The Role of Oxygen in Solid State Polymerization. [Part] 1. Acrylamide and Its Solid Solutions Page: 4 of 27
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THE ROLE OF OXYGEN IN SOLID STATE POLYMERIZATION.
I. ACRYLAMIDE AND ITS SOLID SOLUTIONS.
Brookhaven National Laboratory
Upton, N.Y., U.S.A.
One of the important problems in the chemistry of organic solids
is the effect of crystal structure on the.course of solid state re-
actions. That there is an effect seems obvious. At the very least,
relative lattice energies must be involved in going from the react-
ant to the product structures. That the effect can be very precise
and strong is demonstrated, for example, by the so-called "topo-
tactic" reactions.(1,2) In these, the resulting products show a
structure and orientation presumably related to the host lattice.
On the other hand, we are faced with the problem of explaining why
the majority of solid state polymerizations, though they take place
in perfectly good crystals, give an amorphous product.(3) This
indicates that the effect of the crystal structure can also be
quite subtle and indirect.
In general, a chemical reaction involves a rearrangement of
atoms and a change in molecular geometry. This implies motion which
must take place within the crystal lattice.
We have previously suggested that one of the important effects
of the lattice structure on a reaction is to determine 'the modes of
motion available to the reactants and their relative ease. (4) In
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Adler, G. The Role of Oxygen in Solid State Polymerization. [Part] 1. Acrylamide and Its Solid Solutions, report, May 18, 1965; Upton, New York. (https://digital.library.unt.edu/ark:/67531/metadc1029631/m1/4/: accessed April 18, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.