Photoisomerization-induced morphology and transparency transition in an azobenzene based two-component organogel system

Xinhua Cao; Xue Liu; Liming Chen; Yueyuan Mao; Haichuang Lan; Tao Yi

doi:10.1016/j.jcis.2015.07.047

Photoisomerization-induced morphology and transparency transition in an azobenzene based two-component organogel system

J Colloid Interface Sci. 2015 Nov 15:458:187-93. doi: 10.1016/j.jcis.2015.07.047. Epub 2015 Jul 21.

Authors

Xinhua Cao¹, Xue Liu², Liming Chen³, Yueyuan Mao³, Haichuang Lan³, Tao Yi⁴

Affiliations

¹ College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China; Department of Chemistry & Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200433, China. Electronic address: caoxhchem@163.com.
² College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China.
³ Department of Chemistry & Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200433, China.
⁴ Department of Chemistry & Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200433, China. Electronic address: yitao@fudan.edu.cn.

PMID: 26218198
DOI: 10.1016/j.jcis.2015.07.047

Abstract

A two-component gel containing long chain alkylated gallic acid (GA) and photochromic phenazopyridine (PAP) was prepared. The gel was thoroughly characterized by UV-visible and IR spectra, SEM and POM images, XRD diffraction and dynamic oscillatory measurements. The structure and transparency of the two-component gel can be reversibly changed by alternative UV light irradiation and warming in the palm of the hand. This kind of soft material has potential application in upscale surface functional materials.

Keywords: Azobenzene; Morphology; Organogel; Self-assembly; Transparency.