Kumar, Sanat K. - Columbia University - Department of Chemical Engineering

研究领域

Tuning nanoparticle dispersion in a polymer matrix Controlling transport properties of polymer composites Compatibilization of immiscible polymer blends using polymer-grafted nanoparticles Modeling the entanglement distribution in polymer-grafted nanoparticle systems Dynamic properties of polymer grafted nanoparticles Coarse-grained molecular dynamics simulation of polymer electrolytes Dielectric properties of polymer nanocomposites Machine learning as applied to nanoparticles and polymers

近期论文

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"Unusual High-Frequency Mechanical Properties of Polymer-Grafted Nanoparticle Melts." Jhalaria, M.; Cang, Y.; Huang, Y.; Benicewicz, B.; Kumar, S.K.; Fytas, G. Physical Review Letters, 128 187801 (2022) "Understanding Gas Transport in Polymer-Grafted Nanoparticle Assemblies." Bilchak, C.R.; Jhalaria, M.; Adhikari, S.; Midya, J.; Huang, Y.; Abbas, Z.; Nikoubashman, A.; Benicewicz, B.C.; Rubinstein, M.; Kumar, S.K. Macromolecules, 55 3011-3019 (2022) "Crystallization kinetics and nanoparticle ordering in semicrystalline polymer nanocomposites." Altorbaq, A.S.; Krauskopf, A.A.; Wen, X.; Pérez-Camargo, R.A.; Su, Y.; Wang, D.; Müller, A.J.; Kumar, S.K. Progress in Polymer Science, 128 101527 (2022) "Modeling thermal welding of semicrystalline polymers." Adhikari, S.; Durning, C.J.; Fish, J.; Simon, J-W.; Kumar, S.K. Macromolecules, 55 1719-1725 (2022) "In Situ Atomic Force Microscopy Tracking of Nanoparticle Migration in Semicrystalline Polymers." Bornani, K.; Mendez, N.F.; Altorbaq, A.S.; Müller, A.J.; Lin, Y.; Zhonghang Qu, E.; Zhang, K.; Kumar, S.K.; Schadler, L.S. ACS Macro Letters, 11 818-824 (2022) "Fracture Toughness of Polymer Interfaces Compatibilized with Nanoparticle Brushes." Alkhodairi, H.; Kumar, S.K. Macromolecules, 55 4937-4946 (2022) "Long-Term Aging in Miscible Polymer Nanocomposites." Jhalaria, M.; Jimenez, A.M.; Mathur, R.; Tekell, M.C.; Huang, Y.; Narayanan, S.; Benicewicz, B.C.; Kumar, S.K. Macromolecules, 55 4502-4515 (2022) "Controlling toughness of polymer-grafted nanoparticle composites for impact mitigation." Chen, S.H.; Souna, A.J.; Stranick, S.J.; Jhalaria, M.; Kumar, S.K; Soles, C.L.; Chan, E.P. Soft Matter, 18 256-261 (2022) "d-organized nanomaterials through dna-prescribed and valence-controlled material." Gang, O.; Tian, Y.; Kahn, J.S.; Xiong, Y.; Minevich, B.; Kumar, S.K., U.S. Patent App. US 17070643 (2021) "Quantifying Nanoparticle Ordering Induced by Polymer Crystallization." Krauskopf, A.A.; Jimenez, A.M.; Altorbaq, A.S.; Müller, A.J.; Kumar, S.K. ACS Nano, 15 14430–14443 (2021) "Structure and Dynamics of Stockmayer Polymer Electrolyte." Tekell, M.C.; Kumar, S.K. Macromolecules, 54 7160–7173 (2021) "Gas Transport in Interacting Planar Brushes." Adhikari, S.; Nikoubashman, A.; Leibler, L.; Rubinstein, M.; Midya, J.; Kumar, S.K. ACS Polymers Au, 1 39-46 (2021) "Why is Recycling of Postconsumer Plastics so Challenging?" Vogt, B.D.; Stokes, K.K.; Kumar, S.K. Applied Polymer Materials, 3 4325–4346 (2021) "Boundary layer description of directional polymer crystallisation." Adhikari, S.; Krauskopf, A.A.; Kumar, S.K.; Thampi, S.P.; Durning, C.J. Soft Matter, 17 7755-7768 (2021) "Activated Transport in Polymer Grafted Nanoparticle