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Rajeev Kumar, Ph.D. - Publications

Affiliations: 
2008 Polymer Science & Engineering University of Massachusetts, Amherst, Amherst, MA 
Area:
Theory Physics, Condensed Matter Physics
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58 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2021 Mei H, Mahalik JP, Lee D, Laws TS, Terlier T, Stein GE, Kumar R, Verduzco R. Understanding interfacial segregation in polymer blend films with random and mixed side chain bottlebrush copolymer additives. Soft Matter. PMID 34523659 DOI: 10.1039/d1sm01146d  0.765
2020 Kumar R, Mahalik JP, Silmore KS, Wojnarowska Z, Erwin A, Ankner JF, Sokolov AP, Sumpter BG, Bocharova V. Capacitance of thin films containing polymerized ionic liquids. Science Advances. 6: eaba7952. PMID 32637617 DOI: 10.1126/Sciadv.Aba7952  0.774
2020 Kumar R, Muthukumar M. Surface Tension of Dielectric-Air Interfaces. The Journal of Physical Chemistry. B. PMID 32479081 DOI: 10.1021/Acs.Jpcb.0C01430  0.498
2019 Li W, Carrillo JY, Katsaras J, Sumpter BG, Ashkar R, Kumar R. The influence of curvature on domain distribution in binary mixture membranes. Soft Matter. PMID 31328764 DOI: 10.1039/C9Sm01262A  0.354
2019 Kumar R, Li W, Sumpter BG, Muthukumar M. Understanding the effects of dipolar interactions on the thermodynamics of diblock copolymer melts Journal of Chemical Physics. 151: 54902. DOI: 10.1063/1.5114799  0.583
2019 Mei H, Laws TS, Mahalik JP, Li J, Mah AH, Terlier T, Bonnesen P, Uhrig D, Kumar R, Stein GE, Verduzco R. Entropy and Enthalpy Mediated Segregation of Bottlebrush Copolymers to Interfaces Macromolecules. 52: 8910-8922. DOI: 10.1021/Acs.Macromol.9B01801  0.766
2019 Mah AH, Laws T, Li W, Mei H, Brown CC, Ievlev A, Kumar R, Verduzco R, Stein GE. Entropic and Enthalpic Effects in Thin Film Blends of Homopolymers and Bottlebrush Polymers Macromolecules. 52: 1526-1535. DOI: 10.1021/Acs.Macromol.8B02242  0.439
2018 Mahalik JP, Sumpter BG, Kumar R. Understanding the effects of symmetric salt on the structure of a planar dipolar polymer brush. The Journal of Chemical Physics. 149: 163334. PMID 30384744 DOI: 10.1063/1.5037077  0.726
2018 Kumar R, Lokitz B, Long TE, Sumpter BG. Enhanced scattering induced by electrostatic correlations in concentrated solutions of salt-free dipolar and ionic polymers. The Journal of Chemical Physics. 149: 163336. PMID 30384727 DOI: 10.1063/1.5044637  0.459
2018 Dugger JW, Li W, Chen M, Long TE, Welbourn RJL, Skoda MWA, Browning JF, Kumar R, Lokitz BS. Nanoscale resolution of electric-field induced motion in ionic diblock copolymer thin films. Acs Applied Materials & Interfaces. PMID 30180545 DOI: 10.1021/Acsami.8B11220  0.399
2018 Cummings J, Lowengrub JS, Sumpter BG, Wise SM, Kumar R. Modeling solvent evaporation during thin film formation in phase separating polymer mixtures. Soft Matter. PMID 29451285 DOI: 10.1039/C7Sm02560B  0.427
