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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Ali, M. A. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Caparrós, C.
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Publications (5/5 displayed)
- 2013Bioactive albumin functionalized polylactic acid membranes for improved biocompatibilitycitations
- 2013Large linear anhysteretic magnetoelectric voltage coefficients in CoFe 2O4/polyvinylidene fluoride 0-3 nanocompositescitations
- 2012Hydrothermal assisted synthesis of iron oxide-based magnetic silica spheres and their performance in magnetophoretic water purificationcitations
- 2012Reversible aggregation and chemical resistance of magnetic nanoclusters for their recycling and repetitive use in industrial Bioprocesses
- 2012Thermal properties of electrospun poly(lactic acid) membranescitations
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article
Thermal properties of electrospun poly(lactic acid) membranes
Abstract
[EN] Poly(lactic acid) (PLA) electrospun membranes were obtained by electrospinning and characterized by scanning electron microscopy (SEM) and thermal analysis. The polymer membranes showed a random fiber distribution with a mean diameter of 1µm (±300 nm). Differential scanning calorimetry (DSC) experiments showed that the membranes had a glass transition, cold crystallization, and melting temperatures of 54, 90, and 151◦C, respectively. The kinetic study of thermal degradation of PLA under a nitrogen atmosphere was performed by means of thermogravimetry (TGA). It was found that the thermal decomposition kinetics of PLA could be interpreted in terms of a multi-step degradation mechanism. Several theoretical models were applied to the TGA data. The activation energies obtained by the Broido and Ozawa–Flynn–Wall (OFW) models were in good agreement with the value of the activation energy calculated by the Kissinger method ; The authors thank the Portuguese Foundation for Science and Technology (FCT) for finantial support under grants NANO/NMed-SD/0156/2007 and PTDC/CTM/73030/2006. V. Sencadas thanks the FCT for the SFRH/BPD/63148/2009 grant. C. Ribeiro thanks the INL for a PhD grant. J. L. Gomez-Ribelles acknowledges the support of the Spanish Ministry of Education through project No. MAT2007-66759-C03-01 (including the FEDER financial support, and funding in the Centro de Investigacion Principe Felipe in the field of Regenerative Medicine through the collaboration agreement between the Conselleria de Sanidad (Generalitat Valenciana), and the Instituto de Salud Carlos III (Ministry of Science and Innovation). ; Sencadas, VJGDS.; Costa, C.; Botelho, G.; Caparrós, C.; Ribeiro, C.; Gómez Ribelles, JL.; Lanceros-Mendez, S. (2012). Thermal Properties of Electrospun Poly(Lactic Acid) Membranes. Journal of Macromolecular Science Part B Physics. 51(1-3):411-424. https://doi.org/10.1080/00222348.2011.597325 ; 411 ; 424 ; 51 ; 1-3 ; Nijenhuis, A. J., Grijpma, D. W., & Pennings, A. J. (1992). Lewis acid catalyzed ...