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Structure–property relationship in PCL/starch blend compatibilized with starch-g-PCL copolymer

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

Book ID
101273988
Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
238 KB
Volume
37
Category
Article
ISSN
0887-6266

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✦ Synopsis

The polycaprolactone (PCL)/starch blends were prepared by using the starch-g-PCL (SGCL) graft copolymers as compatibilizers, and their mechanical properties were correlated with the compatibilizing effect of the SGCL copolymers having various molecular structures. The modulus and strength of the PCL/starch blend were decreased, whereas the percent elongation and the toughness were increased remarkably with the addition of SGCL having appropriate graft structure. These property changes were analyzed in terms of the PCL crystallinity and the interfacial adhesion between the PCL matrix and starch dispersion phases, which were dominated by the compatibilizing effects of the SGCL copolymers.

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