Abstract
Self-complementary quadruple hydrogen bonding has been developed by us as a tool for the formation of linear supramol. polymers and reversible networks with unique mech. properties. Although the selectivity and dimerization strength of the ureidopyrimidinone (UPy) unit3 are well suited to prep. these simple polymer topologies, alternating copolymers, hyperbranched polymers and graft copolymers require complementary hydrogen bonding units. Recently we have shown that the combination of UPy with 1,8-diamino naphthyridines (NaPy) can be used to obtain alternating copolymers and directional polymers from AB monomers. Following the pioneering work of Kato and Frechet polymers with supramolecularly grafted side chains have been prepd. by several groups using single and up to triple hydrogen bonding. Here we show that using the complementary UPy-NaPy couple, and with the aid of acyclic diene metathesis polymn. (ADMET), reversible graft copolymers are obtained which can be analyzed conveniently using GPC with the reversibly grafted component in the mobile phase. [on SciFinder (R)]
| Original language | English |
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| Title of host publication | Proceedings of the 233rd American Chemical Society National Meeting, March 25-29, 2007, Chicago, IL, United States |
| Place of Publication | Washington, D. C |
| Publisher | American Chemical Society |
| Pages | PMSE-154 |
| Publication status | Published - 2007 |