Glow discharge electrolysis plasma initiated preparation of temperature/pH dual sensitivity reed hemicellulose-based hydrogels

Wenming Zhang; Sha Zhu; Yunping Bai; Ning Xi; Shaoyang Wang; Yang Bian; Xiaowei Li; Yucang Zhang

doi:10.1016/j.carbpol.2015.01.007

Glow discharge electrolysis plasma initiated preparation of temperature/pH dual sensitivity reed hemicellulose-based hydrogels

Carbohydr Polym. 2015 May 20:122:11-7. doi: 10.1016/j.carbpol.2015.01.007. Epub 2015 Jan 12.

Authors

Wenming Zhang¹, Sha Zhu², Yunping Bai², Ning Xi², Shaoyang Wang², Yang Bian², Xiaowei Li², Yucang Zhang³

Affiliations

¹ Hebei Key Lab of Optic-electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China. Electronic address: wmzhang@hbu.edu.cn.
² Hebei Key Lab of Optic-electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China.
³ College of Materials and Chemical Engineering, Hainan University, Haikou 570228, China. Electronic address: yczhang@hainu.edu.cn.

PMID: 25817637
DOI: 10.1016/j.carbpol.2015.01.007

Abstract

The temperature/pH dual sensitivity reed hemicellulose-based hydrogels have been prepared through glow discharge electrolysis plasma (GDEP). The effect of different discharge voltages on the temperature and pH response performance of reed hemicellulose-based hydrogels was inspected, and the formation mechanism, deswelling behaviors of reed hemicellulose-based hydrogels were also discussed. At the same time, infrared spectroscopy (FT-IR), scanning differential thermal analysis (DSC) and scanning electron microscope (SEM) were adopted to characterize the structure, phase transformation behaviors and microstructure of hydrogels. It turned out to be that all reed hemicellulose-based hydrogels had a double sensitivity to temperature and pH, and their phase transition temperatures were all approximately 33 °C, as well as the deswelling dynamics met the first model. In addition, the hydrogel (TPRH-3), under discharge voltage 600 V, was more sensitive to temperature and pH and had higher deswelling ratio.

Keywords: Deswelling dynamics; Glow discharge electrolysis plasma; Hydrogels; Reed hemicelluloses; Swelling ratio; Temperature and pH sensitivity.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Electrolysis*
Hydrogels / chemistry*
Hydrogen-Ion Concentration
Kinetics
Plasma Gases / chemistry*
Polysaccharides / chemistry*
Salts / chemistry
Temperature*
Water / chemistry

Substances

Hydrogels
Plasma Gases
Polysaccharides
Salts
Water
hemicellulose