PREPARATION AND SURFACE ACID-BASE PROPERTIES OF POROUS CELLULOSE

被引：0
|
作者：
Wang, Huanfeng [1 ]
Li, Bin [1 ]
Shi, Baoli
机构：
[1] NE Forestry Univ, Coll Sci, Heilongjiang Key Lab Mol Design & Preparat Flame, Harbin 150040, Peoples R China
来源：
BIORESOURCES | 2008年 / 3卷 / 01期
关键词：
Preparation; Characterization; Porous cellulose beads; Inverse gas chromatography; Scanning electron microscopy;
D O I：
暂无
中图分类号：
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号：
0805 ; 080502 ; 0822 ;
摘要：
Porous cellulose beads were prepared by solubilizing cellulose in sodium hydroxide/urea/sulfourea aqueous solution and then solidifying liquid beads in hydrochloric acid. Scanning electron microscopy (SEM) was used to characterize the morphologies of surface, cross section, and wall structures of the porous cellulose beads, which are folded and porous. The surface acid-base properties of porous cellulose beads were characterized in detail by inverse gas chromatography (IGC). The Lewis basic number K-b was found to be 0.854, which is indicative of a Lewis basic polymeric material. With the discussion of the results of SEM and IGC, a conclusion can be drawn that the porous cellulose beads showed a good ability of adsorbing the smoking tar of cigarettes.
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页码：3 / 12
页数：10
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