World's Best Scientists 2026 revealed!

D-Index & Metrics

Materials Science

D-Index
85
Citations
25451
World Ranking
2165
National Ranking
638

Chemistry

D-Index
84
Citations
25181
World Ranking
2823
National Ranking
960

Ralph H. Colby publication distribution in Materials Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Materials Science in 2026. The highlighted bar marks where Ralph H. Colby sits on this spectrum.

50–69 publications: 28 scientists 70–89 publications: 152 scientists 90–109 publications: 356 scientists 110–129 publications: 487 scientists 130–149 publications: 723 scientists 150–169 publications: 835 scientists 170–189 publications: 850 scientists 190–209 publications: 891 scientists 210–229 publications: 862 scientists 230–249 publications: 766 scientists 250–269 publications: 726 scientists 270–289 publications: 665 scientists 290–309 publications: 593 scientists 310–329 publications: 537 scientists 330–349 publications: 477 scientists 350–369 publications: 440 scientists 370–389 publications: 356 scientists 390–409 publications: 321 scientists 410–429 publications: 256 scientists 430–449 publications: 246 scientists 450–469 publications: 216 scientists 470–489 publications: 212 scientists 490–509 publications: 174 scientists 510–529 publications: 194 scientists 530–549 publications: 162 scientists 550–569 publications: 131 scientists 570–589 publications: 111 scientists 590–609 publications: 103 scientists 610–629 publications: 99 scientists 630–649 publications: 77 scientists 650–669 publications: 92 scientists 670–689 publications: 56 scientists 690–709 publications: 53 scientists 710–729 publications: 53 scientists 730–749 publications: 38 scientists 750–769 publications: 52 scientists 770–789 publications: 43 scientists 790–809 publications: 38 scientists 810–829 publications: 34 scientists 830–849 publications: 25 scientists 850–869 publications: 18 scientists 870–889 publications: 20 scientists 890–909 publications: 24 scientists 910–929 publications: 27 scientists 930–949 publications: 20 scientists 950–969 publications: 17 scientists 970–989 publications: 10 scientists 990–1,009 publications: 16 scientists 1,010–1,029 publications: 13 scientists 1,030–1,049 publications: 12 scientists 1,050–1,069 publications: 9 scientists 1,070–1,089 publications: 8 scientists 1,090–1,109 publications: 7 scientists 1,110–1,129 publications: 9 scientists 1,130–1,149 publications: 2 scientists 1,150–1,162 publications: 5 scientists 1,163+ publications: 100 scientists
50 publications 1,163+

This scientist: 373 publications — 74th percentile

74% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,163 publications or more.

Ralph H. Colby D-index placement in Materials Science in 2026

The chart shows the D-index (discipline H-index) distribution of Materials Science scientists ranked by Research.com in 2026. The highlighted bar marks where Ralph H. Colby sits on this spectrum.

40–41 D-Index: 211 scientists 42–43 D-Index: 450 scientists 44–45 D-Index: 612 scientists 46–47 D-Index: 612 scientists 48–49 D-Index: 598 scientists 50–51 D-Index: 657 scientists 52–53 D-Index: 667 scientists 54–55 D-Index: 621 scientists 56–57 D-Index: 597 scientists 58–59 D-Index: 610 scientists 60–61 D-Index: 587 scientists 62–63 D-Index: 606 scientists 64–65 D-Index: 533 scientists 66–67 D-Index: 490 scientists 68–69 D-Index: 469 scientists 70–71 D-Index: 378 scientists 72–73 D-Index: 421 scientists 74–75 D-Index: 359 scientists 76–77 D-Index: 323 scientists 78–79 D-Index: 299 scientists 80–81 D-Index: 230 scientists 82–83 D-Index: 210 scientists 84–85 D-Index: 195 scientists 86–87 D-Index: 203 scientists 88–89 D-Index: 175 scientists 90–91 D-Index: 175 scientists 92–93 D-Index: 142 scientists 94–95 D-Index: 121 scientists 96–97 D-Index: 117 scientists 98–99 D-Index: 107 scientists 100–101 D-Index: 88 scientists 102–103 D-Index: 85 scientists 104–105 D-Index: 68 scientists 106–107 D-Index: 62 scientists 108–109 D-Index: 57 scientists 110–111 D-Index: 45 scientists 112–113 D-Index: 49 scientists 114–115 D-Index: 50 scientists 116–117 D-Index: 34 scientists 118–119 D-Index: 38 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 29 scientists 124–125 D-Index: 28 scientists 126–127 D-Index: 24 scientists 128–129 D-Index: 33 scientists 130–131 D-Index: 28 scientists 132–133 D-Index: 21 scientists 134–135 D-Index: 20 scientists 136–137 D-Index: 23 scientists 138–139 D-Index: 17 scientists 140–141 D-Index: 12 scientists 142–143 D-Index: 17 scientists 144–145 D-Index: 21 scientists 146–147 D-Index: 13 scientists 148–149 D-Index: 11 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 13 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 4 scientists 162–163 D-Index: 4 scientists 164 D-Index: 3 scientists 165+ D-Index: 98 scientists
40 D-Index 165+

This scientist: 85 D-Index — 84th percentile

84% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 165 D-Index or more.

Overview

Ralph H. Colby is affiliated with Pennsylvania State University in the United States and conducts research primarily in the fields of Materials Science and Engineering. Their work involves significant contributions to subfields including Polymers and Plastics, Electrical and Electronic Engineering, Biomedical Engineering, Materials Chemistry, and Fluid Flow and Transfer Processes.

