Hayward, Ryan C. - University of Massachusetts Amherst - Department of Polymer Science and Engineering

个人简介

Awards National Science Foundation Special Creativity Extension (2019) Fellow of the American Physical Society (2018) Blavatnik National Awards Finalist in Physical Sciences & Engineering (2018) Chaire Michelin, ESPCI (2016) Dudley A. Saville Lecturer, Princeton University (2014) American Physical Society John H. Dillon Medal (2014) Journal of Polymer Science Innovation Award (2013) DOE Early Career Research Award (2011) ACS Division of Colloid and Surface Chemistry Unilever Award (2011) Presidential Early Career Award for Scientists and Engineers (2010) 3M Nontenured Faculty Award (2009 - 2011) ACS Petroleum Research Fund Doctoral New Investigator Award (2009) National Science Foundation CAREER Award (2008)

研究领域

Mechanics of soft active materials We work on a variety of topics inspired by the concept of materials that can change their properties on demand, clean or repair themselves, and actively interact with their surroundings. We are particularly interested in the mechanics of constrained and patterned soft polymeric materials that undergo shape instabilities in response to specific stimuli. For example, we have developed strategies by which temperature responsive gel sheets are micro-patterned to reversibly swell from flat sheets into precisely defined buckled shapes, such as the 5-node Enneper's surface and Randlett's bird shown at right. Other projects concern creasing, wrinkling, and folding instabilities of soft polymer multilayers, mechanics of supramolecular gels, and characterization of nanoscale structural heterogeneities in polymer networks. Assembly of polymer- and particle-based nanostructures Our research also focuses on the development of new pathways to assemble materials into tailored nanostructures. In one example, we take advantage of solution-state crystallization of conjugated polymers into nanowires to control the architecture and photo-physical properties of these materials, such as the helical bundles of polythiophene diblock copolymers shown at right. We also study organization of nanoparticles in multiphase polymer matrices, and formation of well-defined hybrid polymer/nanoparticle assemblies through emulsion processing routes.

近期论文

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A.S. Kuenstler, K.D. Clark, J. Read de Alaniz, R.C. Hayward*, “Reversible Actuation via Photoisomerization-Induced Melting of a Semicrystalline Poly(Azobenzene)”, ACS Macro Letters (2020). DOI: 10.1021/acsmacrolett.0c00328 H. J. Kim, L. Paquin, C.W. Barney, S. So, B. Chen, Z. Suo, A.J. Crosby, R.C. Hayward, “Low-Voltage Reversible Electro-Adhesion of Ionoelastomer Junctions”, Advanced Materials (2020). DOI: 10.1002/adma.202000600 K. Korner, A.S. Kuenstler, R.C. Hayward, B. Audoly, K. Bhattacharya, "A nonlinear beam model for photomotile structures", Proceedings of the National Academy of Sciences (2020). DOI: 10.1073/pnas.1915374117 A.S. Kuenstler, Y. Chen, P. Bui, H. Kim, A. DeSimone, L. Jin, R.C. Hayward, “Blueprinting Photothermal Shape-Morphing of Liquid Crystal Elastomers”, Advanced Materials (2020). DOI: 10.1002/adma.202000609 H. Kim, N. Hight-Huf, J.-H. Kang, P. Bisnoff, S. Sundararajan, T. Thompson, M. Barnes, R.C. Hayward, T. Emrick “Polymer Zwitterions for Stabilization of CsPbBr3 Perovskite Nanoparticle and Nanocomposite Films”, Angewandte Chemie International Edition (2020). DOI: 10.1002/anie.201916492 H. J. Kim, B. Chen, Z. Suo, R.C. Hayward, “Ionoelastomer junctions between polymer networks of fixed anions and cations”, Science, 367, 773-776 (2020). DOI: 10.1126/science.aay8467 F. Tong, W. Xu, T. Guo, B. F. Lui, R.C. Hayward, P. Palffy-Muhoray, R.O. Al-Kaysi, C.J. Bardeen, “Photomechanical molecular crystals and nanowire assemblies based on the [2+2] photodimerization of a phenylbutadiene derivative”, J. Mater. Chem. C (2020). DOI: 10.1039/c9tc06946a T. Ouchi, R.C. Hayward, “Harnessing multiple surface deformation modes for switchable conductivity surfaces”, ACS Applied Materials & Interfaces (2020). DOI: 10.1021/acsami.9b22662 S.J. Jeon, R.C. Hayward, “Simultaneous control of Gaussian curvature and buckling direction by swelling of asymmetric trilayer hydrogel hybrids”, Soft Matter (2020). DOI: 10.1039/c9sm01922g D.E. Acevedo-Cartagena, J. Zhu, M. Kocun, S.S. Nonnenmann, R.C. Hayward, “Tuning metastability of poly(3-hexyl thiophene) solutions to enable in situ atomic force microscopy imaging of surface nucleation”, Macromolecules (2019). DOI: 10.1021/acs.macromol.9b01547 Y. Zhou, C.M. Duque, C.D. Santangelo, R.C. Hayward, “Biasing buckling direction in shape-programmable hydrogel sheets with through-thickness gradients” Advanced Functional Materials (2019). DOI: 10.1002/adfm.201905273 J.-H. Kang, H. Kim, C.D. Santangelo, R.C. Hayward, "Enabling Robust Self‐Folding Origami by Pre‐Biasing Vertex Buckling Direction", Advanced Materials (2019). DOI: 10.1002/adma.201903006 H. Nie, J.L. Self, A.S. Kuenstler, R.C. Hayward, J. Read de Alaniz, “Multi-Addressable Photochromic Architectures: From Molecules to Materials", Advanced Optical Materials (2019).DOI: 10.1002/adom.201900224 H. Kim, J.-H. Kang, Y. Zhou, A.S. Kuenstler, Y. Kim, C. Chen, T. Emrick, R.C. Hayward, “Light‐Driven Shape Morphing, Assembly, and Motion of Nanocomposite Gel Surfers”, Advanced Materials (2019). DOI: 10.1002/adma.201900932 A.S. Kuenstler, H. Kim, R.C. Hayward, "Liquid Crystal Elastomer Waveguide Actuators", Advanced Materials (2019). DOI: DOI: 10.1002/adma.201901216 Q. Liu, T. Ouchi, R.C. Hayward, Z. Suo, “Elastocapillary crease”, Physical Review Letters, 122, 098003 (2019). DOI: 10.1103/PhysRevLett.122.098003 D. Zeng, R.C. Hayward, “Effects of Randomly End-Linked Copolymer Network Parameters on the Formation of Disordered Cocontinuous Phases”, Macromolecules, 52, 2642–2650 (2019). DOI: 10.1021/acs.macromol.9b00050 A.S. Kuenstler, R.C. Hayward, “Light-Induced Shape Morphing of Thin Films”, Current Opinion in Colloid and Interface Science, 40, 70-86 (2019). DOI: 10.1016/j.cocis.2019.01.009 H. Kim, S. So, A. Ribbe, Y., W. Hu, V.V. Duzhko, R.C. Hayward, T. Emrick, "Functional Polymers for Stabilizing CsPbBr3 Perovskite Nanoparticles", Chemical Communications, 55, 1833-1836 (2019). DOI: 10.1039/C8CC09343A A. Sathyan, R.C. Hayward, T. Emrick "Ring-Opening Polymerization of Allyl-Functionalized Lactams", Macromolecules, 52, 167-175 (2019). DOI: 10.1021/acs.macromol.8b02148