Morphology-tunable and photoresponsive properties in a self-assembled two-component gel system.
Photoresponsive C3-symmetrical trisurea self-assembling building blocks containing three azobenzene groups (LC10 and LC4) at the rim were designed and synthesized. By introducing a trisamide gelator (G18), which can self-aggregate through hydrogen bonds of acylamino moieties to form a fibrous network, the mixture of LC10 (or LC4) and G18 forms an organogel with coral-like supramolecular structure from 1,4-dioxane. The cooperation of hydrogen bonding and the hydrophobic diversity between these components are the main contributions to the specific superstructure. The two-component gel exhibits reversible photoisomerization from trans to cis transition without breakage of the gel state.
Zhou
Yifeng
Y
Department of Chemistry & Laboratory of Advanced Materials, Fudan University, Shanghai 200433, People's Republic of China.
Xu
Miao
M
Yi
Tao
T
Xiao
Shuzhang
S
Zhou
Zhiguo
Z
Li
Fuyou
F
Huang
Chunhui
C