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The effect of epoxy-functionalized chain extender on crystal growth and morphology of poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) |
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| รหัสดีโอไอ | |
| Creator | 1. Sitthi Duangphet 2. Damian Szegda 3. Jim Song 4. Karnik Tarverdi |
| Title | The effect of epoxy-functionalized chain extender on crystal growth and morphology of poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) |
| Publisher | Faculty of Engineering, Khon Kaen University |
| Publication Year | 2559 |
| Journal Title | KKU Engineering Journal |
| Journal Vol. | 43 |
| Journal No. | S3 |
| Page no. | 470-473 |
| Keyword | PHBV, Epoxy-functionalized, Chain extender, Crystallization, Growth rate |
| ISSN | 0125-8273 |
| Abstract | The crystal growth rate of melt-crystallized poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) reacting with epoxy-functionalized chain extender was investigated by wide angle X-ray diffraction and polarized optical microscopy (POM). The maximum concentration of chain extender in this work was limited to 1.00 % wt for food contact considerations. The WAXD results revealed that the quantity of chain extender used in this study had no effect on crystal structure and all chain-extended PHBV had a PHB-type crystal structure. The rate of crystal growth determined from POM at various crystallization temperatures confirmed that the addition of epoxy-functionalized chain extender delayed the crystal growth rate but did not change the crystal growth process and morphology. |
