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
URL:
http://dx.doi.org/10.1002/pol.1963.100010118
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