Leire Sangroniz Agudo
Coordinator
Física de polímeros multifásicos avanzados
Física de polímeros y fabricación avanzada
Dr. Leire Sangroniz Agudo is a La Caixa Junior Leader Postdoctoral Fellow and Emakiker Fellow at POLYMAT, and a Ramón y Cajal awardee at POLYMAT and the University of the Basque Country (UPV/EHU). She earned her BSc in Chemistry (2014) and MSc in Chemistry and Polymers (2015) from UPV/EHU, where she also obtained her PhD in 2019 with Prof. A. Santamaria and Prof. A.J. Müller with the support of a competitive individual FPU fellowship at national level.
In 2020, she was awarded the highest-ranked postdoctoral fellowship from the Basque Government, enabling her to join Prof. Marc A. Hillmyer's group at the University of Minnesota and become part of the Center for Sustainable Polymers (CSP). In 2023, she continued her postdoctoral research at the University of Genoa (Italy) joining the group of Prof. Dario Cavallo with a Margarita Salas Fellowship. After that period, she returned to POLYMAT in 2024 to implement her research line.
Her scientific achievements have been recognized through several prestigious awards, including the Iberian Award for the Most Distinguished PhD Thesis in Rheology (2019–2021), jointly presented by the Spanish Rheology Group and the Portuguese Society of Rheology (2022), the Extraordinary PhD Thesis Award from UPV/EHU (2022) and CAF-Elhuyar Award (2020). More recently, she received the European Polymer Federation Future Faculty and Researchers Award (2025) and the JTACC+V4 Young Scientist Award (2025) for her outstanding contributions to polymer science.
Her research focuses on developing next-generation semicrystalline sustainable polymers by replacing conventional petroleum-based materials with renewable, biodegradable, and chemically recyclable alternatives. Her research aims to establish fundamental structure–property relationships governing polymer crystallization and processing to enable the rational design of high-performance sustainable polymeric materials.
Tacticity-independent crystallization of polymers
L. Sangroniz, A. Sangroniz, C. Shi, M. Scoti, M. Ximenis, C. De Rosa, E. Chen, H. Sardon and A.J. Müller
Polymorphic Self-Poisoning in the Isothermal Crystallization of Thermoplastic Polyurethanes
Z. Baouch, I. Guardincerri, K. Jariyavidyanont, L. Sangroniz, Y. Shi, E. Poselt, A.J. Müller, R. Androsch and D. Cavallo
Decoupling the Roles of Chain Length, Entanglements, and Intermolecular Interactions on the Melt Memory of Semicrystalline Polar Homopolymers
Aboudzadeh M.A., Sangroniz L., Coulembier O., Ferranti M., Costanzo S., Grizzuti N., Cavallo D. and A.J. Müller
How the lack of chain ends affects the melt memory of poly(ethylene oxide): cyclic versus linear chains
Sangroniz L., Barroso-Bujans F., Allgaier J. and A.J. Müller
Impact of Chain Length on PCL Dielectric ß-Relaxation: Decoupling the Roles of Chain Ends, Main Chains, Entanglements, and Crystallinity
L. Sangroniz, A. Alegria and A.J. Müller
Self-Nucleation Enables Polymorphic Selection in Thermoplastic Polyurethanes
Z. Baouch, L. Sangroniz, Y. Shi, E. Poselt, A.J. Müller and D. Cavallo
Effect of Side-Chain gem-dialkyl Substitution on the Crystallization of poly(d-valerolactone): Competition between Steric Effects and Chain Flexibility
L. Sangroniz, J. Ramos, J. Vega, X. Li, T. Xu, E. Chen, A.J. Müller and D. Cavallo
Pasteurization-Triggered Heat-Resistant Enhancement of Packaging Films Derived from a Star-Shape Toughened Polylactide Stereocomplex
S. Buchatip, W. Supmak, L. Sangroniz, M. Opaprakasit, A. Petchsuk, P. Opaprakasit and A.J. Müller
Lamellar thickness of the polypropylene matrix determines surface induced nucleation of polyethylene droplets in immiscible blends
L. Sangroniz, E. Carmeli, L. Vukusic, V. Hristov, M. Galatini, D. Tranchida and D. Cavallo
Effect of Biobased Glycerol Trilevulinate on the Crystallization Kinetics of Biodegradable Polyesters
F. Shariatikia, L. Sangroniz, J. Olmedo-Martínez, R. Pérez-Camargo, A. González, L. Lenzi, M. Degli Esposti, D. Morselli, P. Fabbri and A.J. Müller
Cooling rate-dependent polymorphism in thermoplastic polyurethanes: effect of hard segments content
Z. Baouch, K. Jariyavidyanont, L. Moni, L. Sangroniz, E. Pöselt, A.J. Müller, R. Androsch and D. Cavallo
The Decisive Role of Confinement in Enhancing or Suppressing Self-Nucleation in Polyethylene-Containing Block Copolymers
Y. Liao, L. Sangroniz, M. Safari, H. Schmalz and A.J. Müller
Melt memory effect on crystallization in olefin copolymers: Is random comonomer incorporation the only requirement?
