Investigation of the hydrolysis of (3-triethoxysilylpropyl)succinic acid anhydride by means of FT-IR
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The kinetic data (rate constant, Arrhenius activation energy, frequency factor) of the hydrolysis reaction of the anhydride moiety of (3-triethoxysilylpropyl)succinic acid anhydride (TESP-SA) were investigated by means of FT-IR monitoring the decrease of the carbonyl stretching band at 1778 cm−1. The reaction had been conducted in an excess of water under acidic conditions (pseudo-first order reaction). In addition, the application of TESP-SA to cotton fabrics in conjunction with sodium hypophosphite as curing catalyst at elevated temperature (180 °C, 90 s) was tested. The dry crease recovery angle proved that no crosslinking reaction of the cellulose chains could be observed.
KeywordsCrosslinking Reaction Cellulosic Material Polycarboxylic Acid Sodium Hypophosphite Silicon Alkoxide
The authors are grateful to Testing Institute of the HTL Dornbirn for making available textile-physical equipment.
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