Transparent and semi-interpenetrating network P(vinyl alcohol)-P(Acrylic acid)hydrogels:pH responsive and electroactive application  

作　　者：Tippabattini Jayaramudu Hyun-U Ko Hyun Chan Kim Jung Woong Kim Yaguang Li Jaehwan Kim 

机构地区：[1]Department of Mechanical Engineering,Inha University,Incheon,South Korea

出　　处：《International Journal of Smart and Nano Materials》2017年第2期80-94,共15页国际智能和纳米材料杂志（英文）

基　　金：This work was supported by the National Research Foundation of Korea[NRF2015R1A3A2066301]。

摘　　要：In this paper,poly(vinyl alcohol)-poly(acrylic acid)based transparent semi-interpenetrating network(semi-IPN)hydrogels were synthesized by using a solvent mixture of dimethyl sulfoxide and deionized water via free radical polymerization and subsequent freeze-thaw technique.The formation of the semi-IPN hydrogels was conformed from FT-IR spectra.The acrylic acid concentration effect on the hydrogels was investigated in terms of transparency,crystalline structure and thermal stability by using UV-visible spectroscopy,X-ray diffraction and thermogravimetric analysis.Swelling behaviours of the semi-IPNPAP hydrogels were studied in deionized water and different pH solutions.The compression and electroactive behaviour was tested in fully hydrated stage by using compression test and by applying electrical voltage.The hydrogels showed displacements under the applying voltage and detailed experiment is illustrated.

关 键 词：Transparent hydrogel Semi-IPN hydrogel Acrylic acid Freeze-thaw technique Electroactive behaviour 

分 类 号：O63[理学—高分子化学]