Interchain exchange

These and similar interchain exchange reactions have been discussed in more detail by Enikolopyan, Irzhak and Rozenberg in the recently publisl d lx>ok on the interchain exchange of mactomolecules ... 

Rosenberg, B. A., Irzak, W. 1., Enikolopyan, N. S. Interchain Exchange Reactions in Polymers (Russian). Moscow Khimia 1975... 

The frustration of the interchain exchange was, however, reported to be at least partially lifted below through a structural phase transition which represented an... 

B.A.Rosenberg, W.I.Irzak and W.S.Enikolopian "Interchain exchange in polymers" Chimia, Moscow,... 

Rosenberg, B. A. Irzhak, W. J. Enikolopyan, N. S.Interchain Exchange in Polymers (in Russian)-, Khimiya Moscow, Russia, 1975. 

In a study on the example of model reactions of polycondensation of aroyl-bis-4-hydroxybenzoyl chlorides with aliphatic and aromatic dipoles, it was shown in [17] that the competing reactions of alcoholysis and phenolysis do not affect (in conditions identical to polycondensation) the internal aromatic ester bonds in the mesogenic fragment. In contrast to them, the tominal ester bonds in the fragment und go alcoholysis, but this does not result in perturbation of the regularity of the structure of the polyether. The interchain exchange reaction could be the cause of perturbation of the regularity of the structure of the chain, but NMR spectroscopy showed that the perturbations of the structure of the terephthaloyl-bis-4-hydroxybenzoate triad did not take place [17]. 

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