Novel hydrophobic hemicelluloses: Synthesis and characteristic

doi:10.1016/j.carbpol.2012.02.064

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	Novel hydrophobic hemicelluloses: Synthesis and characteristic
	Ren Junli 1,2; Peng Xinwen 1; Zhong Linxin 3; Peng Feng 3; Sun Runcang 1,3
	2012-06-05
发表期刊	CARBOHYDRATE POLYMERS
卷号	89 期号:1 页码:152-157
摘要	Novel hydrophobic hemicelluloses possessing hydrophobic groups were prepared by the benzylation of wheat straw hemicelluloses with benzyl chloride under the presence of catalyst in an ethanol/water system. In particular, the progress of the benzylation reaction was studied as a function of the volume ratio of ethanol/water from 4:1 to 6:4, the molar ratio of NaOH/anhydroxylose unit in hemicelluloses from 0.6:1 to 1.5:1, the molar ratio of benzyl chloride/anhydroxylose unit in hemicelluloses from 0.5:1 to 2.0:1, reaction temperature 50-80 degrees C, and reaction time 4-20h. Benzylated hemicelluloses with the low degree of substitution from 0.09 to 0.35 were obtained depending on the experimental conditions. The incorporation of benzyl groups into the backbone of hemicelluloses was confirmed by FT-IR and C-13 NMR spectroscopies. The thermal stability increased after the modification of hemicelluloses due to the introduction of benzyl groups. The introduction of benzyl groups endows hemicelluloses with the hydrophobicity, which could be potentially applied in plastic industries. (C) 2012 Elsevier Ltd. All rights reserved.
文章类型	Article
关键词	Hemicelluloses Hydrophobicity Benzylation Characteristic
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1016/j.carbpol.2012.02.064
研究领域[WOS]	Chemistry ; Polymer Science
关键词[WOS]	WHEAT-STRAW HEMICELLULOSES ; XYLAN-RICH HEMICELLULOSES ; SUGARCANE BAGASSE HEMICELLULOSES ; STRUCTURAL-CHARACTERIZATION ; THERMAL CHARACTERIZATION ; IONIC LIQUID ; DERIVATIVES ; HYDROGELS ; CELLULOSE ; CATALYST
收录类别	SCI
语种	英语
WOS类目	Chemistry, Applied ; Chemistry, Organic ; Polymer Science
WOS记录号	WOS:000304632800023
引用统计	被引频次：32[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/10549
专题	中国科学院广州能源研究所
作者单位	1.S China Univ Technol, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China 3.Beijing Forestry Univ, Inst Biomass Chem & Technol, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Ren Junli,Peng Xinwen,Zhong Linxin,et al. Novel hydrophobic hemicelluloses: Synthesis and characteristic[J]. CARBOHYDRATE POLYMERS,2012,89(1):152-157.
APA	Ren Junli,Peng Xinwen,Zhong Linxin,Peng Feng,&Sun Runcang.(2012).Novel hydrophobic hemicelluloses: Synthesis and characteristic.CARBOHYDRATE POLYMERS,89(1),152-157.
MLA	Ren Junli,et al."Novel hydrophobic hemicelluloses: Synthesis and characteristic".CARBOHYDRATE POLYMERS 89.1(2012):152-157.