The Perlon Series

Polyamides contain the amide group, —NH—CO—, in the main chain. They can be subdivided into two series. The monomeric unit and the repeating unit are identical in the Perlon series, but two monomeric units form one repeating unit in the Nylon series ... 

Polyamides from the Perlon series can be made from very different monomers using a large number of processes. The polycondensation of coamino acids. 

Because of these factors, polymers of the Perlon series are always produced via the lactams whenever the thermal stabilities of monomer and polymer allow. Lactams can be anionically, cationically, or hydrolytically polymerized. 

Commercially, polyamide 6 is the most important member of the Perlon series. It is also known under the name of poly(e-caprolactam) since it is exclusively produced by the polymerization of e-caprolactam. Caprolactam can be produced by several different processes ... 

Polyamides contain the amide group —NH—CO— and can be classified in two homologous series. In the Perlon series, monomeric and repeat units are identical, since these polyamides occur either by the polymerization of lactams (cyclic amides) or the polycondensation of co-amino carboxylic acids. In contrast, the polyamides in the Nylon series are formed by the poly condensation of diamines and dicarboxylic acids Thus, two monomeric units form one repeat unit. 

For polyamides of the Perlon series, —NH—R—CO— is the monomeric unit. Most commercial production is by polymerization of the... 

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