Verfügung: Innenauskleidung; Futterrohr; plattierte Bleche; Schwimmblase; Auftragsschweißung.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A-2: Polymer Physics 10 (1972), S. 721-740 
    ISSN: 0449-2978
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: An unsaturated polyester resin and the styrene-crosslinked polyester were studied with laser Raman spectroscopy. Following the polyesterification reaction, Raman measurements showed that the polyester contained 55% fumarate and 45% maleate unsaturation. Additionally, the glycol fragment was indicated to exist as the gauche isomer. The 1213 cm-1 line is assigned to the glycol-ester linkage and can be measured to follow the conversion to polymer. After the crosslinking reaction, styrene was found to copolymerize preferentially with the fumarate unsaturation. There was no evidence of forming long-chain polystyrene crosslinks. Our results indicate that, after crosslinking, 41% of the fumarates have reacted with styrene and there is an average of two styrene molecules in each link.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...