Preparation of lignopolyols from wheat straw soda lignin

机译：由小麦秸秆苏打木质素制备木质素多元醇

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Wheat straw soda lignin was modified and characterized by several qualitative and quantitative methods such as P NMR spectroscopy, to evaluate its potential as a substitute for polyols in view of polyurethane applications. Chemical modification of the lignin was achieved with propylene oxide to form ligno-polyol derivatives. This was performed by a two-step reaction of lignin with maleic anhydride followed by propylene oxide and by direct oxyalkylation under acidic and alkaline conditions. The physical and chemical properties of ligno-polyols from each method and the subsequent chain-extended hydroxyl groups were evaluated. Direct oxyalkylation of lignin under alkaline conditions was found to be more efficient than acidic conditions and more effective than the two-step process for preparing ligno-polyol with higher aliphatic hydroxyl contents.

机译：对小麦草汽水木质素进行了改性，并通过几种定性和定量方法（如P NMR光谱法）进行了表征，以评估其在聚氨酯应用中作为多元醇替代品的潜力。用环氧丙烷对木质素进行化学修饰以形成木质素-多元醇衍生物。这是通过木质素与马来酸酐的两步反应，然后是环氧丙烷，以及在酸性和碱性条件下的直接烷氧基化反应来进行的。评估了每种方法中木质素多元醇的物理和化学性质以及随后的扩链羟基。发现在碱性条件下木质素的直接氧烷基化比酸性条件更有效，并且比制备具有更高脂肪族羟基含量的木质素多元醇的两步法更有效。

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Ahvazi, Behzad; Wojciechowicz, Olivia; Ton-That, Tan-Minh; Hawari, Jalal;
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年度 2011
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正文语种 eng
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1. Preparation of Lignopolyols from Wheat Straw Soda Lignin [J] . Behzad Ahvazi, Olivia Wojciechowicz, Tan-Minh Ton-That Journal of Agricultural and Food Chemistry . 2011,第19期

机译：用小麦秸秆苏打木质素制备木质素多元醇
2. Comparative Research about Wheat Straw Lignin from the Black Liquor after Soda-Oxygen and Soda-AQ Pulping: Structural Changes and Pyrolysis Behavior [J] . Zhang Lilong, Chen Keli, Peng Lincai Energy & fuels . 2017,第10期

机译：苏打水和苏打水制浆后黑液中麦草木质素的比较研究：结构变化和热解行为
3. Catalytic hydroconversion of a wheat straw soda lignin: Characterization of the products and the lignin residue [J] . B.Joffres, C. Lorentz, M. Vidalie Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications . 2014,第Null期

机译：麦草汽水木质素的催化加氢转化：产物和木质素残留物的表征
4. PHENOLATION MODIFICATION OF WHEAT STRAW SODA LIGNIN AND ITS UTILIZATION IN LIGNIN-BASED PHENOLIC FORMALDEHYDE RESINS [C] . Liu Gangyong, Qiu Xueqing, Xing Desong, International symposium on emerging technologies of pulping and papermaking;ISETPP . 2006

机译：麦秸秆木质素的酚醛改性及其在木质素基酚醛树脂中的利用
5. Developing a continuous bisulfite postsulfonation process for the black liquor from soda pulping of wheat straw. [D] . Mao, Jingliang. 2006

机译：为小麦秸秆的苏打浆制黑液开发连续的亚硫酸氢盐后磺化工艺。
6. Characterization of wheat straw-degrading anaerobic alkali-tolerant mixed cultures from soda lake sediments by molecular and cultivation techniques [O] . Katharina Porsch, Balázs Wirth, Erika M Tóth, 2015

机译：分子和栽培技术表征苏打湖沉积物降解麦草的厌氧耐碱混合培养
7. Chemical Pulping of Straws. (II). Preparation of Lignin Dispersant from Black Liquor of Rice Straw Soda Cooking. [O] . Junzo Nakano, Yumiko Kitanaka, Yuko Tsuda, 1995

机译：吸管的化学制浆。（ii）。从稻草苏打水稻黑液中制备木质素分散剂。
8. Hydrolysis of solubilized hemicellulose derived from wet-oxidized wheat straw by a mixture of commercial fungal enzyme preparations [R] . Skammelsen Schmidt, A. , Thomsen, A. B. , Woidemann, A. , 1998

机译：通过商业真菌酶制剂的混合物水解来自湿氧化小麦秸秆的溶解的半纤维素

Preparation of lignopolyols from wheat straw soda lignin

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