Combined compatibilization and plasticization effect of low molecular weight poly(lactic acid) in poly(lactic acid)/poly(3-hydroxybutyrate-co-3-hydroxyvalerate) blends
Improving overall properties of poly(lactic acid) (PLA) by blending it with another biobased polymer has been a strong field of research over the last years. In this study we demonstrate the synergetic effect of a small amount (between 0.1 and 1 wt%) of oligomer-like PLA (oLA) on the thermal, mechan...
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| Language: | English |
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Budapest University of Technology and Economics
2018-02-01
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| Series: | eXPRESS Polymer Letters |
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| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0008615&mi=cd |
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| author | A. Amor N. Okhay A. Guinault G. Miquelard-Garnier C. Sollogoub M. Gervais |
| author_facet | A. Amor N. Okhay A. Guinault G. Miquelard-Garnier C. Sollogoub M. Gervais |
| author_sort | A. Amor |
| collection | DOAJ |
| description | Improving overall properties of poly(lactic acid) (PLA) by blending it with another biobased polymer has been a strong field of research over the last years. In this study we demonstrate the synergetic effect of a small amount (between 0.1 and 1 wt%) of oligomer-like PLA (oLA) on the thermal, mechanical and gas barrier properties of the widely studied PLA-poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) blends (90–10 wt%). Films of PLA/PHBV/oLA blends were prepared via single-screw extrusion. oLA being miscible with both PLA and PHBV, its compatibilizing effect was demonstrated by a decrease of the interfacial tension, a slight shift in the Tgs of both polymers, and an increase in the elongation at break. It was also showed that oLA had a plasticizing effect on the PHBV dispersed phase, increasing its crystallinity rate. This resulted in a decrease in the permeability of the films while improving Young’s modulus. |
| format | Article |
| id | doaj-art-ffeb6bb31a3042c9bc966944e87b5b4d |
| institution | Matheson Library |
| issn | 1788-618X |
| language | English |
| publishDate | 2018-02-01 |
| publisher | Budapest University of Technology and Economics |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj-art-ffeb6bb31a3042c9bc966944e87b5b4d2025-08-03T00:35:47ZengBudapest University of Technology and EconomicseXPRESS Polymer Letters1788-618X2018-02-0112211412510.3144/expresspolymlett.2018.10Combined compatibilization and plasticization effect of low molecular weight poly(lactic acid) in poly(lactic acid)/poly(3-hydroxybutyrate-co-3-hydroxyvalerate) blendsA. AmorN. OkhayA. GuinaultG. Miquelard-GarnierC. SollogoubM. GervaisImproving overall properties of poly(lactic acid) (PLA) by blending it with another biobased polymer has been a strong field of research over the last years. In this study we demonstrate the synergetic effect of a small amount (between 0.1 and 1 wt%) of oligomer-like PLA (oLA) on the thermal, mechanical and gas barrier properties of the widely studied PLA-poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) blends (90–10 wt%). Films of PLA/PHBV/oLA blends were prepared via single-screw extrusion. oLA being miscible with both PLA and PHBV, its compatibilizing effect was demonstrated by a decrease of the interfacial tension, a slight shift in the Tgs of both polymers, and an increase in the elongation at break. It was also showed that oLA had a plasticizing effect on the PHBV dispersed phase, increasing its crystallinity rate. This resulted in a decrease in the permeability of the films while improving Young’s modulus.http://www.expresspolymlett.com/letolt.php?file=EPL-0008615&mi=cdPolymer blends and alloysBiopolymersTougheningCompatibilizationBarrier properties |
| spellingShingle | A. Amor N. Okhay A. Guinault G. Miquelard-Garnier C. Sollogoub M. Gervais Combined compatibilization and plasticization effect of low molecular weight poly(lactic acid) in poly(lactic acid)/poly(3-hydroxybutyrate-co-3-hydroxyvalerate) blends eXPRESS Polymer Letters Polymer blends and alloys Biopolymers Toughening Compatibilization Barrier properties |
| title | Combined compatibilization and plasticization effect of low molecular weight poly(lactic acid) in poly(lactic acid)/poly(3-hydroxybutyrate-co-3-hydroxyvalerate) blends |
| title_full | Combined compatibilization and plasticization effect of low molecular weight poly(lactic acid) in poly(lactic acid)/poly(3-hydroxybutyrate-co-3-hydroxyvalerate) blends |
| title_fullStr | Combined compatibilization and plasticization effect of low molecular weight poly(lactic acid) in poly(lactic acid)/poly(3-hydroxybutyrate-co-3-hydroxyvalerate) blends |
| title_full_unstemmed | Combined compatibilization and plasticization effect of low molecular weight poly(lactic acid) in poly(lactic acid)/poly(3-hydroxybutyrate-co-3-hydroxyvalerate) blends |
| title_short | Combined compatibilization and plasticization effect of low molecular weight poly(lactic acid) in poly(lactic acid)/poly(3-hydroxybutyrate-co-3-hydroxyvalerate) blends |
| title_sort | combined compatibilization and plasticization effect of low molecular weight poly lactic acid in poly lactic acid poly 3 hydroxybutyrate co 3 hydroxyvalerate blends |
| topic | Polymer blends and alloys Biopolymers Toughening Compatibilization Barrier properties |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0008615&mi=cd |
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