Preparation of LLDPE functionalized by chitosan and research on its surface properties

摘要

Acrylic acid was introduced on to O2 plasma pretreated LLDPE membrane surfaces by UV induced graft polymerization without photo initiator. Then the functional LLDPE copolymers was obtained by using chitosan as graft monomer. The surface properties of functional graft copolymers were characterized by ATR-FTIR, contact angles, XPS and SEM. It showed that the surface wettability of grafted LLDPE was better than that of LLDPE and the surface of functional LLDPE was procoagulant.