Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Novel hydrophobic hemicelluloses: Synthesis and characteristic | |
| Ren Junli1,2; Peng Xinwen1; Zhong Linxin3; Peng Feng3; Sun Runcang1,3 | |
| 2012-06-05 | |
| Source Publication | CARBOHYDRATE POLYMERS
 |
| Volume | 89Issue:1Pages:152-157 |
| Abstract | 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. |
| Subtype | Article |
| Keyword | Hemicelluloses Hydrophobicity Benzylation Characteristic |
| WOS Headings | Science & Technology ; Physical Sciences |
| DOI | 10.1016/j.carbpol.2012.02.064 |
| WOS Subject Extended | Chemistry ; Polymer Science |
| WOS Keyword | WHEAT-STRAW HEMICELLULOSES ; XYLAN-RICH HEMICELLULOSES ; SUGARCANE BAGASSE HEMICELLULOSES ; STRUCTURAL-CHARACTERIZATION ; THERMAL CHARACTERIZATION ; IONIC LIQUID ; DERIVATIVES ; HYDROGELS ; CELLULOSE ; CATALYST |
| Indexed By | SCI |
| Language | 英语 |
| WOS Subject | Chemistry, Applied ; Chemistry, Organic ; Polymer Science |
| WOS ID | WOS:000304632800023 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/10549 |
| Collection | 中国科学院广州能源研究所 |
| Affiliation | 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 |
| 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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