Organogel formation based on bis-urea derivative

Abstract

In this work, a new gelator containing urea group was synthesised which had excellent gelation ability and could form organogel in 12 frequently used solvents. Varisized fibre structures were obtained by self-assembly via sol-gel process. The self-assembly structure and the formation mechanism had been studied and certified by scanning electron microscopy, UV–vis, IR and XRD experiment data. The ‘H-aggregate’ self-assembly mode was adopted in organogel system. H-bonding and π–π stacking were the main driving force for the organogel formation.

Abstract

The self-assembly structures could be adjusted by the solvents.

Keywords::

• organogel
• self-assembly
• urea group
• fibre structure
• hydrogen bonding

Acknowledgement

The authors gratefully acknowledge Prof. Tao Yi of Fudan University for partial experimental support and research fellowships.

Additional information

Funding

This work was financially supported by the National Natural Science Foundation of China [No. 21002082], the Science and Technology Key Project of Henan Education Department [No. 13A150760] and the Development projects of Henan province science and technology [132300410090].