This work describes a study of functionalization of ethylene polymers with diethyl maleate (DEM) initiated by dicumyl peroxide (DCP). The functionalization degree (FD) has been determined by FT-IR and NMR spectroscopy and through comparison with reference mixtures of the same polyethylenes with poly(diethyl fumarate). A good linear correlation was obtained between the ratio A1/A2 (where A1 and A2 are the integrated areas of the vibrational bands at 1738 and 1460 cm(-1) respectively) and the content of grafted 2-(diethyl succinate) groups. The data obtained show that in all cases the FD is appreciably affected by the amount of DEM, DCP and by the DCP/DEM ratio, thus allowing one to devise experiments aimed at controlled chemical modifications and to propose a reasonable reaction mechanism.
|Autori:||Passaglia E; Marrucci M; Ruggeri G; Aglietto M|
|Titolo:||Chemical reactions affecting the free-radical grafting of diethyl maleate onto ethylene polymers|
|Anno del prodotto:||1997|
|Appare nelle tipologie:||1.1 Articolo in rivista|