Chinese Science Bulletin

, Volume 57, Issue 33, pp 4289–4295 | Cite as

Poly(benzyl ether) dendrons without conventional gelation motifs as a new kind of effective organogelators

Open Access
Article Progress of Projects Supported by NSFC Special Topic Supramolecular Gel: From Structure to Function

Abstract

Two poly(benzyl ether) dendrons, decorated in their periphery with nitrile groups, were divergently synthesized and fully characterized. Their gelation properties were studied by using scanning electron microscopy (SEM), X-ray crystal structure analysis and concentration- and temperature-dependent 1H NMR spectroscopy. It was found that the gelation capability of these dendrons was highly dependent on dendron generation, and the second-generation dendron G2-CN proved to be highly efficient organogelator despite the lacking of any conventional gelation motifs, such as amides, long alkyl side chains and steroidal groups. The multiple strong π-π stacking interactions and hydrogen bonding interactions due to the peripheral isophthalonitrile motifs were proved to be the main driving forces to form the self-assembled gel.

Keywords

dendron organogelator self-assembly 

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Copyright information

© The Author(s) 2012

Authors and Affiliations

  1. 1.Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of ChemistryChinese Academy of SciencesBeijingChina

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