Melts." Jhalaria, M.; Huang, Y.; Ruzicka, E. et al. Macromolecules, 54 6968–6974 (2021) "Detecting bound polymer layers in attractive polymer–nanoparticle hybrids." Emamy, H.; Starr, F.W.; Kumar, S.K. Nanoscale, 13 12910-12915 (2021) "Using Nanofiller Assemblies to Control the Crystallization Kinetics of High-Density Polyethylene." Bornani, K.; Rahman, M.A.; Benicewicz, B.; Kumar, S.; Schadler, L. Macromolecules, 54 5673–5682 (2021) "Quantifying Nanoparticle Assembly States in a Polymer Matrix Through Deep Learning." Qu, E.Z.; Jimenez, A.M.; Kumar, S.K.; Zhang, K. Macromolecules, 54 3034–3040 (2021) "Colloidal assembly by directional ice templating." Biswas, B.; Misra, M.; Bisht, A.S.; Kumar, S.K., Kumaraswamy, G. Soft Matter, 17 4098-4108 (2021) "Polymer spherulitic growth kinetics mediated by nanoparticle assemblies." Altorbaq, A.S.; Jimenez, A.M.; Pribyl, J.; Benicewicz, B.; Müller, A.J.; Kumar, S.K. Macromolecules, 54 1063-1072 (2021) "Direct Relationship between Dispersion and Crystallization Behavior in Poly(ethylene oxide)/Poly(ethylene glycol)-g-Silica Nanocomposites." Wen, X.; Su, Y.; Liu, G.; Li, S.; Müller, A.J.; Kumar, S.K.; Wang, D. Macromolecules, 54 1870-1880 (2021) "Modeling polymer crystallisation induced by a moving heat sink." Adhikari, S.; Purushothaman, A.; Krauskopf, A.A.; Durning, C.; Kumar, S.K.; Thampi, S.P.; Soft Matter, 17 2518-2529 (2021) "Compatibilizing Immiscible Polymer Blends with Sparsely Grafted Nanoparticles." Alkhodairi, H.; Russell, S.T.; Pribyl, J.; Benicewicz, B.C.; Kumar, S.K. Macromolecules, 53 10330-10338 (2020) "Tuning Selectivities in Gas Separation Membranes Based on Polymer-Grafted Nanoparticles." Bilchak, C.R.; Jhalaria, M.; Huang, Y.; Abbas, Z. ACS nano, 14 17174-17183 (2020) "Polymer Crystallization under Confinement by Well-Dispersed Nanoparticles." Jimenez, A.M.; Altorbaq, A.S.; Müller, A.J.; Kumar, S.K. Macromolecules, 53 10256-10266 (2020) "Structure of polymer-grafted nanoparticle melts." Midya, J.; Rubinstein, M.; Kumar, S.K.; Nikoubashman, A. ACS nano, 14 15505-15516 (2020) "Assembly of Polymer-Grafted Nanoparticles in Polymer Matrices." Koh, C.; Grest, G.S.; Kumar, S.K. ACS nano, 14 13491-13499 (2020) "Structural Properties of Bound Layer in Polymer–Nanoparticle Composites." Emamy, H.; Kumar, S.K.; Starr, F.W. Macromolecules, 53 7845-7850 (2020) "Engineering Organization of DNA Nano-Chambers through Dimensionally Controlled and Multi-Sequence Encoded Differentiated Bonds." Lin, Z.; Emamy, H.; Minevich, B.; Xiong, Y. et al. Journal of the American Chemical Society, 142 17531-17542 (2020) "Polymer-Grafted Nanoparticles." Hore, M.J.A.; Korley, L.T.J.; Kumar, S.K. Journal of Applied Physics, 128 030401 (2020) "Mechanisms of Directional Polymer Crystallization." Krauskopf, A.A.; Jimenez, A.M.; Lewis, E.A.; Vogt, B.D.; Müller, A.J.; Kumar, S.K. ACS Macro Letters, 9 1007-1012 (2020) "Combinatorial-Entropy-Driven Aggregation in DNA-Grafted Nanoparticles." Sciortino, F.; Zhang, Y.; Gang, O.; Kumar, S.K. ACS Nano, 14 5628-5635 (2020) "Designing exceptional gas-separation polymer membranes using machine learning." Barnett, J.W.; Bilchak, C.R.; Wang, Y.; Benicewicz, B.C.; Murdock, L.A.; Bereau., T.; Kumar, S.K. Science Advances, 6 (2020) "Application of Concentrated Solution Theory to the Measurement of Salt Transference Numbers in Ion-Selective