申请人:BASF Corporation
公开号:EP0329105A2
公开(公告)日:1989-08-23
A molecular weight controller having particular application in the polymerization of a lactam, i.e., epsiloncaprolactam, to a polyamide, i.e., poly(epsiloncaprolactam). The molecular weight controller comprises a primary monofunctional amine, i.e., benzylamine, a primary monofunctional acid, i.e., acetic acid, and a salified aminoacid containing an aromatic, a cyclohexane, or cyclopentane moiety, i.e., 4-(aminomethylbenzoic acid salified with p-toluenesulfonic acid. The resulting polyamide has a reduced water extractable content.
一种分子量控制器,特别适用于内酰胺(即epsiloncaprolactam)与聚酰胺(即 poly(epsiloncaprolactam))的聚合。分子量控制剂包括初级单官能胺(即苄胺)、初级单官能酸(即乙酸)和含有芳香族、环己烷或环戊烷分子的盐化氨基酸(即用对甲苯磺酸盐化的 4-氨甲基苯甲酸)。所得聚酰胺的水萃取含量降低。