Synergistic effects of PEG middle-blocks and talcum on crystallizability and thermomechanical properties of flexible PLLA-b-PEG-b-PLLA bioplastic
In this study, talcum was melt-blended with a flexible poly(l-lactide)-b-polyethylene glycol-b-poly(l-lactide) triblock copolymer (PLLA-PEG-PLLA) with 1, 2, 4, and 8 wt% talcum, for improvement of the crystallization and thermomechanical properties of PLLA-PEG-PLLA compared with PLLA. The crystalliz...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2022-04-01
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| Series: | e-Polymers |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/epoly-2022-0040 |
| _version_ | 1811236595486949376 |
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| author | Srisuwan Yaowalak Baimark Yodthong |
| author_facet | Srisuwan Yaowalak Baimark Yodthong |
| author_sort | Srisuwan Yaowalak |
| collection | DOAJ |
| description | In this study, talcum was melt-blended with a flexible poly(l-lactide)-b-polyethylene glycol-b-poly(l-lactide) triblock copolymer (PLLA-PEG-PLLA) with 1, 2, 4, and 8 wt% talcum, for improvement of the crystallization and thermomechanical properties of PLLA-PEG-PLLA compared with PLLA. The crystallizability of PLLA-PEG-PLLA/talcum composites was better than that of PLLA/talcum composites as determined from differential scanning calorimetry. X-ray diffractometry showed that the PLLA-PEG-PLLA/talcum films had a higher degree of crystallinity than the PLLA/talcum films. PEG middle-blocks and talcum showed a synergistic effect for crystallization of PLLA end-blocks. The PLLA-PEG-PLLA/talcum films showed better thermomechanical properties than those of the PLLA/talcum films as determined from dynamic mechanical analysis. This was confirmed from the results of dimensional stability to heat. In summary, the PLLA-PEG-PLLA/talcum composites have potential for use as flexible bioplastics with good dimensional stability to heat. |
| first_indexed | 2024-04-12T12:10:40Z |
| format | Article |
| id | doaj.art-d02cfae5e86d44a5a8334b00ae8d6b4b |
| institution | Directory Open Access Journal |
| issn | 1618-7229 |
| language | English |
| last_indexed | 2024-04-12T12:10:40Z |
| publishDate | 2022-04-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | e-Polymers |
| spelling | doaj.art-d02cfae5e86d44a5a8334b00ae8d6b4b2022-12-22T03:33:35ZengDe Gruytere-Polymers1618-72292022-04-0122138939810.1515/epoly-2022-0040Synergistic effects of PEG middle-blocks and talcum on crystallizability and thermomechanical properties of flexible PLLA-b-PEG-b-PLLA bioplasticSrisuwan Yaowalak0Baimark Yodthong1Department of Chemistry and Centre of Excellence for Innovation in Chemistry, Biodegradable Polymers Research Unit, Faculty of Science, Mahasarakham University, Mahasarakham 44150, ThailandDepartment of Chemistry and Centre of Excellence for Innovation in Chemistry, Biodegradable Polymers Research Unit, Faculty of Science, Mahasarakham University, Mahasarakham 44150, ThailandIn this study, talcum was melt-blended with a flexible poly(l-lactide)-b-polyethylene glycol-b-poly(l-lactide) triblock copolymer (PLLA-PEG-PLLA) with 1, 2, 4, and 8 wt% talcum, for improvement of the crystallization and thermomechanical properties of PLLA-PEG-PLLA compared with PLLA. The crystallizability of PLLA-PEG-PLLA/talcum composites was better than that of PLLA/talcum composites as determined from differential scanning calorimetry. X-ray diffractometry showed that the PLLA-PEG-PLLA/talcum films had a higher degree of crystallinity than the PLLA/talcum films. PEG middle-blocks and talcum showed a synergistic effect for crystallization of PLLA end-blocks. The PLLA-PEG-PLLA/talcum films showed better thermomechanical properties than those of the PLLA/talcum films as determined from dynamic mechanical analysis. This was confirmed from the results of dimensional stability to heat. In summary, the PLLA-PEG-PLLA/talcum composites have potential for use as flexible bioplastics with good dimensional stability to heat.https://doi.org/10.1515/epoly-2022-0040poly(lactic acid)polyethylene glycolblock copolymertalcumnucleating agent |
| spellingShingle | Srisuwan Yaowalak Baimark Yodthong Synergistic effects of PEG middle-blocks and talcum on crystallizability and thermomechanical properties of flexible PLLA-b-PEG-b-PLLA bioplastic e-Polymers poly(lactic acid) polyethylene glycol block copolymer talcum nucleating agent |
| title | Synergistic effects of PEG middle-blocks and talcum on crystallizability and thermomechanical properties of flexible PLLA-b-PEG-b-PLLA bioplastic |
| title_full | Synergistic effects of PEG middle-blocks and talcum on crystallizability and thermomechanical properties of flexible PLLA-b-PEG-b-PLLA bioplastic |
| title_fullStr | Synergistic effects of PEG middle-blocks and talcum on crystallizability and thermomechanical properties of flexible PLLA-b-PEG-b-PLLA bioplastic |
| title_full_unstemmed | Synergistic effects of PEG middle-blocks and talcum on crystallizability and thermomechanical properties of flexible PLLA-b-PEG-b-PLLA bioplastic |
| title_short | Synergistic effects of PEG middle-blocks and talcum on crystallizability and thermomechanical properties of flexible PLLA-b-PEG-b-PLLA bioplastic |
| title_sort | synergistic effects of peg middle blocks and talcum on crystallizability and thermomechanical properties of flexible plla b peg b plla bioplastic |
| topic | poly(lactic acid) polyethylene glycol block copolymer talcum nucleating agent |
| url | https://doi.org/10.1515/epoly-2022-0040 |
| work_keys_str_mv | AT srisuwanyaowalak synergisticeffectsofpegmiddleblocksandtalcumoncrystallizabilityandthermomechanicalpropertiesofflexiblepllabpegbpllabioplastic AT baimarkyodthong synergisticeffectsofpegmiddleblocksandtalcumoncrystallizabilityandthermomechanicalpropertiesofflexiblepllabpegbpllabioplastic |