화학공학소재연구정보센터
Polymer Bulletin, Vol.58, No.4, 703-709, 2007
Controlled degradation of porous poly(lactide) stereocomplex films prepared by the selective extraction of co-assembled poly(vinyl alcohol)
Poly(vinyl alcohol) (PVA) layers of different thicknesses were intercalated into stereocomplex films composed of poly(L-lactide) and poly(D-lactide). The immersion of composite films into boiling water selectively extracted the water-soluble PVA components, resulting in porous stereocomplex films. The hydrolytic properties of the porous films under alkaline conditions were then quantitatively analyzed. It was observed that the hydrolytic rates decreased with increasing pore sizes.