In this article, we describe the synthesis and characterization of surface-modified polyamide-6, using poly-dichlorophosphazene and hexachlorocyclophosphazene as coupling agents. The solid surface of this polymer was modified first by the introduction of polar functions (C=O, CH, OR, COOH, COOR, etc.) with a cold plasma technique, then by the treatment of the alcoholic groups on the surface with (NPCl2)(n) and (NPCl2)(3) to graft these substrates through the formation of strong covalent P-O-C bonds, and eventually by the substitution of the residual chlorines on the polyamide-6 surface with different types of fluorinated alcohols (2,2,2-trifluoroethanol and heptadecafluorononanol) and with 4-hydroxyazobenzene. Contact-angle measurements, together with X-ray photoelectron spectroscopy and ultraviolet-visible spectroscopy techniques, support the occurrence of these surface-functionalization reactions.

Surface functionalization with phosphazenes: part 5. Surface modification of plasma-treated polyamide-6 with fluorinated alcohols and azobenzene derivatives through chlorinated phosphazene intermediates

MILANI, ROBERTO;BERTANI, ROBERTA;
2008

Abstract

In this article, we describe the synthesis and characterization of surface-modified polyamide-6, using poly-dichlorophosphazene and hexachlorocyclophosphazene as coupling agents. The solid surface of this polymer was modified first by the introduction of polar functions (C=O, CH, OR, COOH, COOR, etc.) with a cold plasma technique, then by the treatment of the alcoholic groups on the surface with (NPCl2)(n) and (NPCl2)(3) to graft these substrates through the formation of strong covalent P-O-C bonds, and eventually by the substitution of the residual chlorines on the polyamide-6 surface with different types of fluorinated alcohols (2,2,2-trifluoroethanol and heptadecafluorononanol) and with 4-hydroxyazobenzene. Contact-angle measurements, together with X-ray photoelectron spectroscopy and ultraviolet-visible spectroscopy techniques, support the occurrence of these surface-functionalization reactions.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/2459546
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