Blends of poly(ε-caprolactone)-poly(fluoroalkylene oxide)-poly(ε-caprolactone) (PCL-PFPE-PCL) triblock copolymers (with different length of PFPE and PCL segments) and poly(vinyl chloride) (PVC) were prepared by casting from tetrahydrofuran solution. DSC analysis revealed a complex morphology deriving from miscibility between PCL and PVC segments. XPS analysis showed strong surface enrichment of PFPE segments for all films prepared. Treatment with a PFPE selective solvent showed that the fraction of PCL-PFPE-PCL removed from surface decreased with increasing length of PCL blocks, indicating an anchorage effect by PCL segments with respect to PVC matrix.
Poly(ε-caprolactone)-poly(fluoroalkylene oxide)-poly(ε-caprolactone) block copolymers as surface modifiers of poly(vinyl chloride) / Messori M.; Toselli M.; Pilati F.; Fabbri P.; Tonelli C.. - In: SURFACE COATINGS INTERNATIONAL. PART B, COATINGS TRANSACTIONS. - ISSN 1476-4865. - STAMPA. - 85:3(2002), pp. 197-201. [10.1007/BF02699509]
Poly(ε-caprolactone)-poly(fluoroalkylene oxide)-poly(ε-caprolactone) block copolymers as surface modifiers of poly(vinyl chloride)
Toselli M.;Fabbri P.;
2002
Abstract
Blends of poly(ε-caprolactone)-poly(fluoroalkylene oxide)-poly(ε-caprolactone) (PCL-PFPE-PCL) triblock copolymers (with different length of PFPE and PCL segments) and poly(vinyl chloride) (PVC) were prepared by casting from tetrahydrofuran solution. DSC analysis revealed a complex morphology deriving from miscibility between PCL and PVC segments. XPS analysis showed strong surface enrichment of PFPE segments for all films prepared. Treatment with a PFPE selective solvent showed that the fraction of PCL-PFPE-PCL removed from surface decreased with increasing length of PCL blocks, indicating an anchorage effect by PCL segments with respect to PVC matrix.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
