Bending behaviors of electroresponsive PVA/PAA SIPN hydrogels under electric field
Semi-Interpenetrating networks (SIPN) hydrogel composed of poly (acrylic acid) (PAA) and poly (vinyl alcohol) (PVA) was prepared by using Ammonium persulfate (APS) and sodium bisulfite as initiator and glutaraldehyde as crosslinking agent. The structure and microscopic morphology were characterized by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscope (SEM), respectively. The results showed that PVA and PAA formed the interpenetrating network and there are lots of pores were evenly dispersed in hydrogel matrix. The electric stimuli responsive measurement results indicated the hydrogel bent toward the anode initially when it was placed in a high concentration NaCI aqueous solution. When the NaCI solution concentration is low, the hydrogel bent toward the cathode and kept invariant. The effects of different applied voltage and different AA contents on bending behaviors of hydrogel were also investigated.
component Hydrogel electric stimuli response/ PVA/PAA semi-interpenetrating network osmotic pressure
Wei-wei Cui Li-zhu Liu Xing-song Zhu
College of Materials Science and Engineering,Harbin University of Science and Technology Harbin Harbin,China
国际会议
The 6th International Forum on Strategic Technology(IFOST 2011)(第六届国际战略技术论坛)
哈尔滨
英文
122-125
2011-08-22（万方平台首次上网日期，不代表论文的发表时间）