2018 Kim H, Arras MML, Mahalik JP, Wang W, Yu DM, Chernyy S, Goswami M, Kumar R, Sumpter BG, Hong K, Smith GS, Russell TP. Studies on the 3-Lamellar Morphology of Miktoarm Terpolymers Macromolecules. 51: 7491-7499. DOI: 10.1021/Acs.Macromol.8B01548  0.758
2018 Mahalik JP, Dugger JW, Sides SW, Sumpter BG, Lauter V, Kumar R. Interpreting Neutron Reflectivity Profiles of Diblock Copolymer Nanocomposite Thin Films Using Hybrid Particle-Field Simulations Macromolecules. 51: 3116-3125. DOI: 10.1021/Acs.Macromol.8B00180  0.757
2018 Chernyy S, Kirkensgaard JJK, Mahalik JP, Kim H, Arras MML, Kumar R, Sumpter BG, Smith GS, Mortensen K, Russell TP, Almdal K. Bulk and Surface Morphologies of ABC Miktoarm Star Terpolymers Composed of PDMS, PI, and PMMA Arms Macromolecules. 51: 1041-1051. DOI: 10.1021/Acs.Macromol.7B02485  0.743
2018 Chernyy S, Mahalik JP, Kumar R, Kirkensgaard JJK, Arras MML, Kim H, Schulte L, Ndoni S, Smith GS, Mortensen K, Sumpter BG, Russell TP, Almdal K. On the morphological behavior of ABC miktoarm stars containing poly(cis 1,4-isoprene), poly(styrene), and poly(2-vinylpyridine) Journal of Polymer Science Part B: Polymer Physics. 56: 1491-1504. DOI: 10.1002/Polb.24733  0.73
2018 Chen M, Dugger JW, Li X, Wang Y, Kumar R, Meek KM, Uhrig DW, Browning JF, Madsen LA, Long TE, Lokitz BS. Polymerized ionic liquids: Effects of counter-anions on ion conduction and polymerization kinetics Journal of Polymer Science Part a: Polymer Chemistry. 56: 1346-1357. DOI: 10.1002/Pola.29015  0.321
2017 Bocharova V, Wojnarowska Z, Cao PF, Fu Y, Kumar R, Li B, Novikov VN, Zhao S, Kisliuk A, Saito T, Mays JW, Sumpter BG, Sokolov AP. Influence of Chain Rigidity and Dielectric Constant on the Glass Transition Temperature in Polymerized Ionic Liquids. The Journal of Physical Chemistry. B. PMID 29183116 DOI: 10.1021/Acs.Jpcb.7B09423  0.376
2017 Fu Y, Bocharova V, Ma M, Sokolov AP, Sumpter BG, Kumar R. Effects of counterion size and backbone rigidity on the dynamics of ionic polymer melts and glasses. Physical Chemistry Chemical Physics : Pccp. PMID 28975173 DOI: 10.1039/C7Cp04249C  0.391
2017 Mahalik JP, Sumpter BG, Kumar R. Attraction in opposing planar dipolar polymer brushes. Langmuir : the Acs Journal of Surfaces and Colloids. PMID 28763222 DOI: 10.1021/Acs.Langmuir.7B01566  0.78
2017 Muckley ES, Jacobs CB, Vidal K, Mahalik JP, Kumar R, Sumpter BG, Ivanov I. New insights on electro-optical response of PEDOT:PSS film to humidity. Acs Applied Materials & Interfaces. PMID 28443655 DOI: 10.1021/Acsami.7B03128  0.706
2017 Kumar R, Mahalik JP, Bocharova V, Stacy EW, Gainaru C, Saito T, Gobet MP, Greenbaum S, Sumpter BG, Sokolov AP. A Rayleighian approach for modeling kinetics of ionic transport in polymeric media. The Journal of Chemical Physics. 146: 064902. PMID 28201898 DOI: 10.1063/1.4975309  0.726
2017 Wojnarowska Z, Feng H, Fu Y, Cheng S, Carroll B, Kumar R, Novikov VN, Kisliuk AM, Saito T, Kang N, Mays JW, Sokolov AP, Bocharova V. Effect of Chain Rigidity on the Decoupling of Ion Motion from Segmental Relaxation in Polymerized Ionic Liquids: Ambient and Elevated Pressure Studies Macromolecules. 50: 6710-6721. DOI: 10.1021/Acs.Macromol.7B01217  0.381
