TY - JOUR
T1 - Effect of PEO-PPO-PEO copolymer on the mechanical and thermal properties and morphological behavior of biodegradable poly (L-lactic acid) (PLLA) and poly (butylene succinate-co-L-lactate) (PBSL) blends
AU - Vilay, V.
AU - Mariatti, M.
AU - Ahmad, Zulkifli
AU - Pasomsouk, K.
AU - Todo, Mitsugu
PY - 2011/12/1
Y1 - 2011/12/1
N2 - A blend of two biodegradable and semi-crystalline polymers, poly (L-lactic acid) (PLLA; 70wt%) and poly (butylene succinate-co-L-lactate) (PBSL; 30wt%), was prepared in the presence of various polyethylene oxide-polypropylene oxide-polyethylene oxide (PEO-PPO-PEO) triblock copolymer contents (0.5, 1, 2wt%). Mechanical, thermal properties, and Fourier transform infrared (FTIR) analysis of the blends were investigated. It was found that the addition of copolymer to PLLA/PBSL improved the fracture toughness of the blends as shown by mode I fracture energies. It was supported by morphological analysis where the brittle deformation behavior of PLLA changed to ductile deformation with the presence of elongated fibril structure in the blend with copolymer system. The glass transition temperature (Tg), melting temperature (Tm) of PLLA, and PBSL shift-closed together indicated that some compatibility exists in the blends. In short, PEO-PPO-PEO could be used as compatibilizer to improve the toughness and compatibility of the PLLA/PBSL blends.
AB - A blend of two biodegradable and semi-crystalline polymers, poly (L-lactic acid) (PLLA; 70wt%) and poly (butylene succinate-co-L-lactate) (PBSL; 30wt%), was prepared in the presence of various polyethylene oxide-polypropylene oxide-polyethylene oxide (PEO-PPO-PEO) triblock copolymer contents (0.5, 1, 2wt%). Mechanical, thermal properties, and Fourier transform infrared (FTIR) analysis of the blends were investigated. It was found that the addition of copolymer to PLLA/PBSL improved the fracture toughness of the blends as shown by mode I fracture energies. It was supported by morphological analysis where the brittle deformation behavior of PLLA changed to ductile deformation with the presence of elongated fibril structure in the blend with copolymer system. The glass transition temperature (Tg), melting temperature (Tm) of PLLA, and PBSL shift-closed together indicated that some compatibility exists in the blends. In short, PEO-PPO-PEO could be used as compatibilizer to improve the toughness and compatibility of the PLLA/PBSL blends.
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U2 - 10.1002/pat.1672
DO - 10.1002/pat.1672
M3 - Article
AN - SCOPUS:82155178906
SN - 1042-7147
VL - 22
SP - 1786
EP - 1793
JO - Polymers for Advanced Technologies
JF - Polymers for Advanced Technologies
IS - 12
ER -