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Characterization and processing of Biodegradable polymer blends of poly(lactic acid) with poly(butylene succinate adipate)  

Lee, Sang-Mook (Department of Applied chemistry, Dongduk Women's University)
Lee, Jae-Wook (Applied Rheology Center, Department of Chemical Engineering, Sogang University)
Publication Information
Korea-Australia Rheology Journal / v.17, no.2, 2005 , pp. 71-77 More about this Journal
Abstract
We investigated thermal, rheological, morphological and mechanical properties of a binary blend of poly(lactic acid) (PLA) and poly(butylene succinate adipate) (PBSA). The blends were extruded and their molded properties were examined. DSC thermograms of blends indicated that the thermal properties of PLA did not change noticeably with the amount of PBSA, but thermogravimetric analysis showed that thermal stability of the blends was lower than that of pure PLA and PBSA. Immiscibility was checked with thermal data. The rheological properties of the blends changed remarkably with composition. The tensile strength and modulus of blends decreased with PBSA content. Interestingly, however, the impact strength of PLA/PBSA (80/20) blend was seriously increased higher than the rule of mixture. Morphology of the blends showed a typical sea and island structure of immiscible blend. The effect of the blend composition on the biodegradation was also investigated. In the early stage of the degradation test, the highest rate was observed for the blend containing $80wt\%$ PBSA.
Keywords
poly(butylene succinate adipate); poly(lactic acid); biodegradable; BOD5;
Citations & Related Records

Times Cited By Web Of Science : 26  (Related Records In Web of Science)
Times Cited By SCOPUS : 17
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1 Miyata, T. and T. Masuko, 1998, Crystallization behaviour of poly(L-lactide), Polymer 39, 5515-5521   DOI   ScienceOn
2 Nijenhuis, A. J., E. Colstee, D. W. Grijpma and A. J. Pennings, 1996, High molecular weight poly(L-lactide) and poly(ethylene oxide) blends: thermal characterization and physical properties, Polymer 37, 5849-5857   DOI   ScienceOn
3 Nishioka, M., T. Tuzuki, Y. Wanajyo, H. Oonami and T. Horiuchi, 1994, Japan Stud. Polym. Sci. 12, 584-590
4 Schwacch, M. Ver and G., J. Coudance, 1995, J. Macromol. Sci. Pure Appl. Chem. A32, 787
5 Tsuji, H. and Y. J. Ikada, 1998, Blends of aliphatic polyesters. II. Hydrolysis of solution-cast blends from poly (L-lactide) and poly ($\epsilon$-caprolactone) in phosphate-buffered solution, J. Appl. Polym. Sci. 67, 405-415   DOI   ScienceOn
6 Perego, G., G. D. Cella and C. Bastioli, 1996, Effect of molecular weight and crystallinity on poly(lactic acid) mechanical properties, J. Appl. Polym. Sci. 59, 37-43   DOI
7 Van Krevelen, D. W., 1990, Properties of Polymers, Elsevier
8 Wu, S., 1985, Phase structure and adhesion in polymer blends: A criterion for rubber toughening, Polymer 26, 1855-1863   DOI   ScienceOn
9 Grijpma, D. W., R. D. A. Van Hofslot, H. Super, A. J. Nijenhuis and A. J. Pennings, 1994, Rubber toughening of poly (lactide) by blending and block copolymerization, Polym. Eng. Sci. 34, 1674-1684   DOI   ScienceOn
10 Huang, S. J., 1985, Encycl Polym Sci Eng 2: Biodegradable polymers. Wiley-Interscience, New York
11 Martin O. and L. Averous, 2001, Poly(lactic acid): plasticization and properties of biodegradable multiphase systems, Polymer 42, 6209-6219   DOI   ScienceOn
12 Cai, H., V. Dave, R. A. Gross and S. P. McCarthy, 1996, Effects of physical aging, crystallinity, and orientation on the enzymatic degradation of poly (lactic acid), J. Polym. Sci. Part B: Polymer Physics 40, 2701-2708   DOI   ScienceOn
13 Liu, X., M. Dever, N. Fair and R. X. Benson, 1997, J. Environ. Polym. Degrad. 5, 225
14 Roberts, R. C., 1970, The melting behavior of bulk crystallized polymers, J. Polym. Sci. PartB: Polym. Letters 8, 381-384   DOI
15 Zhang, L., S. H. Goh and S. Y. Lee, 1998, Miscibility and crystallization behaviour of poly(L-lactide)/poly(p-vinylphenol) blends, Polymer 39, 4841-4847   DOI   ScienceOn
16 Sweet, G. E. and J. P. Bell, 1972, Multiple endotherm melting behavior in relation to polymer morphology, J. Polym. Sci. Part A-2: Polymer Physics 10, 1273-1283   DOI
17 Tokiwa, Y. and T. Suzuki, 1981, Hydrolysis of copolyesters containing aromatic and aliphatic ester blocks by lipase, J. Appl. Polym. Sci. 26, 441-448   DOI   ScienceOn
18 Mayer, J. M. and D. L. Kaplan, 1994, Trends in Polymer Science 2, 227-235
19 Lunt, J., 1998, Large-scale production, properties and commercial applications of polylactic acid polymers, Polym. Degrad. Stab. 59, 145-152   DOI   ScienceOn