World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
59
Citations
13703
World Ranking
10067
National Ranking
2801

Robert Simha publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Robert Simha sits on this spectrum.

61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61 publications 1,295+

This scientist: 238 publications — 46th percentile

46% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

Robert Simha D-index placement in Chemistry in 2026

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

40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40 D-Index 159+

This scientist: 59 D-Index — 44th percentile

44% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Research.com Recognitions

  • 1956 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

Robert Simha was affiliated with Case Western Reserve University in the United States during their academic career.

The scientist was recognized as a Fellow of the American Association for the Advancement of Science (AAAS) in 1956.

There is no publicly available information regarding Robert Simha's recent papers, frequent co-authors, publication venues, book publications, or detailed fields and subfields of study.

Due to the limited data on their specific research topics and publications, no detailed summary of their scientific contributions can be provided beyond the known affiliation and award.

Best Publications

  • On the Statistical Thermodynamics of Spherical and Chain Molecule Fluids

    Robert Simha;Thomas Somcynsky

  • On a General Relation Involving the Glass Temperature and Coefficients of Expansion of Polymers

    Unknown

  • The characterization of amino acid sequences in proteins by statistical methods

    Unknown

  • Pressure-Volume-Temperature Studies of Amorphous and Crystallizable Polymers. I. Experimental

    Olagoke Olabisi;Robert Simha

  • Pressure‐Volume‐Temperature Properties and Transitions of Amorphous Polymers; Polystyrene and Poly (orthomethylstyrene)

    A. Quach;Robert Simha

  • A Treatment of the Viscosity of Concentrated Suspensions

    Robert Simha

  • Free volume and physical aging of poly(vinyl acetate) studied by positron annihilation

    Y. Kobayashi;W. Zheng;E. F. Meyer;J. D. McGervey

  • The Adsorption of Flexible Macromolecules. II

    Robert Simha;H. L. Frisch;F. R. Eirich

  • Theory of Depolymerization of Long Chain Molecules

    Unknown

  • Deformation-Induced Color Changes in Mechanochromic Polyethylene Blends

    Brent R. Crenshaw;Mark Burnworth;Devang Khariwala;Anne Hiltner

  • Kinetics of Chain Depolymerization

    Robert Simha;L. A. Wall

  • Free volume and the kinetics of aging of polymer glasses

    Richard E. Robertson;Robert Simha;John G. Curro

  • Viscosity and the Shape of Protein Molecules

    Unknown

  • Diffusion model for volume recovery in glasses

    John G. Curro;R. R. Lagasse;Robert Simha

  • Configurational Thermodynamics of the Liquid and Glassy Polymeric States

    Robert Simha

  • Kinetics of Degradation and Size Distribution of Long Chain Polymers

    Robert Simha

  • The depolymerization of polymethylene and polyethylene

    L. A. Wall;S. L. Madorsky;D. W. Brown;S. Straus

  • Positron annihilation lifetime studies of changes in free volume on cross-linking cis-polyisoprene, high-vinyl polybutadiene, and their miscible blends

    R. Srithawatpong;Z. L. Peng;B. G. Olson;A. M. Jamieson

  • Thermal Expansion of Amorphous Polymers at Atmospheric Pressure. II. Theoretical Considerations

    Robert Simha;Phillip S. Wilson

  • Molecular weight-dependence of free volume in polystyrene studied by positron annihilation measurements

    Z. Yu;U. Yahsi;J. D. McGervey;A. M. Jamieson

  • Pressure-volume-temperature properties of amorphous polymers: empirical and theoretical predictions

    Robert Simha;P. S. Wilson;Olagoke Olabisi

  • Analytical Representation of Solutions to Lattice-Hole Theory

    Leszek A. Utracki;Robert Simha

  • Measurement of gas solubility in linear/branched PP melts

    G. Li;J. Wang;C. B. Park;R. Simha

  • Configurational Thermodynamic Properties of Polymer Liquids and Glasses. Poly(vinyl acetate). II

    John E. McKinney;Robert Simha

Frequent Co-Authors

John G. Curro
John G. Curro New Mexico Institute of Mining and Technology
Leszek A. Utracki
Leszek A. Utracki National Academies of Sciences, Engineering, and Medicine
Chul B. Park
Chul B. Park University of Toronto
Christoph Weder
Christoph Weder University of Fribourg
Lewis J. Fetters
Lewis J. Fetters Cornell University
Hatsuo Ishida
Hatsuo Ishida Case Western Reserve University
Patrick T. Mather
Patrick T. Mather Pennsylvania State University

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