TY - JOUR
T1 - Low pressure and low temperature synthesis of polyamide-6 (PA6) using Na0 as catalyst
AU - Farias-Aguilar, Juan C.
AU - Ramírez-Moreno, Margarita J.
AU - Téllez-Jurado, Lucia
AU - Balmori-Ramírez, Heberto
N1 - Publisher Copyright:
© 2014 Elsevier B.V. All rights reserved.
PY - 2014
Y1 - 2014
N2 - 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 ε-caprolactam using metallic sodium as the catalytic agent in an inert atmosphere of N2. 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 ~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.
AB - 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 ε-caprolactam using metallic sodium as the catalytic agent in an inert atmosphere of N2. 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 ~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.
KW - Anionic polymerization
KW - Mechanical properties
KW - ε-Caprolactam
UR - http://www.scopus.com/inward/record.url?scp=84936998652&partnerID=8YFLogxK
U2 - 10.1016/j.matlet.2014.08.071
DO - 10.1016/j.matlet.2014.08.071
M3 - Artículo
SN - 0167-577X
VL - 136
SP - 388
EP - 392
JO - Materials Letters
JF - Materials Letters
ER -