Morphology of inorganic–organic systems consisting of polyhedral oligomeric silsesquioxanes (POSS) and polyamide 6
Articolo
Data di Pubblicazione:
2009
Citazione:
Morphology of inorganic–organic systems consisting of polyhedral oligomeric silsesquioxanes (POSS) and polyamide 6 / J. Alongi, O. Monticelli, S. Russo, J. Galy, J. Gérard. - In: E-POLYMERS. - ISSN 1618-7229. - 9:1(2009), pp. 325-341. [10.1515/epoly.2009.9.1.325]
Abstract:
Preparation of inorganic-organic hybrids made of polyhedral oligomeric silsesquioxanes (POSS) and polyamide 6 (PA6) has been attempted either by melt mixing of the two components or by in-situ polymerization of e-caprolactam (CL) in presence of POSS. The samples have been characterized by wide angle X-ray diffraction (WAXD) and scanning electron microscopy (SEM) techniques. Specific processing conditions (namely, high T in presence of different shear stresses) have been tested. Two different approaches for melt mixing have been used and the morphology of the corresponding systems compared. The melt-mixed pairs prepared in the microcompounder revealed a coarse phase separation, while those made in a simple mixer did not show any perceivable POSS segregation phenomenon, as evidenced by both WAXD data and SEM investigation. Similarly, the in-situ polymerization of CL in presence of POSS did not result in any POSS self-aggregation in the polyamide matrix, achieving a very fine Si dispersion of nanometric dimensions.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
POSS; PA 6; polyamide; e-caprolactam; nano composites
Elenco autori:
J. Alongi, O. Monticelli, S. Russo, J. Galy, J. Gérard
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