Details

Autor(en) / Beteiligte

• Guo, Ya Cui
• Wang, Pi Xin
• Wu, Xiu Li

Titel

Preparation and Characterization of High-Substituted Cationic Starches in Aqueous Solutions

Ist Teil von

• Applied Mechanics and Materials, 2013-01, Vol.268-270, p.555-558

Ort / Verlag

Zurich: Trans Tech Publications Ltd

Erscheinungsjahr

2013

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• In the presence of alkaline catalyst NaOH,the cationic corn starches bearing quaternary amino group with high degree of substitution are prepared by the reaction of the starch with 2, 3- epoxy propyl trimethylammonium chloride (ETA) in aqueous solutions.Under the conditions of molar ratio anhydroglucose/ETA/alkali =1: 4.0: 0.2025, reaction temperature 60°C and reaction time 6h, degree of substitution of the product is 1.0959. Structure of the product is characterized by FTIR and 13C NMR spectroscopy.X-ray diffraction indicates that the crystal structure of the native starch is destroyed and disordered structure of cationic starch is formed.