Modification and characterization of fibers of three sandy willow shrub species

作     者：Sun Xiao-feng Xiao Bin Mark S. Baird 

作者机构：MOE Key Lab of Environmental Remediation and Ecosystem Health Zhejiang University Hangzhou 310029 E R. China Department of Chemistry University of Wales Bangor Gwynedd LL57 2UW UK College of Horticulture Northwest Agricultural and Forestry University Yangling 712100 P. R. China 

出 版 物：《Forestry Studies in China》 (中国林学（英文版）)

年 卷 期：2006年第8卷第3期

页      面：16-21页

学科分类：082902[工学-木材科学与技术] 08[工学] 0829[工学-林业工程] 

主　　题：fiber acetylation N-bromoscciniamide infrared spectroscopy nuclear magnetic resonance 

摘      要：Periploca sepium, Salix psammophila and Tamarix spp. make up an important part of the local vegetation in the sandland of China. This paper described a novel method on modification of the three shrub fibers as oil sorbents. Natural and modified fibers were chemically studied by non-destructive methods, infrared spectroscopy （IR） and cross-polarization nuclear magnetic resonance （CP-MAS ~3C-NMR）. The results show that during the reaction with acetic anhydride under mild conditions, the use of N-bromoscciniamide （NBS） catalyst resulted in a high weight percent gain （WPG）. The acetylation ofP sepium fiber gave rise to the highest WPG （20.0%） compared with S. psammophila and Tamarix spp. fiber. IR and CP-MAS ^13C-NMR analysis elaborates the chemical features of natural and acetylated willow fiber in detail.