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Cellulose Derivatives Synthesized via Isocyanate and Activated Ester Pathways in Homogeneous Solutions of Lithium Chloride/N,N-Dimethylacetamide

✍ Scribed by Williamson, Sheila L.; McCormick, Charles L.

Book ID: 121306490
Publisher: Taylor and Francis Group
Year: 1998
Tongue: English
Weight: 586 KB
Volume: 35
Category: Article
ISSN: 1060-1325
DOI: 10.1080/10601329808000987

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📜 SIMILAR VOLUMES

Structopendant unsaturated cellulose est

Structopendant unsaturated cellulose esters via acylation in homogeneous lithium chloride/N,N-dimethylacetamide solutions

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Novel acylation reactions of cellulose were accomplished with a series of unsaturated carboxylic acids or their respective anhydrides including crotonic acid (CRA), methacrylic acid (MAA), vinyl acetic acid (VAA), fumaric acid monoethyl ester (FAME), and cinnamic acid (CINA) in lithium chloride (LiC

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Cellulose dissolution in lithium chlorid

Cellulose dissolution in lithium chloride/N,N-dimethylacetamide solvent system: Relevance of kinetics of decrystallization to cellulose derivatization under homogeneous solution conditions

✍ Guilherme A. Marson; Omar A. El Seoud 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 229 KB 👁 2 views

Rate constants and activation parameters for decrystallization of Avicel PH-101 cellulose, and bagasse-based cellulose in presence of LiCl/N,N-dimethylacetamide solvent system have been determined from dependence of the index of crystallinity of cellulose, Ic, on time, under nonisothermal conditions

Competitive formation of cellulose p-tol

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The homogeneous preparation of a cellulose p-toluenesulfonate (tosylate) in N,N-dimethylaceta-mid+lithium chloride (DMAc-LiCl) is hampered by solvolysis of the p-toluenesulfonyl chloride (tosyl chloride). This Vilsmeier-Haack type reaction results in competitive formation of cellulosep-toluenesulfon