title: Preparation and characterization of Lignin-graft-poly (ɛ-caprolactone) copolymers based on lignocellulosic butanol residue.
abstract: In this paper, a "graft from" Ring-Opening Polymerization (ROP) technique was used to synthesize a lignin-graft-poly (ɛ-caprolactone) copolymer (BBL-g-PCL) using biobutanol lignin (BBL) as raw material recovered from lignocellulosic butanol residue. Polymerizations were carried out with various mass ratios of BBL and CL monomer ([BBL]/([BBL]+[CL])=1.0%, 5.0%, 10%, 20% and 40% (w/w)) to obtain BBL-g-PCL copolymers with different molecular weights, ranging from 367 to 8163gmol(-1). The grafting efficiency was preliminary evidenced by the long-term stability of dissolution of BBL-g-PCL in toluene. FT-IR and NMR analysis provided the further evidences for successful formation of BBL-g-PCL copolymer. The thermal properties of BBL-g-PCL copolymers were characterized by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). These results indicated that BBL-g-PCL copolymer had relatively good thermal stability. The static contact angle of BBL-g-PCL coating film reached to 80°. The surface functional groups and chemical composition of BBL-g-PCL copolymer was investigated in detail by X-ray photoelectron spectroscopy (XPS). The surface morphology of BBL-g-PCL copolymer was studied by Atomic force microscopy (AFM). Additionally, BBL-g-PCL coating film exhibited high absorption in the ultraviolet (UV) range, which could allow for applications in UV-blocking coatings, as well as the extents for the utilization of lignocellulosic butanol residue.
authors: School of Engineering, and National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, Zhejiang Agriculture and Forestry University, Hangzhou Lin'an 311300, China; Institute of Chemical Industry of Forestry Products, Nanjing 210037, China.
authors: Xiaohuan
authors: X
authors: Liu
authors: School of Life Science, and Taizhou Institute of Environmental Monitoring and Pollution Control Technology, Taizhou University, Taizhou 318000, China. Electronic address: zongenmin@163.com.
authors: Enmin
authors: E
authors: Zong
authors: School of Life Science, and Taizhou Institute of Environmental Monitoring and Pollution Control Technology, Taizhou University, Taizhou 318000, China.
authors: Jinhua
authors: J
authors: Jiang
authors: School of Engineering, and National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, Zhejiang Agriculture and Forestry University, Hangzhou Lin'an 311300, China. Electronic address: fshenyuan@sina.com.
authors: Shenyuan
authors: S
authors: Fu
authors: Institute of Chemical Industry of Forestry Products, Nanjing 210037, China; State Key Laboratory of Motor Vehicle Biofuel Technology, Nanyang 473000, China.
authors: Jifu
authors: J
authors: Wang
authors: School of Engineering, and National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, Zhejiang Agriculture and Forestry University, Hangzhou Lin'an 311300, China.
authors: Binbin
authors: B
authors: Xu
authors: School of Engineering, and National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, Zhejiang Agriculture and Forestry University, Hangzhou Lin'an 311300, China.
authors: Wenhuan
authors: W
authors: Li
authors: College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China.
authors: Xianzhi
authors: X
authors: Lin
authors: Institute of Chemical Industry of Forestry Products, Nanjing 210037, China; State Key Laboratory of Motor Vehicle Biofuel Technology, Nanyang 473000, China.
authors: Yuzhi
authors: Y
authors: Xu
authors: Institute of Chemical Industry of Forestry Products, Nanjing 210037, China; State Key Laboratory of Motor Vehicle Biofuel Technology, Nanyang 473000, China.
authors: Chunpeng
authors: C
authors: Wang
authors: Institute of Chemical Industry of Forestry Products, Nanjing 210037, China; State Key Laboratory of Motor Vehicle Biofuel Technology, Nanyang 473000, China. Electronic address: Chufuxiang@caf.ac.cn.
authors: Fuxiang
authors: F
authors: Chu
mesh_terms: D000440:Butanols / Q000737:chemistry*; D002152:Calorimetry, Differential Scanning; D002208:Caproates / Q000737:chemistry*; D007783:Lactones / Q000737:chemistry*; D008031:Lignin / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D058105:Polymerization; D011108:Polymers / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013499:Surface Properties; D013818:Thermogravimetry
chemical_list: D000440:Butanols; D002208:Caproates; D007783:Lactones; D011108:Polymers; C036909:lignocellulose; C121056:caprolactone; D008031:Lignin
keywords: Graft copolymer; Lignocellulosic butanol residue; UV absorption; ɛ-caprolactone