Low pressure and low temperature synthesis of polyamide-6 (PA6) using Na-0 as catalyst

作者：Farias Aguilar Juan C^*; Ramirez Moreno Margarita J; Tellez Jurado Lucia; Balmori Ramirez Heberto

来源：Materials Letters, 2014, 136: 388-392.

DOI：10.1016/j.matlet2014.08.071

• Anionic polymerization
• epsilon-Caprolactam
• Mechanical properties

The synthesis and use of plastic materials in several industrial areas has been increasing rapidly in the last century. Among the known plastics, the polyamides have excellent mechanical properties as high strength and wear resistance. This study reports a novel bath synthesis process to obtain polyamide-6 (PA6) from epsilon-caprolactam using metallic sodium as the catalytic agent in an inert atmosphere of N-2. During the synthesis process that was proposed, contrary to conventional industrial processes which involve the use of high pressures, the reaction was carried out at atmospheric pressure. The conversion degree was similar to 90-95% and the degree of crystallinity was 36%; the mechanical properties like tensile strength and Charpy impact obtained were similar to that previously reported in the literature.

• 出版日期2014-12-1