An FTIR study of anhydride formation on heating butane-tetracarboxylic acid in the presence of various catalysts

被引:25
作者
Gillingham, EL [1 ]
Lewis, DM
Voncina, B
机构
[1] Univ Leeds, Dept Colour Chem, Leeds LS2 9JT, W Yorkshire, England
[2] Univ Maribor, Dept Mech Engn, Inst Text Chem, Maribor 2000, Slovenia
关键词
D O I
10.1177/004051759906901211
中图分类号
TB3 [工程材料学]; TS1 [纺织工业、染整工业];
学科分类号
0805 ; 080502 ; 0821 ;
摘要
Polycarboxylic acids containing more than three carboxylic acid groups react with hydroxyl groups in cotton cellulose and crosslink cotton through stable ester bonds. The aim of this research is to use variable temperature diffuse reflectance infrared spectroscopy to study anhydride formation from the thermal dehydration reaction of 1,2,3,4-butanetetracarboxylic acid (BTCA) in the presence of one of three catalysts-sodium carbonate, sodium hypophosphite, and cyanamide. An environmental chamber equipped with a temperature controller is attached to the infrared spectrometer to obtain diffuse reflectance spectra at elevated temperatures and ambient pressure. With this spectroscopic method, the temperature profile of anhydride formation from BTCA in the presence of a particular catalyst is clearly visible.
引用
收藏
页码:949 / 955
页数:7
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