✦ LIBER ✦

Investigations about dissolution of cellulose in the LiCl/N,N-dimethylformamide system

✍ Scribed by B. Morgenstern; W. Berger

Publisher: John Wiley and Sons
Year: 1993
Tongue: English
Weight: 304 KB
Volume: 44
Category: Article
ISSN: 0323-7648
DOI: 10.1002/actp.1993.010440208

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Investigation of the cellulose/LiCl/dime

Investigation of the cellulose/LiCl/dimethylacetamide and cellulose/LiCl/N-methyl-2-pyrrolidinone solutions by 13C NMR spectroscopy

✍ Adel El-Kafrawy 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 English ⚖ 454 KB 👁 1 views

Esterification of wheat straw hemicellul

Esterification of wheat straw hemicelluloses in the N,N-dimethylformamide/lithium chloride homogeneous system

✍ J. M. Fang; Runcang Sun; P. Fowler; J. Tomkinson; C. A. S. Hill 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 220 KB 👁 1 views

The esterified hemicelluloses were prepared under homogeneous reaction conditions in the system N,N -dimethylformamide/lithium chloride by reacting the native hemicelluloses with various acyl chlorides (C 3 -C 18 ) in the presence of 4-dimethylaminopyridine as a catalyst and triethylamine as a base

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 👁 1 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

Dielectric investigation of the sol-gel

Dielectric investigation of the sol-gel transition in the acrylamide/N,N′ methylenebisacrylamide system

✍ Ferid Salehli; Huceste Çatalgil-Giz; Ahmet Giz; Orhan Kamer; Baki Altuncevahir 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 116 KB 👁 1 views

The acrylamide/N,NЈ-methylenebisacrylamide gelation process was studied by time dependent measurement of real ⑀ I and imaginary ⑀ II parts of the complex dielectric permittivity. The measurements were carried out in the frequency interval 500 Hz to 13 MHz. Strong relaxation behavior of ⑀ I and ⑀ II