Membranes." Vardner, J.T.; Russell, S.T.; Brady, N.W.; Inaba, Y.; Kumar, S.K.; West, A.C. Journal of The Electrochemical Society, 167 (2020) "Synthesis of polyisoprene, polybutadiene and Styrene Butadiene Rubber grafted silica nanoparticles by nitroxide-mediated polymerization." M Bonnevide, M., Phan, T.N.T., Malicki, N., Kumar, S.K., Couty, M., Gigmes, D., Jestin, J. Polymer, 190, 122190 (2020) "Ordered three-dimensional nanomaterials using DNA-prescribed and valence-controlled material voxels." Tian, Y.; Lhermitte, J.; Bai, L.; Vo, T. et al. Nature Materials, 1-8 (2020) "Impact of Electrostatic Interactions on the Self-Assembly of Charge-Neutral Block Copolyelectrolytes." Russell, S.; Raghunathan, R.; Jimenez; A.; Zhang, K. et al., Macromolecules, 53, 548-557 (2020) "Hydration Effects on the Permselectivity-Conductivity Trade-Off in Polymer Electrolytes." Russell, S.; Pereira, R.; Vardner, J.; Jones, G. et al., Macromolecules, 53, 1014-1023 (2020) "Effects of Hairy Nanoparticles on Polymer Crystallization Kinetics." Jimenez, A.; Krauskopf, A.; Pérez-Camargo, R.; Zhao, D. et al., Macromolecules, 52, 9186-9198 (2019) "Morphologies of Polyisoprene-Grafted Silica Nanoparticles in Model Elastomers." Bonnevide, M.; Jimenez, A.; Dhara, D. et al., Macromolecules, 52, 7638-7645 (2019) "Accelerated Local Dynamics in Matrix-Free Polymer Grafted Nanoparticles." Jhalaria, M.; Buenning, E.; Huang, Y. et al., Physical Review Letters, 123, 158003 (2019) "Nanoparticle Organization by Growing Polyethylene Crystal Fronts." Ning, X.; Jimenez, A.; Pribyl, J. et al., ACS Macro Letters, 8, 1341-1346 (2019) "Critical Role of Processing on the Mechanical Properties of Cross-Linked Highly Loaded Nanocomposites." Karthika, S.; Chowdhury, A.; Kumar, S.; Kumaraswamy, G., Macromolecules, 52, 5955-5962 (2019) "Core-Size Dispersity Dominates the Self-Assembly of Polymer-Grafted Nanoparticles in Solution." Bachhar, N.; Kumaraswamy, G.; Kumar, S., Macromolecules, 52, 4888-4894 (2019) "Reinforcement of polychloroprene by grafted silica nanoparticles." Abbas, Z.; Tawfilas, M.; Khani, M. et al., Polymer, 171, 96-105 (2019) "High-Frequency Mechanical Behavior of Pure Polymer-Grafted Nanoparticle Constructs." Bilchak, C.; Huang, Y.; Benicewicz, B.; Durning, C.; Kumar, S., ACS Macro Letters, 8, 294-298 (2019) "Polyethylene Grafted Silica Nanoparticles Prepared via Surface-Initiated ROMP." Pribyl, J.; Benicewicz, B.; Bell, M. et al., ACS Macro Letters, 8, 228-232 (2019) "Exchange Lifetimes of the Bound Polymer Layer on Silica Nanoparticles." Jimenez, A. ; Zhao, D. ; Misquitta, K. ; Jestin, J. et. al. , ACS Macro Letters, 8, 166-171 (2019) "Modeling gas transport in polymer-grafted nanoparticle membranes." Barnett, J.; Kumar, S., Soft Matter, 15, 424-432 (2019) "Unusual packing of soft-shelled nanocubes." Lu, F.; Vo, T.; Zhang, Y; Frenkel, A. et al.; Science Advances, 5, 2375-2548 (2019) "Diminishing Interfacial Effects with Decreasing Nanoparticle Size in Polymer-Nanoparticle Composites." Emamy, H.; Kumar, S.; Starr, F., Physical Review Letters, 121, 207801 (2018) "Grafted polymer nanocomposite materials, systems, and methods." Kumar, S.; Durning, C.; Buenning, E.; Bilchak, C.; Benicewicz, B., U.S. Patent App. US 10112143 B2 (2018) "Accurate estimation of the polymer coverage of hairy nanoparticles." Asai, M. ; Zhao, D. ; Kumar, S. , Soft Matter, 14, 7906-7915 (2018) "Surface