醋酸丁酸纤维素在离子液体中的均相合成
Homogeneous synthesis of cellulose acetate butyrates in ionic liquid
查看参考文献11篇
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文摘
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@@ 纤维素醋酸丁酸混合酯(CAB)由于具有出色的溶解性而广泛应用于木器涂料、塑料涂料中.同时由于它们有优良的树脂相容性、耐光性及耐寒性,在高档汽车涂料及印刷油墨等领域具有重要应用~([1]).可以说纤维素混合酯的出现提供了进一步改善纤维素酯性质的可能性.目前生产纤维素混合酯的工艺路线都是在非均相体系中进行的,利用精制棉短绒或木桨粕为原料,以硫酸为催化剂,两种酸酐与纤维素在酸性溶液条件下先制得全取代的纤维素酯,再经过水解、中和、过滤、水洗等工序制成不同酸值、不同黏度的纤维素混合酯~([2]). |
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其他语种文摘
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Cellulose acetate butyrates (CAB) were homogeneously synthesized in an ionic liquid, 1-allyl-3-methyl-imidazolium chloride (AmimCl). By a sequence of first adding butyric anhydride and then acetic anhydride in the cellulose/AmimCl solutions, CAB products with the butyryl contents ranging from 33% to 47% (mass) were obtained. NMR analysis showed that among the three OH groups of the anhydroglucose unit (AGU) of the synthesized CAB, the distribution of the butyryl moieties showed a preference at the C6 position, while the partial degree of substitution of acetyl moieties at the C6 position showed the minimum values. Solubility measurement showed that CAB samples readily dissolved in the common organic solvents, such as methyl ethyl ketone, dichloromethane, and ethyl acetate. |
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来源
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化工学报
,2009,60(7):1855-1858 【核心库】
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关键词
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醋酸丁酸纤维素
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均相合成
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AmimCl离子液体
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溶解性
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地址
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1.
中国科学院过程工程研究所, 绿色过程与工程院重点实验室, 北京, 100190
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中国科学院化学研究所, 工程塑料院重点实验室, 北京, 100190
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0438-1157 |
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学科
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化学工业 |
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基金
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国家973计划
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文献收藏号
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CSCD:3506257
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参考文献 共
11
共1页
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1.
许冬生.
纤维素衍生物,2001
|
被引
24
次
|
|
|
|
|
2.
黄彩结. 醋酸丁酸纤维素的非均相合成法.
涂料工业,2008,38(6):40-45
|
被引
2
次
|
|
|
|
|
3.
任天瑞. 纤维素的均相化学反应.
化学进展,2004,16(6):948-953
|
被引
7
次
|
|
|
|
|
4.
El Seoud O A. An efficient,one-pot acylation of cellulose under homogenous reaction conditions.
Macromolecular Chemistry and Physics,2000,201:882-889
|
被引
7
次
|
|
|
|
|
5.
Swatloski R P. Dissolution of cellulose with ionic liquids.
Journal of the American Chemical Society,2002,124(18):4974-4975
|
被引
364
次
|
|
|
|
|
6.
Heinze T. Ionic liquid as reaction medium in cellulose functionalization.
Macromolecular Bioscience,2005,5:520-525
|
被引
64
次
|
|
|
|
|
7.
Fukaya Y. Superior solubility of polysaccharides in low viscosity,polar,and halogen-free 1,3-dialkylimidazolium formats.
Biomacromolecules,2006,7:3295-3297
|
被引
39
次
|
|
|
|
|
8.
任强. 1-烯丙基，3-甲基咪唑室温离子液体的合成及其对纤维素溶解性能的初步研究.
高分子学报,2003(3):448-451
|
被引
96
次
|
|
|
|
|
9.
Wu Jin. Homogeneous acetylation of cellulose in a new ionic liquid.
Biomacromolecules,2004,5(2):266-268
|
被引
77
次
|
|
|
|
|
10.
Cao Y. Acetone-soluble cellulose acetates prepared by one-step homogeneous acetylation of cornhusk cellulose in an ionic liquid 1-allyl-3-methylimidazolium chloride (AmimCl).
Carbohydrate Polymers,2007,69:665-672
|
被引
19
次
|
|
|
|
|
11.
Yasuyuki T. 13C NMR determination of the distribution of two ester substituents in cellulose acetate butyrate.
Carbohydrate Research,1993,241:285-290
|
被引
1
次
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