46. Multiple Stimuli-Responsive Cellulose Hydrogels with Tunable LCST and UCST as Smart Windows
作者：Yongliang Ding, Youxian Yan, Qiang Peng, Baoxia Wang, Yuxian Xing, Zan Hua, Zhongkai Wang
关键字：critical solution temperature, stimuli response, hydrogels, cellulose, polyacrylamide, transmittance
论文来源：期刊
具体来源：https://dx.doi.org/10.1021/acsapm.0c00414
发表时间：2020年
It has been a significant challenge to prepare multiple-response hydrogels with both lower critical solution temperature (LCST) and upper critical solution temperature(UCST). This work reports the synthesis of methyl cellulose-graft-polyacrylamide (MC-g-PAM) hydrogels by ceric ion initiated graft polymerization. Mechanically strong MC-g-PAM hydrogels combine LCST and UCST in one system (LCST > UCST), which provides a transparent “temperature window”. The range of this temperature window can be tuned by changing cellulose contents or adding sodium chloride. In addition, the transmittance of MC-g-PAM hydrogels can be precisely controlled via application of varied DC voltage. These desirable properties make the MC-g-PAM hydrogels as smart materials.