Their research topics cover a range of areas related to polymer science and materials technologies. Main themes include:

  • Polymer crystallization and properties
  • Conducting polymers and applications
  • Rheology and Fluid Dynamics Studies
  • Advanced Battery Materials and Technologies
  • Surfactants and Colloidal Systems
  • Polymer Foaming and Composites
  • Polymer Nanocomposites and Properties

Colby has published extensively in several prominent journals. These frequent publication venues are:

  • Macromolecules
  • Journal of Polymer Science
  • Journal of Rheology
  • ACS Macro Letters
  • ACS Applied Polymer Materials

Among recent papers authored or co-authored by Colby are:

  • "Room Temperature to 150 °C Lithium Metal Batteries Enabled by a Rigid Molecular Ionic Composite Electrolyte," 2021, Advanced Energy Materials
  • "Rheology of Entangled Polyelectrolyte Solutions," 2021, Macromolecules
  • "Uncorrelated Lithium-Ion Hopping in a Dynamic Solvent-Anion Network," 2023, ACS Energy Letters
  • "Predicting the Plateau Modulus from Molecular Parameters of Conjugated Polymers," 2022, ACS Central Science
  • "Ion Transport and Mechanical Properties of Non-Crystallizable Molecular Ionic Composite Electrolytes," 2020, Macromolecules

They frequently collaborate with several co-authors, including:

  • Alicyn M. Rhoades
  • Daniele Parisi
  • Jiho Seo
  • Aijie Han
  • Louis A. Madsen

Best Publications

  • Anisotropic self-assembly of spherical polymer-grafted nanoparticles

    Pinar Akcora;Hongjun Liu;Sanat K. Kumar;Joseph Moll

  • Scaling theory of polyelectrolyte solutions

    Andrey V. Dobrynin;Ralph H. Colby;Michael Rubinstein

  • Correlations of solution rheology with electrospun fiber formation of linear and branched polyesters

    Matthew G. McKee;Garth L. Wilkes;Ralph H. Colby;Timothy Edward Long

  • Dynamics of reversible networks

    Ludwik Leibler;Ludwik Leibler;J Michael Rubinstein;Ralph H. Colby;Ralph H. Colby

  • Structure and linear viscoelasticity of flexible polymer solutions: comparison of polyelectrolyte and neutral polymer solutions

    Ralph H. Colby

  • Modeling electrode polarization in dielectric spectroscopy: Ion mobility and mobile ion concentration of single-ion polymer electrolytes

    Robert J. Klein;Shihai Zhang;Shichen Dou;Brad H. Jones

  • The melt viscosity-molecular weight relationship for linear polymers

    Ralph H. Colby;Lewis J. Fetters;William W. Graessley

  • Lamellae orientation in dynamically sheared diblock copolymer melts

    Kurt A. Koppi;Matthew Tirrell;Frank S. Bates;Kristoffer Almdal

  • Two-parameter scaling for polymers in Θ solvents

    Ralph H. Colby;Michael Rubinstein

  • Chain Dimensions and Entanglement Spacings

    L. J. Fetters;D. J. Lohse;R. H. Colby

  • Elastic modulus and equilibrium swelling of poly(dimethylsiloxane) networks

    Suman K. Patel;Shawn Malone;Claude Cohen;Jeffrey R. Gillmor

  • Elastic Modulus and Equilibrium Swelling of Polyelectrolyte Gels

    Michael Rubinstein;Ralph H. Colby;Andrey V. Dobrynin;Jean Francois Joanny

  • DIAGNOSING LONG-CHAIN BRANCHING IN POLYETHYLENES

    J. Janzen;R.H. Colby

  • Network Modulus and Superelasticity

    Sergei P. Obukhov;Michael Rubinstein;Ralph H. Colby

  • Dielectric spectroscopy and conductivity of polyelectrolyte solutions

    F Bordi;C Cametti;R H Colby

  • Breakdown of time-temperature superposition in miscible polymer blends

    Ralph H. Colby

  • Reinforcement of rubber by fractal aggregates

    T. A. Witten;M. Rubinstein;R. H. Colby

  • Self‐consistent theory of polydisperse entangled polymers: Linear viscoelasticity of binary blends

    Michael Rubinstein;Ralph H. Colby

  • Constraint release in polymer melts: tube reorganization versus tube dilation

    Jean Louis Viovy;Michael Rubinstein;Ralph H. Colby

  • Effects of concentration and thermodynamic interaction on the viscoelastic properties of polymer solutions

    Ralph H. Colby;Lewis J. Fetters;Walter G. Funk;William W. Graessley;William W. Graessley

  • Concentration fluctuation induced dynamic heterogeneities in polymer blends

    Sanat K. Kumar;Ralph H. Colby;Spiros H. Anastasiadis;George Fytas

Frequent Co-Authors

James Runt
James Runt Pennsylvania State University
Sanat K. Kumar
Sanat K. Kumar Columbia University
Karen I. Winey
Karen I. Winey University of Pennsylvania
Michael Rubinstein
Michael Rubinstein Duke University
Timothy E. Long
Timothy E. Long Arizona State University
Harry W. Gibson
Harry W. Gibson Virginia Tech
Dimitris Vlassopoulos
Dimitris Vlassopoulos Foundation for Research and Technology Hellas
Scott T. Milner
Scott T. Milner Pennsylvania State University
Michael J. Janik
Michael J. Janik Pennsylvania State University
Christopher K. Ober
Christopher K. Ober Cornell University

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