Ingeniería Investigación y Tecnología, volumen XVI (número 4), octubre-diciembre 2015: 491-501 ISSN 1405-7743 FI-UNAM (artículo arbitrado) AbstractMelt compounding was used to prepare thermoplastic composites reinforand the control of extrusion parameters were used to promote good disper--ties of the mixture, since the melt viscoelastic behavior is sensitive to changes in the molecular structures at nanoscale and mesoscale. The palygorskite nanoclay (diameter 30 nm) was extracted from a site in the southeast of the --to evaluate the interaction between the matrix and the nano-reinforcement. The master curves of storage modulus (G'), loss modulus (G") and complex vs x ) show a change of the interfacial interaction polypropylene/palygorskite when the palygorskite was chemically