2017 Misichronis K, Chen J, Imel A, Kumar R, Thostenson J, Hong K, Dadmun M, Sumpter BG, Kennemur JG, Hadjichristidis N, Mays JW, Avgeropoulos A. Investigations on the Phase Diagram and Interaction Parameter of Poly(styrene-b-1,3-cyclohexadiene) Copolymers Macromolecules. 50: 2354-2363. DOI: 10.1021/Acs.Macromol.7B00104  0.642
2016 Holt AP, Bocharova V, Cheng S, Kisliuk AM, White BT, Saito T, Uhrig D, Mahalik JP, Kumar R, Imel AE, Etampawala T, Martin H, Sikes N, Sumpter BG, Dadmun MD, et al. Controlling Interfacial Dynamics: Covalent Bonding versus Physical Adsorption in Polymer Nanocomposites. Acs Nano. PMID 27337392 DOI: 10.1021/Acsnano.6B02501  0.786
2016 Carrillo JY, Seibers Z, Kumar R, Matheson MA, Ankner JF, Goswami M, Bhaskaran-Nair K, Shelton WA, Sumpter BG, Kilbey SM. Petascale Simulations of the Morphology and the Molecular Interface of Bulk Heterojunctions. Acs Nano. PMID 27299676 DOI: 10.1021/Acsnano.6B03009  0.382
2016 Mahalik JP, Sumpter BG, Kumar R. Vertical Phase Segregation Induced by Dipolar Interactions in Planar Polymer Brushes Macromolecules. 49: 7096-7107. DOI: 10.1021/Acs.Macromol.6B01138  0.781
2016 Mahalik JP, Yang Y, Deodhar C, Ankner JF, Lokitz BS, Kilbey SM, Sumpter BG, Kumar R. Monomer volume fraction profiles in pH responsive planar polyelectrolyte brushes Journal of Polymer Science, Part B: Polymer Physics. 54: 956-964. DOI: 10.1002/Polb.24008  0.772
2015 Herath N, Das S, Keum JK, Zhu J, Kumar R, Ivanov IN, Sumpter BG, Browning JF, Xiao K, Gu G, Joshi P, Smith S, Lauter V. Peculiarity of Two Thermodynamically-Stable Morphologies and Their Impact on the Efficiency of Small Molecule Bulk Heterojunction Solar Cells. Scientific Reports. 5: 13407. PMID 26315070 DOI: 10.1038/Srep13407  0.402
2015 Zhu J, Han Y, Kumar R, He Y, Hong K, Bonnesen PV, Sumpter BG, Smith SC, Smith GS, Ivanov IN, Do C. Controlling molecular ordering in solution-state conjugated polymers. Nanoscale. PMID 26242896 DOI: 10.1039/C5Nr02037A  0.426
2015 Strelcov E, Kumar R, Bocharova V, Sumpter BG, Tselev A, Kalinin SV. Nanoscale lubrication of ionic surfaces controlled via a strong electric field. Scientific Reports. 5: 8049. PMID 25623295 DOI: 10.1038/Srep08049  0.304
2015 Kumar R, Bocharova V, Strelcov E, Tselev A, Kravchenko II, Berdzinski S, Strehmel V, Ovchinnikova OS, Minutolo JA, Sangoro JR, Agapov AL, Sokolov AP, Kalinin SV, Sumpter BG. Ion transport and softening in a polymerized ionic liquid. Nanoscale. 7: 947-55. PMID 25463322 DOI: 10.1039/C4Nr05491A  0.392
2015 Kumar R, Lokitz BS, Sides SW, Chen J, Heller WT, Ankner JF, Browning JF, Kilbey SM, Sumpter BG. Microphase separation in thin films of lamellar forming polydisperse di-block copolymers Rsc Advances. 5: 21336-21348. DOI: 10.1039/C5Ra00974J  0.356
2015 Carrillo JMY, Cheng S, Kumar R, Goswami M, Sokolov AP, Sumpter BG. Untangling the Effects of Chain Rigidity on the Structure and Dynamics of Strongly Adsorbed Polymer Melts Macromolecules. 48: 4207-4219. DOI: 10.1021/Acs.Macromol.5B00624  0.333
