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Carmen S. R. Freire
Researcher at University of Aveiro
Publications - 263
Citations - 13279
Carmen S. R. Freire is an academic researcher from University of Aveiro. The author has contributed to research in topics: Bacterial cellulose & Membrane. The author has an hindex of 58, co-authored 239 publications receiving 10307 citations. Previous affiliations of Carmen S. R. Freire include Åbo Akademi University & University of Madeira.
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Journal ArticleDOI
Biobased polyesters and other polymers from 2,5-furandicarboxylic acid: a tribute to furan excellency
Andreia F. Sousa,Andreia F. Sousa,Carla Vilela,Ana C. Fonseca,Marina Matos,Carmen S. R. Freire,Gert-Jan M. Gruter,Jorge F. J. Coelho,Armando J. D. Silvestre +8 more
TL;DR: In this article, a review of the literature on 2,5-furandicarboxylic acid derived polymers is presented, covering recent aspects related with challenges in developing polyesters, polyamides and their precursors.
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The quest for sustainable polyesters – insights into the future
Carla Vilela,Andreia F. Sousa,Andreia F. Sousa,Ana C. Fonseca,Arménio C. Serra,Jorge F. J. Coelho,Carmen S. R. Freire,Armando J. D. Silvestre +7 more
TL;DR: In this article, a review of recent aspects related to the most promising renewable-based polyesters is presented, focusing on bio-based monomers that, given their comparable properties, may replace polymers derived from fossil fuel feedstock.
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A concise guide to active agents for active food packaging
Carla Vilela,Mia Kurek,Zvi Hayouka,Bettina Röcker,Selçuk Yildirim,Maria Dulce Antunes,Julie Nilsen-Nygaard,Marit Kvalvåg Pettersen,Carmen S. R. Freire +8 more
TL;DR: Active packaging is a thriving field given its duality as barrier to external detrimental factors and active role in food preservation and quality as mentioned in this paper, however, research is still in its early stages with a long way to go in the design of innovative and economical active packaging materials containing appropriate active agents.
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Controlled heterogeneous modification of cellulose fibers with fatty acids: Effect of reaction conditions on the extent of esterification and fiber properties
Carmen S. R. Freire,Armando J. D. Silvestre,C. Pascoal Neto,Mohamed Naceur Belgacem,Alessandro Gandini +4 more
TL;DR: In this article, the effect of reaction conditions, such as reaction time, fatty acid chain length, and solvent types (swelling and non swelling), on the extent of esterification and fiber properties was evaluated by elemental analysis, IR-ATR, X-ray diffraction, 13C CPMAS NMR, contact angle measurement, thermogravimetry, and scanning electron microscopy.
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Transparent chitosan films reinforced with a high content of nanofibrillated cellulose
Susana C. M. Fernandes,Carmen S. R. Freire,Armando J. D. Silvestre,Carlos Pascoal Neto,Alessandro Gandini,Lars Berglund,Lennart Salmén +6 more
TL;DR: In this paper, the authors reported the preparation and characterization of nanocomposite films based on different chitosan matrices and nanofibrillated cellulose (NFC) for the purpose of improving strength properties.