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Novel hydrophobic hemicelluloses: Synthesis and characteristic
Ren Junli1,2; Peng Xinwen1; Zhong Linxin3; Peng Feng3; Sun Runcang1,3
2012-06-05
Source PublicationCARBOHYDRATE POLYMERS
Volume89Issue:1Pages:152-157
AbstractNovel 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.
SubtypeArticle
KeywordHemicelluloses Hydrophobicity Benzylation Characteristic
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.carbpol.2012.02.064
WOS Subject ExtendedChemistry ; Polymer Science
WOS KeywordWHEAT-STRAW HEMICELLULOSES ; XYLAN-RICH HEMICELLULOSES ; SUGARCANE BAGASSE HEMICELLULOSES ; STRUCTURAL-CHARACTERIZATION ; THERMAL CHARACTERIZATION ; IONIC LIQUID ; DERIVATIVES ; HYDROGELS ; CELLULOSE ; CATALYST
Indexed BySCI
Language英语
WOS SubjectChemistry, Applied ; Chemistry, Organic ; Polymer Science
WOS IDWOS:000304632800023
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10549
Collection中国科学院广州能源研究所
Affiliation1.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
Recommended Citation
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.
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