title: Tough and multi-responsive hydrogel based on the hemicellulose from the spent liquor of viscose process.
abstract: The hemicellulose isolated from the spent liquor of a viscose process was successfully utilized to prepare hydrogels by the graft copolymerization of acrylic acid (AA) with hemicellulose. The hemicellulose and prepared hydrogel were characterized by Fourier-transform infrared (FT-IR), scanning electron microscopy (SEM), and solid-state nuclear magnetic resonance ((13)C NMR). Under the optimum preparation conditions, the highest compressive strength and strain at break of the resultant hydrogel were 105.1±12.9kPa and 34.8%, respectively. Furthermore, the maximum equilibrium swelling degree of prepared hydrogel was 192. Also, the hydrogel could rapidly respond to pH, salt and ethanol. Taken together, the prepared hydrogels had great mechanical and multi-responsive properties. Thus, the prepared hydrogels had a great potential application in drug release, water treatment and cell immobilization. In addition, the utilization of alkaline extracted hemicellulose from the viscose fiber factory has huge market potential and economic benefits.
authors.affiliation: CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, Shandong, China; University of Chinese Academy of Sciences, Beijing 100049, China.
authors.forename: Jian
authors.initials: J
authors.lastname: Du
authors.affiliation: CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, Shandong, China. Electronic address: libin@qibebt.ac.cn.
authors.forename: Bin
authors.initials: B
authors.lastname: Li
authors.affiliation: CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, Shandong, China; University of Chinese Academy of Sciences, Beijing 100049, China.
authors.forename: Chao
authors.initials: C
authors.lastname: Li
authors.affiliation: CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, Shandong, China.
authors.forename: Yuedong
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, Shandong, China.
authors.forename: Guang
authors.initials: G
authors.lastname: Yu
authors.affiliation: CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, Shandong, China; Liaoning Key Laboratory of Pulp and Papermaking Engineering, Dalian Polytechnic University, Dalian 116034, Liaoning, China. Electronic address: wanghs@qibebt.ac.cn.
authors.forename: Haisong
authors.initials: H
authors.lastname: Wang
authors.affiliation: CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, Shandong, China.
authors.forename: Xindong
authors.initials: X
authors.lastname: Mu
mesh_terms: D000179:Acrylates / Q000138:chemical synthesis / Q000737:chemistry*; D002482:Cellulose / Q000737:chemistry; D004337:Drug Carriers / Q000138:chemical synthesis / Q000737:chemistry*; D065546:Drug Liberation; D006801:Humans; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate / Q000008:administration & dosage / Q000138:chemical synthesis / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D058105:Polymerization; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*; D011134:Polysaccharides / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D000179:Acrylates; D004337:Drug Carriers; D011108:Polymers; D011134:Polysaccharides; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate; C007916:hemicellulose; D002482:Cellulose; C012024:rayon, purified; C036658:acrylic acid
keywords: Graft copolymerization; Hemicellulose waste liquor; Stimuli-responsive hydrogel