Journal
POLYMER CHEMISTRY
Volume 7, Issue 26, Pages 4322-4325Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6py00869k
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Funding
- National Science Foundation of China [21274116, 21374088]
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A novel D3-AC-E3 triple-monomer methodology was proposed to construct supramolecular hyperbranched alternating polymers. Two rigid homotritopic monomers tris(per-methylated pillar[5] arene) (D-3) and tris(benzo-21-crown-7) (E-3), and a heteroditopic monomer bearing a dialkylammonium salt and a neutral guest moiety, were prepared. The supramolecular hyperbranched alternating polymer was formed by selective binding interaction between the pillar[5] arene moiety with the neutral guest moiety and between the benzo-21-crown-7 group and the dialkylammonium salt group. The triple-monomer system was found to effectively avoid the formation of cyclic oligomers/gels/precipitates usually formed in the traditional A(2) + B-3 double-monomer system. This study will be helpful in designing supramolecular hyperbranched polymers with controllable structure and function.
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