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.

引用

页码：90 / 94

页数：5

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