L. Sangroniz, M. Fernandéz, G. Leone and D. Cavallo
Fungal Chitin Nanofibrils to Improve the Functional Properties of Poly(vinyl alcohol) Films for Sustainable Food Packaging
M. Alam, L. Sangroniz, M. Scoti, A. González, A. Etxeberría, A. Sangroniz and E. Lizundia
Origin of Melt Memory Effects in Poly(ethylene oxide): The Crucial Role of Entanglements
L. Sangroniz, A.J. Müller and D. Cavallo
Crystallization-Induced Self-Assembly of Poly(ethylene glycol) Side Chains in Dithiol-yne-Based Comb Polymers: Side Chain Spacing and Molecular Weight Effects
E. Matxinandiarena, M. Peñas, B. Curole, M. Król, L. Polo Fonseca, J. Ruokolainen, S. Grayson, L. Sangroniz and A.J. Müller
Polymer Physics behind the Gel-Spinning of UHMWPE Fibers
Z. Wang, L. Sangroniz, J. Xu, C. Zhu and A.J. Müller
Strong Hydrogen Bonds Sustain Even-Odd Effects in Poly(ester amide)s with Long Alkyl Chain Length in the Backbone
L. Sangroniz, J. Olmedo-Martínez, W. Hu, Y. Jang, G. Liu, M. Hillmyer and A.J. Müller
Control over Aspect Ratio and Polymer Spatial Distribution of 2D Platelets via Living Crystallization-Driven Self-Assembly
T. Xia, L. Xiao, K. Sun, J. Rho, Y. Xie, S. Parkinson, L. Sangroniz, J. Zhang, J. Lin, A.J. Müller, L. Gao, A. Dove and R. O’Reilly
Disappearance of Melt Memory Effect with Comonomer Incorporation in Isodimorphic Random Copolyesters
L. Sangroniz, M. Safari, A. de Ilarduya, H. Sardon, D. Cavallo and A.J. Müller
Tuning the crystallization and thermal properties of polyesters by introducing functional groups that induce intermolecular interactions
L. Sangroniz, Y. Jang, M. Hillmyer and A.J. Müller
Polymers and rheology: A tale of give and take
L. Sangroniz, M. Fernández and A. Santamaria
Effect of Molecular Weight on the Crystallization and Melt Memory of Poly(?-caprolactone) (PCL)
A. Fernández-Tena, R. Pérez-Camargo, O. Coulembier, L. Sangroniz, N. Aranburu, G. Guerrica-Echevarria, G. Liu, D. Wang, D. Cavallo and A.J. Müller
The role of intermolecular interactions on melt memory and thermal fractionation of semicrystalline polymers
L. Sangroniz, Y. Jang, M. Hillmyer and A.J. Müller
Lactide-valerolactone copolymers for packaging applications
Sangroniz A., Sangroniz L., Hamzehlou S., Aranburu N., Sardon H., J.R. Sarasua, Iriarte M., J.R. Leiza and Etxeberria A.
