Macromolecules, fully ordered properties

Topochemical reactivity and solid-state polymerization strongly merged in the extensive studies of diacetylene (1) polymerization by G. Wegner and collaborators beginning in 1969. There are two recent books devoted to polydiacetylenes (PDA, 2) (9,10), and it is fair to say that the literature of fully ordered macromolecules would be much less voluminous without the extensive research associated with diacetylene polymerization and the chemical, structural, and physical properties of these polymers. 

SANDMAN Fully Ordered Macromolecules and Their Properties... 

In this article, a great number of synthetic pathways leading to polymerlayered nanocomposites have been reported. The structure and the original properties of these new materials were greatly investigated, in particular from the viewpoint of their ionic or electron conductivity and their thermal stability. Nevertheless, only a small part of these works were focused on the study of the polymerization mechanisms at work and/or on the thorough analysis of the stereoregularity and the skeletal structure of intercalated macromolecules. So, a lot of research remains to be carried out in order to fully understand these factors and to prove that such routes are of industrial interest for the synthesis of well-defined polymers. 

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