Please use this identifier to cite or link to this item:
https://doi.org/10.1016/S0032-3861(97)10167-7
DC Field | Value | |
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dc.title | Miscibility and crystallization behaviour of poly(L-lactide)/poly(p-vinylphenol) blends | |
dc.contributor.author | Zhang, L. | |
dc.contributor.author | Goh, S.H. | |
dc.contributor.author | Lee, S.Y. | |
dc.date.accessioned | 2014-10-16T08:33:48Z | |
dc.date.available | 2014-10-16T08:33:48Z | |
dc.date.issued | 1998-09 | |
dc.identifier.citation | Zhang, L., Goh, S.H., Lee, S.Y. (1998-09). Miscibility and crystallization behaviour of poly(L-lactide)/poly(p-vinylphenol) blends. Polymer 39 (20) : 4841-4847. ScholarBank@NUS Repository. https://doi.org/10.1016/S0032-3861(97)10167-7 | |
dc.identifier.issn | 00323861 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/94244 | |
dc.description.abstract | The miscibility of poly(L-lactide) (PLLA)/poly(p-vinylphenol) (PVPh) blends has been studied by differential scanning calorimetry (d.s.c.) and Fourier transform infrared (FTi.r.) spectroscopy. PLLA/PVPh blends are partially miscible as characterized by shifts in the glass transition temperature (Tgs) of the two component polymers. The Tg of the PLLA-rich phase increases with increasing PVPh content, while that of the PVPh-rich phase decreases with increasing PLLA content. The apparent melting temperature of PLLA is significantly depressed with increasing PVPh content. Weak hydrogen-bonding interaction exists between the carbonyl groups of PLLA and the hydroxyl groups of PVPh as evidenced in the FTi.r. spectra. In the amorphous state, the hydrogen-bonded hydroxyl band of PVPh shifts to a higher frequency upon blending with PLLA, while the carbonyl stretching band of PLLA shifts to a lower frequency with the addition of PVPh. In addition, a new carbonyl stretching band attributed to the hydrogen-bonded carbonyl groups of PLLA is found at 1700 cm-1. The crystallinity of PLLA in the blends displays a marked decrease with increasing PVPh content. When the PVPh content is above 40 wt%, crystallization of PLLA does not occur under isothermal conditions. Morover, the cold crystallization process of the PLLA component is also affected significantly by the addition of PVPh. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/S0032-3861(97)10167-7 | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | CHEMISTRY | |
dc.description.doi | 10.1016/S0032-3861(97)10167-7 | |
dc.description.sourcetitle | Polymer | |
dc.description.volume | 39 | |
dc.description.issue | 20 | |
dc.description.page | 4841-4847 | |
dc.description.coden | POLMA | |
dc.identifier.isiut | 000074952300018 | |
Appears in Collections: | Staff Publications |
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