Aqueous polyurethane emulsion was prepared with polyoxytetramethylene glycol ( PTMG), isophorone diisocyanate ( IPDI), dimethylol propionic acid ( DMPA) and ethylene diamine ( EDA) as primary materials. 以聚四氢呋喃醚二醇(PTMG)、异氟尔酮二异氰酸酯(IPDI)、亲水单体二羟甲基丙酸(DMPA),乙二胺为主要原料,制备了稳定的水性聚氨酯乳液。
The synthesis of polyoxytetramethylene glycol ( PTMG) from tetrahydrofuran was investigated, using fuming sulfuric acid as catalyst. 本工作以四氢呋喃为原料、发烟硫酸为催化剂合成了聚四甲撑二醇(PTMG)。