2015 Bocharova V, Agapov AL, Tselev A, Collins L, Kumar R, Berdzinski S, Strehmel V, Kisliuk A, Kravchenko II, Sumpter BG, Sokolov AP, Kalinin SV, Strelcov E. Controlled nanopatterning of a polymerized ionic liquid in a strong electric field Advanced Functional Materials. 25: 805-811. DOI: 10.1002/Adfm.201402852  0.356
2014 Kumar R, Sumpter BG, Muthukumar M. Enhanced Phase Segregation Induced by Dipolar Interactions in Polymer Blends Macromolecules. 47: 6491-6502. DOI: 10.1021/Ma501067R  0.63
2014 Shao M, Keum JK, Kumar R, Chen J, Browning JF, Das S, Chen W, Hou J, Do C, Littrell KC, Rondinone A, Geohegan DB, Sumpter BG, Xiao K. Understanding how processing additives tune the nanoscale morphology of high efficiency organic photovoltaic blends: From casting solution to spun-cast thin film Advanced Functional Materials. DOI: 10.1002/Adfm.201401547  0.351
2013 Carrillo JM, Kumar R, Goswami M, Sumpter BG, Brown WM. New insights into the dynamics and morphology of P3HT:PCBM active layers in bulk heterojunctions. Physical Chemistry Chemical Physics : Pccp. 15: 17873-82. PMID 24056906 DOI: 10.1039/C3Cp53271B  0.385
2013 Kumar R, Goswami M, Sumpter BG, Novikov VN, Sokolov AP. Effects of backbone rigidity on the local structure and dynamics in polymer melts and glasses Physical Chemistry Chemical Physics. 15: 4604-4609. PMID 23423355 DOI: 10.1039/C3Cp43737J  0.429
2013 Dyer C, Driva P, Sides SW, Sumpter BG, Mays JW, Chen J, Kumar R, Goswami M, Dadmun MD. Effect of macromolecular architecture on the morphology of polystyrene-polyisoprene block copolymers Macromolecules. 46: 2023-2031. DOI: 10.1021/Ma202650A  0.615
2013 Misichronis K, Rangou S, Ashcraft E, Kumar R, Dadmun M, Sumpter BG, Zafeiropoulos NE, Mays JW, Avgeropoulos A. Synthesis, characterization (molecular-morphological) and theoretical morphology predictions of linear triblock terpolymers containing poly(cyclohexadiene) Polymer (United Kingdom). 54: 1480-1489. DOI: 10.1016/J.Polymer.2013.01.005  0.622
2012 Kumar R, Sumpter BG, Kilbey SM. Charge regulation and local dielectric function in planar polyelectrolyte brushes. The Journal of Chemical Physics. 136: 234901. PMID 22779613 DOI: 10.1063/1.4729158  0.369
2012 Courtier-Murias D, Farooq H, Masoom H, Botana A, Soong R, Longstaffe JG, Simpson MJ, Maas WE, Fey M, Andrew B, Struppe J, Hutchins H, Krishnamurthy S, Kumar R, Monette M, et al. Comprehensive multiphase NMR spectroscopy: basic experimental approaches to differentiate phases in heterogeneous samples. Journal of Magnetic Resonance (San Diego, Calif. : 1997). 217: 61-76. PMID 22425441 DOI: 10.1016/J.Jmr.2012.02.009  0.31
2012 Riggleman RA, Kumar R, Fredrickson GH. Investigation of the interfacial tension of complex coacervates using field-theoretic simulations. The Journal of Chemical Physics. 136: 024903. PMID 22260612 DOI: 10.1063/1.3674305  0.702
2012 Riggleman RA, Kumar R, Fredrickson GH. Investigation of the interfacial tension of complex coacervates using field-theoretic simulations Journal of Chemical Physics. 136. DOI: 10.1063/1.3674305  0.64
