Hydrolysis of chitosan under microwave irradiation in ionic liquids promoted by sulfonic acid-functionalized ionic liquids

被引：27

作者：

Chen, Qin ^{[1
]}

Xiao, Wenjun ^{[2
]}

Zhou, Lilong ^{[1
]}

Wu, Tinghua ^{[1
]}

Wu, Ying ^{[1
]}

机构：

[1] Zhejiang Normal Univ, Zhejiang Key Lab React Chem Solid Surfaces, Inst Phys Chem, Jinhua 321004, Peoples R China

[2] Xiamen Univ, Coll Mat, Key Lab Fire Retardant Mat Fujian Prov, Xiamen 361005, Fujian, Peoples R China

来源：

POLYMER DEGRADATION AND STABILITY | 2012年 / 97卷 / 01期

关键词：

Chitosan; Hydrolysis; Sulfonic acid-functionalized ionic liquids; Microwave irradiation; ANTIBACTERIAL ACTIVITY; WATER; DISSOLUTION; DEGRADATION; OLIGOMERS; CHLORIDE; WOOD;

D O I：

10.1016/j.polymdegradstab.2011.10.014

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Hydrolysis of chitosan in ionic liquids was carried out under microwave irradiation (MW) using sulfonic acid-functionalized ionic liquids (SFILs) as catalysts. The effect of microwave power, irradiation time, dosage of SFILs and DMSO was investigated by orthogonal tests. Under the optimal reaction conditions, the yield of total reducing sugars (TRS) reached over 90% within 2 min. The viscosity-average molecular weight of degraded chitosan was determined by viscosity method. The structures of the original and degraded chitosan were characterized by Fourier-transform infrared (FUR) spectra, X-ray powder diffraction (XRD) analysis and carbon-13 nuclear magnetic resonance spectroscopy (C-13 NMR). The influence of microwave power and irradiation time on the TRS and M-v was further studied. This method can dramatically reduce reaction time. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：49 / 53

页数：5

共 50 条

[21] Structural and Hydrolysis Characteristics of Cypress Pretreated by Ionic Liquids in a Microwave Irradiation Environment
Xu, Ji-Kun
Sun, Yong-Chang
Sun, Run-Cang
BIOENERGY RESEARCH, 2014, 7 (04) : 1305 - 1316
[22] Efficient Thiolation of Alcohols Catalyzed by Long Chained Acid-Functionalized Ionic Liquids under Mild Conditions
Miao, Chengxia
Zhuang, Hongfeng
Wen, Yating
Han, Feng
Yang, Qing-Feng
Yang, Lei
Li, Zhen
Xia, Chungu
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, 2019, 2019 (19) : 3012 - 3021
[23] Microwave-promoted synthesis of polyhydroxydeoxybenzoins in ionic liquids
Hakala, Ullastiina
Wahala, Kristiina
TETRAHEDRON LETTERS, 2006, 47 (47) : 8375 - 8378
[24] The Novel SO3H-functionalized Ionic Liquids Promoted Synthesis of Xanthenedione Derivatives in Aqueous Media Under Microwave Irradiation
Li, Bai Lin
Liang, Hua Ding
Zhong, Ai Guo
Xu, Dan Qian
CHEMICAL ENGINEERING AND MATERIAL PROPERTIES, PTS 1 AND 2, 2012, 391-392 : 1354 - +
[25] Significant effects of the anion on the catalytic behaviour of sulfonic acid-functionalized ionic liquids in transesterification reactions - A combined electrochemical/catalytic study
Martini, Maria B.
Adam, Claudia G.
Fernandez, Jose L.
MOLECULAR CATALYSIS, 2021, 513
[26] Thermal properties of sulfonic acid group functionalized Brönsted acidic ionic liquids
Ananda S. Amarasekara
Onome S. Owereh
Journal of Thermal Analysis and Calorimetry, 2011, 103 : 1027 - 1030
[27] An efficient intramolecular Stetter reaction in room temperature ionic liquids promoted by microwave irradiation
Zhou, Zhong-Zhen
Ji, Feng-Qing
Cao, Min
Yang, Guang-Fu
ADVANCED SYNTHESIS & CATALYSIS, 2006, 348 (14) : 1826 - 1830
[28] Improved preparations of ionic liquids using microwave irradiation
Deetlefs, M
Seddon, KR
GREEN CHEMISTRY, 2003, 5 (02) : 181 - 186
[29] Demethylation of Aromatic Methyl Ethers Using Ionic Liquids under Microwave Irradiation
Passiniemi, Mikko
Myllymaki, Mikko J.
Vuokko, Juha
Koskinen, Ari M. P.
LETTERS IN ORGANIC CHEMISTRY, 2011, 8 (01) : 48 - 52
[30] Rapid Conversion of Sorbitol to Isosorbide in Hydrophobic Ionic Liquids under Microwave Irradiation
Kamimura, Akio
Murata, Kengo
Tanaka, Yoshiki
Okagawa, Tomoki
Matsumoto, Hiroshi
Kaiso, Kouji
Yoshimoto, Makoto
CHEMSUSCHEM, 2014, 7 (12) : 3257 - 3259

← 1 2 3 4 5 →