Multiple-stimulus-responsive hydrogels of cationic surfactants and azoic salt mixtures

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 固体润滑国家重点实验室

	Multiple-stimulus-responsive hydrogels of cationic surfactants and azoic salt mixtures
	Wang D(王栋)1,4; Hao JC(郝京诚)1,2,3
刊名	Colloid and Polymer Science
	2013
卷号	291 期号:12 页码:2935-2946
关键词	Phase behavior Hydrogel Multiple-stimulus response Surfactant Self-assembly
ISSN号	0303-402X
通讯作者	郝京诚
英文摘要	New hydrogels having high water content, 96 wt%, composed of cationic surfactants, alkyltrimethylammonium bromides (C_nTAB, n = 12, 14, 16, and 18), and a small dye molecule, sodium azobzenzene 4,4'-dicarboxylic acid (AzoNa₂), was firstly obtained. The three-dimensional network structures of hydrogels were determined by transmission electron microscopy images, scanning electron microscopy images, ¹H nuclear magnetic resonance, and small-angle X-ray scattering measurements. The mechanism of hydrogel formation was also illustrated. The rheological data were obtained to investigate the mechanical strength of hydrogels, which were turned out to be strong mechanical strength (～10⁴ Pa) materials. We found that the strength of the hydrogel depends on the fiber density, which can be controlled by changing the proportion of the two compounds, concentration of surfactants, temperature, and the chain length of the surfactant. Interestingly, the hydrogels were found to have a multiple-stimulus response property. A reversible thermal, UV-vis, or a chemical response was investigated in the mixtures of cationic surfactants and azoic salt for the first time. These findings may find potential applications such as sensors, actuators, shape memories, and drug delivery systems, etc.
学科主题	材料科学与物理化学
收录类别	SCI
资助信息	the NSFC (grant no. 21033005;21273136);the National Basic Research Program of China (973 program, 2009CB930103)
语种	英语
WOS记录号	WOS:000327124800021
公开日期	2013-12-30
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/4940]
专题	兰州化学物理研究所_固体润滑国家重点实验室
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Shandong Univ, Key Lab Colloid & Interface Chem, Minist Educ, Jinan 250100, Peoples R China 3.Shandong Univ, Key Lab Special Aggregated Mat, Minist Educ, Jinan 250100, Peoples R China 4.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Wang D,Hao JC. Multiple-stimulus-responsive hydrogels of cationic surfactants and azoic salt mixtures[J]. Colloid and Polymer Science,2013,291(12):2935-2946.
APA	Wang D,&Hao JC.(2013).Multiple-stimulus-responsive hydrogels of cationic surfactants and azoic salt mixtures.Colloid and Polymer Science,291(12),2935-2946.
MLA	Wang D,et al."Multiple-stimulus-responsive hydrogels of cationic surfactants and azoic salt mixtures".Colloid and Polymer Science 291.12(2013):2935-2946.