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
Filter
Collection
Publisher
Years
  • 1
    Electronic Resource
    Electronic Resource
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 17 (1955), S. 99-106 
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The relation between molecular size and weight for polystyrene in cyclohexane at 34, 43, and 57°C. and toluene at 20°C. has been determined by a light scattering method. For the molecular weight range, half-million to five million, the data suggest a linear relationship:L2 = κ (M - b) where κ and b are parameters which have their higher values in better solvents.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 24 (1957), S. 275-281 
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Intrinsic viscosities were measured for sharply fractionated polymer in a good solvent and in a poor solvent at several temperatures. They increased with specific volume of the solute, [η] = ΦL3/M. Φ was considered as an empirical constant depending on solute and solvent. Values were determined for polystyrene/toluene and polystyrene/cyclohexane, using light-scattering measurements for derivation of molecular weights and dimensions. The equation was assumed valid for extrapolation to lower molecular weights and used to estimate molecular dimensions from viscosity/molecular weight data in a range not directly measurable. The results were compared with theoretical calculations of the random coil problem.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 28 (1958), S. 611-613 
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: p-Isopropenylstyrene was synthesized and its polymerization characteristics are essentially the same as those of divinylbenzene. A soluble prepolymer can be separated from polymerization in a solvent having chain transfer properties but polymerization in bulk or in an inert solvent gives crosslinked infusible polymer.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A: General Papers 1 (1963), S. 227-232 
    ISSN: 0449-2951
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Macromolecules with very long backbone and a multiplicity of side chains have been prepared. Polystyrene with stearylamido and polystyrene with laurylamido side chains were obtained by the copolymerization of p-vinylstearanilide and of p-vinyllauranilide with styrene. Polymers were made suitable for configurational studies by repetitive precipitation fractionation. Light-scattering and viscosity studies on dilute solutions indicated however that the effect of side chains on molecular volume was secondary in importance to the effect of variations in fractionation efficiency. Hydrogen succinate side groups on secondary cellulose acetate were obtained by a reaction on the polymer which was demonstrated to be nondegradative. A series of polymers was obtained with the same backbone molecular weight and varying substitution. A steric parameter was derived from viscosity measurements in acetic acid and its dependence on increasing extent of succinylation showed a progressive stiffening of the cellulose chain.
    Additional Material: 1 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...