Molecular weight controller for polymerization of lactams to...

Details Molecular weight controller for polymerization of lactams to... Molecular weight controller for polymerization of lactams to...

C - Chemistry, Metallurgy

08

G

402/228

C08G 69/14 (2006.01) C08G 69/16 (2006.01)

Patent

CA 1329441

MOLECULAR WEIGHT CONTROLLER FOR POLYMERIZATION OF LACTAMS TO POLYAMIDES ABSTRACT OF THE DISCLOSURE A molecular weight controller having particular application in the polymerization of a lactam, i.e., epsilon- caprolactam, 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.

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