Fluctuations Dominate the Slow Glassy Dynamics of Polymer-Grafted Colloid Assemblies." Asai, M. ; Cacciuto, A. ; Kumar, S. , ACS Central Science, 4, 1179-1184 (2018) "Location of Imbibed Solvent in Polymer-Grafted Nanoparticle Membranes." Buenning, E. ; Jestin, J. ; Huang, Y. ; Benicewicz, B. et. al. , ACS Macro Letters, 7, 1051-1055 (2018) "Defining the optimal criterion for separating gases using polymeric membranes." Zhang, K.; Kumar, S., Soft Matter, 14, 9847-9850 (2018) "Do Very Small POSS Nanoparticles Perturb s-PMMA Chain Conformations?" Jouault, N. ; Kumar, S. ; Smalley, R. ; Chi, C. et. al. , Macromolecules, 51, 5278-5293 (2018) "Size-dependent penetrant diffusion in polymer glasses" Meng, D. ; Zhang, K. ; Kumar, S. , Soft Matter, 14, 4226-4230 (2018) "Coarse-grained molecular dynamics simulation of activated penetrant transport in glassy polymers" Zhang, K. ; Meng, D. ; Muller-Plathe, F. ; Kumar, S. , Soft Matter, 14, 440-447 (2018) "Unexpected thermal annealing effects on the viscosity of polymer nanocomposites." Chen, F. ; Takatsuji, K. ; Zhao, D. ; Yu, X. et. al. , Soft Matter, 13, 5341-5354 (2017) "Linear rheology of polymer nanocomposites with polymer-grafted nanoparticles." Giovino, M.; Pribyl, J.; Benicewicz, B.; Kumar, S.; Schadler, L., Polymer, 131, 104-110 (2017) "Perspective: Outstanding theoretical questions in polymer-nanoparticle hybrids." Kumar, S. ; Ganesan, V. ; Riggleman, R. , Journal of Chemical Physics, 147, 020901 (2017) "Nanoparticle assembly: a perspective and some unanswered questions." Kumar, S. ; Kumaraswamy, G. ; Prasad, B. ; Bandyopadhyaya, R. et. al. , Current Science, 112, 4950-4959 (2017) "Directionally interacting spheres and rods form ordered phases." Liu, W. ; Mahynski, N. ; Gang, O. ; Panagiotopoulos, A. et. al. , ACS Nano, 11, 4950-4959 (2017) "Impact of the Distributions of Core Size and Grafting Density on the Self-Assembly of Polymer Grafted Nanoparticles" Bachhar, N. ; Jiao, Y. ; Asai, M. ; Akcora, P. et. al. , Macromolecules, 19, 7730-7738 (2017) "Polymer-Grafted Nanoparticle Membranes with Controllable Free Volume" Bilchak, C. ; Buenning, E. ; Asai, M. ; Zhang, K. et. al. , Macromolecules, 50, 7111-7120 (2017) "Molecular Simulations of Solute Transport in Polymer Melts" Zhang, K. ; Kumar, S. , ACS Macro Letters, 6, 864-868 (2017) "Role of Grafting Mechanism on the Polymer Coverage and Self-Assembly of Hairy Nanoparticles" Asai, M. ; Zhao, D. ; Kumar, S. , ACS Nano, 11, 7028-7035 (2017) "Tunable Multiscale Nanoparticle Ordering by Polymer Crystallization" Zhao, D. ; Gimenez-Pinto, V. ; Jimenez, A. ; Zhao, L. et. al. , ACS Central Science, 3, 751-758 (2017) "Effect of filler loading, geometry, dispersion and temperature on thermal conductivity of polymer nanocomposites" Tessema, A. ; Zhao, D. ; Moll, J. ; Xu, S. et. al. , Polymer Testing, 57, 101-106 (2017) "Using Time-Temperature Superposition for Determining Dielectric Loss in Functionalized Polyethylenes" Misra, M. ; Kumar, S. , ACS Macro Letters, 6, 200-204 (2017) "50th Anniversary Perspective: Are Polymer Nanocomposites Practical for Applications?" Kumar, S. ; Benicewicz, B. ; Vaia, R. ; Winey, K. , Macromolecules, 50, 714-731 (2017) "Reentrant equilibrium disordering in nanoparticle-polymer mixtures" Meng, D. ; Kumar, S. ; Grest, G. ; Mahynski, N. et. al. , Computational Materials, 3, 3 (2017)