Effect of P(lLA-co-εCL) on the compatibility and crystallization behavior of PCL/PLLA blends

✍ Scribed by Chang-Hyeon Kim; Kuk Young Cho; Eui-Jun Choi; Jung-Ki Park

• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 196 KB
• Volume: 77
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(20000705)77:1<226::aid-app29>3.0.co;2-8

✦ Synopsis

This article describes the compatibility of two semicrystalline polymers, poly(-caprolactone) (PCL) and poly(l-lactic acid) (PLLA). The compatibility of the PCL/PLLA blends was enhanced by the compatibilizing effect of the poly(l,l-lactide-co--caprolactone) [P(lLA-co-CL)]. A discussion details the effect of the concentration of the compatibilizing agent, the copolymer of l,l-lactide and -caprolactone of a 50/50 mol ratio [P(lLA-co-CL)], on the compatibility and the crystallization behavior of the blends of PCL and PLLA. It was found that the addition of P(lLA-co-CL) could suppress the crystallization of PLLA at its T c and induced the concurrent crystallization of PLLA and PCL.