Keywords Carboxymethyl Starches;Starch Derivatives;Degree of Substitution by Carboxymethyl;Synthesis;Mud Additive;Filtrate Loss Controller for Drilling Muds;

• 羧甲基淀粉醚;淀粉衍生物;羧甲基取代度;合成;钻井泥浆处理剂;钻井泥浆降失水剂;