Preparation of the Polylactide Copolymer by Surface Grafting with Microspheres
The microsphere copolymer [poly(St-co-HEMA)] of monodispersed styrene and 2-hydroxyethyl methacrylate(HEMA) was synthesized by suspension polymerization. New type of hydrophobic microsphere was synthesized by surface grafting polylactic acid using the hydroxyl-terminated of poly (St-co-HEMA) as initiator. The microspheres’ structures and properties were characterized by FT-IR, SEM and thermogravimetric analysis. The results have demonstrated that the copolymer [poly(St-co-HEMA)] is a random copolymer. The volume of the polylactide which was grafted with the microspheres can be controlled by changing the amount of microspheres and hydroxyl in microspheres.
Yuan Ming Huang
Y. S. Jin et al., "Preparation of the Polylactide Copolymer by Surface Grafting with Microspheres", Key Engineering Materials, Vols. 428-429, pp. 90-93, 2010