NEW GIANT MACROMOLECULES: COPOLYDENDRIMERS CONTAINING HETEROATOMS

摘要

Polymer chemistry is one of most interesting fields, both from an academic point of view and on an industrial scale. This discipline generates significant economic activity and is at the confluence of multiple technologies applicable to our daily life. The vitality in this field is a strong impetus for designing new macromolecular architectures to drive progress and performance forward, and to continuously bring to the market new polymers and utilities. Following the linear polymers, the concept of producing copolymers having two segments in the main chain has enriched the library of such macromolecules and led to investing other industrial sectors that were hitherto difficult to break into. In a complementary manner, dendrimers are macromolecules that are built step by step with a high precision. Their advantages in terms of topology and surface reactivity have been exploited in interactions with living cells (nanomedicine) and with exotic chemical entities (catalysis). Surprisingly, no true polymer built by assembling a plurality of dendrimers has been reported to date. Yet, the synergistic effects and the transition from a dendrimeric scale to a polymeric scale would be of undeniable interest for these architectures. The work to which this invention is directed is that of synthesising, in view of the complete absence of this type of macromolecules on the market, copolydendrimers with heteroatoms, forming three-dimensional giants. The initial dendrimers are designed such that they react readily with each other, thus generating a three-dimensional network built from repeating complex objects. In addition, these syntheses are extremely ecological and fall within the concept of eco-manufacturing, as indicated by the absence of a catalyst and by the generation of water and nitrogen as the only synthesis by-products. The versatility of these copolydendrimers is shown by their numerous chemical functions, with an ability to react differently, thereby conferring to these copolydendrimers an original polyfunctional nature.