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Morphology and hydrolysis of PCL/PLLA blends compatibilized with P(LLA‐co‐ϵCL) or P(LLA‐b‐ϵCL)
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AbstractThe effect of the compatibilizers, P(LLA‐co‐ϵCL) and P(LLA‐b‐ϵCL), on the morphology and hydrolysis of the blend of poly(ϵ‐caprolactone) (PCL) and poly(L‐lactide) (PLLA) was investigated. An addition of P(LLA‐co‐ϵCL) or P(LLA‐b‐ϵCL) into the blend could enhance the compatibility between the dispersed PCL domains and the PLLA matrix. The size of the PCL domains in the PLLA/PCL (70/30) blend containing P(LLA‐co‐ϵCL) reduced more significantly with an increase in the content of the compatibilizer than that in the blend containing P(LLA‐b‐ϵCL). The molecular weight of the PLLA/PCL blend films compatibilized with P(LLA‐co‐ϵCL) or P(LLA‐b‐ϵCL) decreased during the hydrolysis and the decrease of the molecular weight of the blend films compatibilized with P(LLA‐co‐ϵCL) was much more significant than that of the blend films compatibilized with P(LLA‐b‐ϵCL). © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 86: 1892–1898, 2002
Title: Morphology and hydrolysis of PCL/PLLA blends compatibilized with P(LLA‐co‐ϵCL) or P(LLA‐b‐ϵCL)
Description:
AbstractThe effect of the compatibilizers, P(LLA‐co‐ϵCL) and P(LLA‐b‐ϵCL), on the morphology and hydrolysis of the blend of poly(ϵ‐caprolactone) (PCL) and poly(L‐lactide) (PLLA) was investigated.
An addition of P(LLA‐co‐ϵCL) or P(LLA‐b‐ϵCL) into the blend could enhance the compatibility between the dispersed PCL domains and the PLLA matrix.
The size of the PCL domains in the PLLA/PCL (70/30) blend containing P(LLA‐co‐ϵCL) reduced more significantly with an increase in the content of the compatibilizer than that in the blend containing P(LLA‐b‐ϵCL).
The molecular weight of the PLLA/PCL blend films compatibilized with P(LLA‐co‐ϵCL) or P(LLA‐b‐ϵCL) decreased during the hydrolysis and the decrease of the molecular weight of the blend films compatibilized with P(LLA‐co‐ϵCL) was much more significant than that of the blend films compatibilized with P(LLA‐b‐ϵCL).
© 2002 Wiley Periodicals, Inc.
J Appl Polym Sci 86: 1892–1898, 2002.
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