Fractionated crystallization in semicrystalline polymers
L. Sangroniz, B. Wang, Y. Su, G. Liu, D. Cavallo, D. Wang and A.J. Müller
Matching rheology, conductivity and joule effect in PU/CNT nanocomposites
L. Sangroniz, M. Landa, M. Fernández and A. Santamaria
Rheology of complex biobased quaternary blends: Poly(lactic acid) [poly(ethylene oxide)]/poly(ether-b-amide)/poly(amide 11)
L. Sangroniz, T. Gancheva, B. Favis, A.J. Müller and A. Santamaria
Rheology of polymer processing in Spain (1995–2020)
L. Sangroniz, M. Fernández, P. Partal and A. Santamaria
Chemical Structure Drives Memory Effects in the Crystallization of Homopolymers
L. Sangroniz, A. Sangroniz, L. Meabe, A. Basterretxea, H. Sardon, D. Cavallo and A.J. Müller
Effect of shear rate and pressure on the crystallization of PP nanocomposites and PP/PET polymer blend nanocomposites
L. Sangroniz, M. van Drongelen, R. Cardinaels, A. Santamaria, G. Peters and A.J. Müller
Self-Nucleation Effects on Polymer Crystallization
L. Sangroniz, D. Cavallo and A.J. Müller
Properties of scaffolds prepared by fused deposition modeling of poly(hydroxyalkanoates)
A. Kovalcik, L. Sangroniz, M. Kalina, K. Skopalova, P. Humpolícek, M. Omastova, N. Mundigler and A.J. Müller
Lactide-caprolactone copolymers with tuneable barrier properties for packaging applications
A. Sangroniz, L. Sangroniz, S. Hamzehlou, J. Río, A. Santamaria, J.R. Sarasua, M. Iriarte, J.R. Leiza and A. Etxeberria
Melt memory effects in poly(Butylene succinate) studied by differential fast scanning calorimetry
L. Sangroniz, C. Ocando, D. Cavallo and A.J. Müller
Upgrading Recycled Polyolefins as Stimuli Responsive Materials
L. Sangroniz, A. Sangroniz, M. Fernandez, A. Etxeberria, A.J. Müller and A. Santamaria
Reactive melt processing of poly (L-lactide) in the presence of thermoplastic polyurethane and carboxylated carbon nanotubes
O. Yousetzade, J. Ugartemendia, L. Sangroniz, R. Hernandez, J. Puiggali and H. Garmabi
Improving the barrier character of poly(caprolactone): Transport properties and free volume of immiscible blends
S. Eceolaza, A. Sangroniz, J. del Rio, M. Iriarte and A. Etxeberria
Packaging materials with desired mechanical and barrier properties and full chemical recyclability
A. Sangroniz, J. Zhu, X. Tang, A. Etxeberria, E. Chen and H. Sardon
Elaboration and Characterization of Conductive Polymer Nanocomposites with Potential Use as Electrically Driven Membranes
L. Sangroniz, A. Sangroniz, M. Fernandez, A. Etxeberria, A.J. Müller and A. Santamaria
Improving the barrier properties of a biodegradable polyester for packaging applications
A. Sangroniz, L. Sangroniz, A. Gonzalez, A. Santamaria, J. del Rio, M. Iriarte and A. Etxeberria
Polyethylene terephthalate/low density polyethylene/titanium dioxide blend nanocomposites: Morphology, crystallinity, rheology, and transport properties
L. Sangroniz, J. Ruiz, A. Sangroniz, M. Fernandez, A. Etxeberria, A.J. Müller and A. Santamaria
Plasticization of poly(lactide) with poly(ethylene glycol): Low weight plasticizer vs triblock copolymers. Effect on free volume and barrier properties
A. Chaos, A. Sangroniz, J. Fernandez, J. del Rio, M. Iriarte, J.R. Sarasua and A. Etxeberria
Effect of hydrogen bonding on the physicochemical and rheological features of chemically modified phenoxy
L. Sangroniz, A. Sangroniz, A. Alegria, M. Fernandez, L. Irusta, A.J. Müller, A. Etxeberria and A. Santamaria
Blends based on biodegradable poly(butylene adipate-co-terephthalate) for packaging: Degradation and transport properties
A. Sangroniz, L. Sangroniz, A. Santamaria, M. Iriarte and A. Etxeberria
Studying the effect of hydrogen bonds on an amorphous thermoplastic
A. Sangroniz, L. Sangroniz, A.J. Müller, M. Iriarte, A. Santamaria and A. Etxeberria
Blends of biodegradable poly(butylene adipate-co-terephthalate) with poly (hydroxi amino ether) for packaging applications: Miscibility, rheology and transport properties
A. Sangroniz, L. Sangroniz, N. Aranburu, M. Fernandez, A. Santamaria, M. Iriarte and A. Etxeberria
Differences between Isotropic and Self-Nucleated PCL Melts Detected by Dielectric Experiments
L. Sangroniz, R. Alamo, D. Cavallo, A. Santamaria, A.J. Müller and A. Alegria
