degree of substitution ds

基本解釋

In this paper, the degree of substitution (DS)and reaction conditions variables on the viscosity of cationic starch pastes was studied.
合成了陽離子淀粉并對其糊液粘度進行了測定。探討了陽離子淀粉的糊液粘度與其取代度和性能的相互關(guān)系。
Carboxymethyl starch with degree of substitution(DS)0 6 has been made from corn starch, chloroacetic acid and sodium hydroxide, and with ethyl alcohol as solvent.
用玉米淀粉、氯乙酸和氫氧化鈉為原料，在乙醇溶劑中反應(yīng)制備了取代度為0．6的羧甲基淀粉。
Dodecenly succinic anhydride(DDSA) waxy corn starches with paste top viscosity and degree of substitution(DS) were prepared by the base catalyzed reaction with starch granular in aqueous slurry.
在堿性條件下，蠟質(zhì)玉米淀粉與十二烯基琥珀酸酐（DDSA）反應(yīng)可制得較高黏度、適宜取代度（DS）的酯化淀粉。