Dissolution of cellulose with NMMO by microwave heating

被引：87
作者：
Dogan, Hacer [1 ]
Hilmioglu, Nilder Durmaz [2 ]
机构：
[1] TUBITAK Marmara Res Ctr, Chem & Environm Inst, TR-41470 Gebze, Turkey
[2] Kocaeli Univ, Fac Engn, Dept Chem Engn, Kocaeli, Turkey
来源：
CARBOHYDRATE POLYMERS | 2009年 / 75卷 / 01期
关键词：
Cellulose; NMMO; Cellulose dissolution; Microwave heating;
D O I：
10.1016/j.carbpol.2008.06.014
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Environmentally friendly microwave heating process was applied to the dissolution of cellulose in N-methylmorpholine-N-oxide (NMMO) with 105-490 W and 2450 MHz microwave energy until the dissolution completed. Microwave heating caused the decrease in the dissolution time and energy consumption. Cellulose/NMMO/water solutions with different cellulose concentrations were converted to the membrane to measure the crystallinity and degree of polymerization. It was shown that microwave heating with the power of 210 W is an alternative heating system for dissolution of cellulose in NMMO. The membranes obtained with two different heating methods showed the same crystallinity and degree of polymerization. As a result, microwave heating has an advantage in shortening reaction times, compared to conventional heating. (C) 2008 Elsevier Ltd. All rights reserved.
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页码：90 / 94
页数：5
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