Estudo sobre a formação de microporos em filmes de PLA e em blendas PLA/PBAT pelo método breath figure / Study on formation of microporous in PLA films and PLA/PBAT blends by breath figure method

Fernanda Nardo Cobo, Lolita Guttuzzo, Gizilene Maria de Carvalho

Abstract


Filmes microporosos de PLA puro e de blendas PLA/PBAT foram preparados pelo método de automontagem denominado breath figure. Diferentes fatores influenciam a formação dos poros, entre eles foram investigados o efeito do solvente, da concentração, da natureza dos polímeros PLA e PBAT e da adição de PBAT em blendas PLA/PBAT com composição 95/5 e 70/30. As imagens de microscopia óptica mostraram que o diclorometano é o melhor solvente para obter poros com tamanhos mais regulares nos filmes de PLA puro e nas blendas com composição 95/5. A estrutura linear dos polímeros PLA e PBAT não contribuíram para a estabilizar e evitar a coalescia das gotículas de água, resultando em poros com distribuição de tamanho aleatória. Blendas contendo 5 e 30% de PBAT apresentaram poros com tamanhos mais regulares para soluções preparadas com concentrações de 1 e 2% (m/v).

 


Keywords


Superfícies porosas, breath figures, blendas.

References


BALAN, G. C., YAMASHITA, F., SAKANAKA, L. S., & SHIRAI, M. A.. Elaboração e caracterização de filmes extrusados a partir de blendas de poli (adipato-co-tereftalato de butileno) e farinha de trigo com diferentes Falling number. Brazilian Journal of Development, 6(6), 41426-41438, 2020.

COLOMBO, R. N. P.; PETRI, D. F.S.; CÓRDOBA DE TORRESI, S.I.; GONÇALES. V. R. Porous polymeric templates on ITO prepared by breath figure method for gold electrodeposition. Eletrochimica Acta, v. 158, p. 187-195, 2015.

DOU, Y.; JIN, M.; ZHOU, G.; SHUI, L. Breath figure method for construction of honeycomb films. Membranes, v. 5, p. 399-424, 2015.

ESCALÉ, P.; RUBATAT, L.; BILLON, L.; SAVE, M. Recent advances in honeycomb-structured porous polymer films prepared via breath figures. European Polymer Journal, v. 48, p. 1001-1025, 2012.

Farah, S.; Anderson, G.; Langer, R. Physical and mechanical properties of PLA, and their functions in widespread applications — A comprehensive review, Advanced Drug Delivery Reviews 107, p. 367–392, 2016.

Ferrari, E.; Fabbri, P.; Pilati, F. Solvent and Substrate Contributions to the Formation of Breath Figure Patterns in Polystyrene. Langmuir 27, p. 1874–1881, 2011.

HUANG, C.; KAMRA, T.; CHAUDHARY, S.; SHEN, X. Breath Figure Patterns Made Easy. ACS Appl. Mater. Interfaces, v. 6, p. 5971−5976, 2014.

Jian J.; Xiangbin, Z.; Xianbo, H. An overview on synthesis, properties and applications of poly(butylene-adipate-co-terephthalate) e PBAT. Advanced Industrial and Engineering Polymer Research 3, p. 19-26, 2020.

LIDE D. R. Handbook of chemistry and physics. 80th ed. Boca Raton: CRC Press; 1999.

LIU, M.; ZHANG, X.; WANG, D.; CHENG, J.; PANG, X.; QU, W.; LI, C.; LI, S. Facile Fabrication of Superhydrophobic Surface from Fluorinated POSS Acrylate Copolymer via One-Step Breath Figure Method and Its Anti-Corrosion Property. Polymers, v. 11, p. 1953 (1 de 19), 2019.

NOFAR, M.; TABATABAEI, A.; SOJOUDIASLI, H. PARK, C. B.; CARREAU, P. J.; HEUZEY, M.C.; KAMAL, M.R. Mechanical and bead foaming behavior of PLA-PBAT and PLA-PBSA blends with diferente morphologies. European Polymer Journal, v. 90, p. 231–244, 2017.

PRETULA, J.; SLOMKOWSKI, S.; PENCZEK, S. Polylactides- Methods of synthesis and characterization. Advanced Drug Delivery Reviews, v. 107, p. 3 -16, 2016.

PREUKSARATTANAWUT, C.; NISARATANAPORN, E.; SIRALERTMUKUL, K. Highly ordered porous PLA films prepared by breath figure method. Journal of Metals, Materials and Minerals, 29, p. 106-112, 2019.

SRINIVASARAO, M.; COLLINGS, D.; PHILIPS, A.; PATEL, S. Three-Dimensionally Ordered Array of Air Bubbles in a Polymer Film. Science, v. 292, p. 79-83, 2001.

STENZEL, M. H.; BARNER-KOWOLLIK, C.; DAVIS, T. P. Formation of Honeycomb-Structured, Porous Films via Breath Figures with Different Polymer Architectures. J. Polym. Sci. Parte A: Polymer. Chem, v. 44, p. 2363- 2375, 2006.

SU, S.; DUHME, M.; KOPITZKY, R. Uncompatibilized PBAT/PLA Blends: Manufacturability, Miscibility and Properties. Materials, 13, p. 4897, 2020.

WANG, L-F.; RHIM, J-W.; HONG, S-I. Preparation of poly(lactide)/poly(butylene adipate-co-terephthalate) blend films using a solvent casting method and their food packaging application. Food Science and Technology, v. 68, p. 454-461, 2016.

WIDAWSKI, G.; RAWISO, M.; FRANCOIS, B. Self-organized honeycomb morphology of star-polymer polystyrene films. Nature, v. 369, p. 387–389, 1994.

ZHANG, A.; BAI, H.; LI, L. Breath figure: a nature-inspired preparation method for ordered porous films. Chemical Reviews, v. 115, p. 9801-9868, 2015.

ZHANG, C.; WANG, X.; MIN, K.; LEE, D.; WEI, C.; SCHULHAUSER, H.; GAO, H. Developing porous honeycomb films using miktoarm star copolymers and exploring their application in particle separation. Macromol. Rapid Commun., v. 35, p. 221−227, 2014.

ZHAO, X.; HU, H.; WANG, X.; YU, X.; ZHOU, W.; PENG, S. Super tough poly(lactic acid) blends: a comprehensive review. RSC Adv., v. 10, p. 13316-13368, 2020.

YABU, H. Fabrication of honeycmb films by the breath figure tecnique and their applications. Science and Tecnology of Advanced Materials, v. 19, n. 1, p. 802-822, 2018.




DOI: https://doi.org/10.34117/bjdv7n2-360

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