ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
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
    Rheological behaviour of worm-like micelles: Effect of electrostatic interactions (1994)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 16 (1994), S. 1401-1410 
    Details
    ISSN: 0392-6737
    Keywords: Mechanical properties of liquids ; Conference proceedings
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Summary Both linear and non-linear viscoelasticity experiments have been performed in semi-dilute micellar aqueous solutions of ethanediyl-α,ω-bis (dodecylmethylammonium bromide) as a function of solution chloride (NaCl) concentration. The results suggest that both linear and non-linear properties are affected by the electrostatic interactions. In particular, the plateau modulusG′∞ and the ratioσ m/G′∞, whereσ m represents the plateau value in a stress-shear rate experiment, are enhanced as the electrostatic interactions are screened by addition of salt. The zero-shear viscosity is lowered upon addition of NaCl, due likely to an exchange of the Cl− ions with the Br− counterions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02462024
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Ultrasonic studies in relation to the helix-coil transition in aqueous solutions of poly-L-lysine (1971)
    New York : Wiley-Blackwell
    Biopolymers 10 (1971), S. 2635-2638 
    Details
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bip.360101226
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Ultrasonic absorption studies of poly-benzyl-L-aspartate in mixed solvents, in relation to the helix-coil transition (1973)
    New York : Wiley-Blackwell
    Biopolymers 12 (1973), S. 79-87 
    Details
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Ultrasonic absorption measurements were carried out on solutions of polybenzyl-L-aspartate (PBLA) in chloroform-dichloroacetic acid (DCA) and in 1,2-dichloroethane (DCE)-DCA, in the range 3.9-155 MHZ. The helix-coil transition of PBLA produces an increase of absorption which is larger in CHCl3-DCA than in DCE-DCA solutions. The influence of the solvent on the excess ultrasonic absorption suggests that solvation processes may be involved in these changes of absorption. The plots of the absorption vs. the volume fraction of DCA do not show any absorption maximum. This indicates that the ultrasonic absorption is not sensitive to the helix-coil equilibrium of PBLA in the frequency range investigated. A maximum value of 109 S-1 has been obtained for the rate constant of growth of a helix region.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bip.1973.360120108
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...