dc.contributor.author |
Androsch R. |
|
dc.contributor.author |
Zhang R. |
|
dc.contributor.author |
Schick C. |
|
dc.date.accessioned |
2020-01-21T20:33:20Z |
|
dc.date.available |
2020-01-21T20:33:20Z |
|
dc.date.issued |
2019 |
|
dc.identifier.issn |
0032-3861 |
|
dc.identifier.uri |
https://dspace.kpfu.ru/xmlui/handle/net/157404 |
|
dc.description.abstract |
© 2019 Elsevier Ltd The kinetics of melt-recrystallization and the stability of crystal self-nuclei of poly (L-lactic acid) initially containing disordered α′-crystals with a melting temperature of around 150 °C has been analyzed using specifically designed fast scanning chip calorimetry experiments (FSC). In general, the rate of recrystallization of the melt after complete melting of α′-crystals decreases with increasing melt-temperature mainly due to the lowering of the self-nuclei concentration. Self-nuclei of highest stability survive up to about 170 °C. The concentration of self-nuclei/α′-crystal remnants at a specific melt-temperature between 150 and 170 °C is independent on time, that is, only the temperature of the melt controls the self-nuclei content. Combining fast scanning calorimetry with polarized-light optical microscopy and with atomic force microscopy allows studying the semicrystalline morphology of samples of different self-nucleation history, providing direct information about the self-nuclei concentration in the various melts. |
|
dc.relation.ispartofseries |
Polymer |
|
dc.subject |
Crystal nucleation |
|
dc.subject |
Crystallization |
|
dc.subject |
Poly (L-lactic acid) (PLLA) |
|
dc.subject |
Recrystallization |
|
dc.subject |
Self-nucleation |
|
dc.title |
Melt-recrystallization of poly (L-lactic acid) initially containing α′-crystals |
|
dc.type |
Article |
|
dc.relation.ispartofseries-volume |
176 |
|
dc.collection |
Публикации сотрудников КФУ |
|
dc.relation.startpage |
227 |
|
dc.source.id |
SCOPUS00323861-2019-176-SID85066106986 |
|