Thermal Degradation of Poly(  ε  ‐caprolactone), Poly(L‐lactic acid) and their Blends with Poly(3‐hydroxy‐butyrate) Studied by TGA/FT‐IR Spectroscopy | Zendy

Vogel Christian | Zendy; Siesler Heinz W. | Zendy

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Thermal Degradation of Poly( ε ‐caprolactone), Poly(L‐lactic acid) and their Blends with Poly(3‐hydroxy‐butyrate) Studied by TGA/FT‐IR Spectroscopy

Author(s) -

Vogel Christian,

Siesler Heinz W.

Publication year - 2008

Publication title -

macromolecular symposia

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.257

H-Index - 76

eISSN - 1521-3900

pISSN - 1022-1360

DOI - 10.1002/masy.200850520

Subject(s) - caprolactone , degradation (telecommunications) , polymer chemistry , lactic acid , acetaldehyde , polymer , lactide , materials science , thermal decomposition , oxygen , biodegradable polymer , thermal stability , chemical engineering , copolymer , chemistry , organic chemistry , ethanol , composite material , telecommunications , biology , computer science , bacteria , engineering , genetics

Summary: The thermal degradation behavior of poly( ε ‐caprolactone) (PCL) and poly(L‐lactic acid) (PLA) have been studied in different environment. It was found that these polymers undergo completely different degradation processes in nitrogen and oxygen atmosphere. In oxygen environment PCL and PLA mainly decompose to CO 2 , CO, water and short‐chain acids. In nitrogen atmosphere PCL releases 5‐hexenioc acid, CO 2 , CO and ε‐caprolactone, whereas PLA decomposes to acetaldehyde, CO 2 , CO and lactide. The polymer blends of poly(3‐hydroxybutyrate) (PHB) with PCL and PLA decompose similar to the individual homopolymers with crotonic acid as the initial decomposition product of PHB.

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