期刊
CARBOHYDRATE POLYMERS
卷 108, 期 -, 页码 75-82出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2014.03.023
关键词
Cellulose acetate; Ionic liquid; Plasticizers; Extrusion; Thermo-mechanical properties; Relaxations
资金
- French Ministere de l'Enseignement Superieur et de la Recherche
Cellulose acetate (CA) plasticized by 1-butyl-3-methylimidazolium chloride (BMIMCl) and with diethylphtalate (DEP) was obtained by melt processing at 150 degrees C. The effect and the interaction of ionic liquid with the cellulose acetate and their influence on structural, thermo-mechanical, rheological and tensile properties of CA materials were investigated. Ionic liquid (BMIMCl) has shown a good plasticization and more efficient destruction of the crystalline structure of cellulose acetate than the DEP plasticized CA. BMIMCl interacts intensively with CA molecules due to the pronounced van der Waals interactions, hydrogen bonding and electrostatic nature of ionic liquid. The tensile test and the low Young's modulus for plasticized CA suggest a strong reduction of the interaction between the CA chains due to the presence of the ionic liquid. (C) 2014 Elsevier Ltd. All rights reserved.
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