2012 Wang X, Goswami M, Kumar R, Sumpter BG, Mays J. Morphologies of block copolymers composed of charged and neutral blocks Soft Matter. 8: 3036-3052. DOI: 10.1039/C2Sm07223H  0.367
2012 Mays JW, Kumar R, Sides SW, Goswami M, Sumpter BG, Hong K, Wu X, Russell TP, Gido SP, Avgeropoulos A, Tsoukatos T, Hadjichristidis N, Beyer FL. Morphologies of poly(cyclohexadiene) diblock copolymers: Effect of conformational asymmetry Polymer (United Kingdom). 53: 5155-5162. DOI: 10.1016/J.Polymer.2012.08.047  0.388
2011 Yuen JD, Kumar R, Zakhidov D, Seifter J, Lim B, Heeger AJ, Wudl F. Ambipolarity in benzobisthiadiazole-based donor-acceptor conjugated polymers. Advanced Materials (Deerfield Beach, Fla.). 23: 3780-5. PMID 21766347 DOI: 10.1002/Adma.201101134  0.367
2011 Goswami M, Kumar R, Sumpter BG, Mays J. Breakdown of inverse morphologies in charged diblock copolymers. The Journal of Physical Chemistry. B. 115: 3330-8. PMID 21405029 DOI: 10.1021/Jp111001N  0.398
2011 Wang M, Sun Y, Tong M, Chesnut ES, Seo JH, Kumar R, Wudl F. The Ni=Si=N link as electron accepting moiety for stable, solution-processable conjugated oligomers Journal of Polymer Science, Part a: Polymer Chemistry. 49: 441-451. DOI: 10.1002/Pola.24456  0.311
2010 Kumar R, Audus D, Fredrickson GH. Phase separation in symmetric mixtures of oppositely charged rodlike polyelectrolytes. The Journal of Physical Chemistry. B. 114: 9956-76. PMID 20684618 DOI: 10.1021/Jp101413A  0.766
2010 Brunetti FG, Kumar R, Wudl F. Organic electronics from perylene to organic photovoltaics: Painting a brief history with a broad brush Journal of Materials Chemistry. 20: 2934-2948. DOI: 10.1039/B921677D  0.316
2010 Kumar R, Audus D, Fredrickson GH. Phase separation in symmetric mixtures of oppositely charged rodlike polyelectrolytes Journal of Physical Chemistry B. 114: 9956-9976. DOI: 10.1021/jp101413a  0.741
2009 Kumar R, Kundagrami A, Muthukumar M. Counterion adsorption on flexible polyelectrolytes: comparison of theories. Macromolecules. 42: 1370-1379. PMID 20686641 DOI: 10.1021/Ma801799E  0.54
2009 Kumar R, Muthukumar M. Origin of translocation barriers for polyelectrolyte chains. The Journal of Chemical Physics. 131: 194903. PMID 19929072 DOI: 10.1063/1.3264632  0.572
2009 Mehta SK, Chaudhary S, Kumar R, Bhasin KK. Facile solubilization of organochalcogen compounds in mixed micelle formation of binary and ternary cationic-nonionic surfactant mixtures. The Journal of Physical Chemistry. B. 113: 7188-93. PMID 19397306 DOI: 10.1021/Jp811310F  0.31
2009 Kumar R, Fredrickson GH. Theory of polyzwitterion conformations Journal of Chemical Physics. 131. DOI: 10.1063/1.3216107  0.556
2008 Kumar R, Muthukumar M. Confinement free energy of flexible polyelectrolytes in spherical cavities. The Journal of Chemical Physics. 128: 184902. PMID 18532843 DOI: 10.1063/1.2917354  0.584
2007 Kumar R, Muthukumar M. Microphase separation in polyelectrolytic diblock copolymer melt: weak segregation limit. The Journal of Chemical Physics. 126: 214902. PMID 17567217 DOI: 10.1063/1.2737049  0.599
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