Summary
The intrinsic viscosity of cross-linked copolymers of styrene andm,m′-divinyl-azobenzene orp-divinyl-benzene was measured for different degrees of polymerization.
It has been shown that the two vinyl groups of the cross-linking agent are taken up by growing chains, each one independently of the other.
The number of cross-linkages is not absolutely identical with the number of the molecules of divinyl compound, but is determined by the magnitude of the various rates of growth.
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Literatur
H. Staudinger undW. Heuer, Ber. dtsch. chem. Ges.67, 1164 (1934).
H. Staudinger undE. Husemann, Ber. dtsch. chem. Ges.68, 1618 (1935).
Vgl.J. W. Breitenbach undH. P. Frank, Mh. Chem., im Druck.
Dargestellt nachG. Komppa, Ber. dtsch. chem. Ges., Referate26, 677 (1893).
Reinesp-Divinylbenzol wurde mir von Herrn Dr.H. Hopff, Ludwigshafen, zur Verfügung gestellt, wofür ich ihm auch an dieser Stelle herzlichst danke.
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Breitenbach, J.W. Zur Kenntnis der Vernetzungspolymerisation. Experientia 3, 239–241 (1947). https://doi.org/10.1007/BF02164141
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DOI: https://doi.org/10.1007/BF02164141