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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Materials Science 85 2182 2107 640 600 517 23329
Chemistry 84 2846 2558 966 808 476 22926

John M. Torkelson publications per year

The chart shows the history of publications by John M. Torkelson between 1977 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. John M. Torkelson published across 49 years, from 1977 to 2025, averaging 11.4 papers a year. Output peaked at 32 publications in 2008. 50 of the 557 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1977 to 2025. Vertical axis: number of publications, 0 to 32. Peak 32 publications in 2008. 1977: 1 publication 1978: 0 publications 1979: 1 publication 1980: 0 publications 1981: 1 publication 1982: 0 publications 1983: 1 publication 1984: 2 publications 1985: 4 publications 1986: 5 publications 1987: 6 publications 1988: 8 publications 1989: 9 publications 1990: 16 publications 1991: 1 publication 1992: 8 publications 1993: 5 publications 1994: 8 publications 1995: 6 publications 1996: 9 publications 1997: 7 publications 1998: 11 publications 1999: 8 publications 2000: 10 publications 2001: 6 publications 2002: 19 publications 2003: 14 publications 2004: 17 publications 2005: 23 publications 2006: 14 publications 2007: 29 publications 2008: 32 publications 2009: 20 publications 2010: 16 publications 2011: 12 publications 2012: 15 publications 2013: 17 publications 2014: 15 publications 2015: 21 publications 2016: 24 publications 2017: 19 publications 2018: 9 publications 2019: 11 publications 2020: 10 publications 2021: 14 publications 2022: 10 publications 2023: 13 publications 2024: 23 publications 2025: 27 publications
1977 2025

557 publications in total across all disciplines

View publications per year as a table
John M. Torkelson: publications per year, 1977 to 2025
Year Publications
1977 1
1978 0
1979 1
1980 0
1981 1
1982 0
1983 1
1984 2
1985 4
1986 5
1987 6
1988 8
1989 9
1990 16
1991 1
1992 8
1993 5
1994 8
1995 6
1996 9
1997 7
1998 11
1999 8
2000 10
2001 6
2002 19
2003 14
2004 17
2005 23
2006 14
2007 29
2008 32
2009 20
2010 16
2011 12
2012 15
2013 17
2014 15
2015 21
2016 24
2017 19
2018 9
2019 11
2020 10
2021 14
2022 10
2023 13
2024 23
2025 27
Total 557
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John M. Torkelson 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 John M. Torkelson sits on this spectrum.

No. of scientists
200 400 600 800
Bar chart with 57 bars. Horizontal axis: publications, 50–69 to 1,163+. Vertical axis: number of scientists, 0 to 891. Most scientists, 891, have 190–209 publications. The last bar groups every scientist with 1,163 publications or more. The highlighted bar, 510–529 publications, is where this scientist sits. 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
50–69 publications 1,163+

This scientist: 517 publications — 88th percentile

88% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Materials Science scientists by publication count, Research.com 2026 ranking edition. Based on 12,847 ranked scientists.
Publications Scientists This scientist
50–69 28
70–89 152
90–109 356
110–129 487
130–149 723
150–169 835
170–189 850
190–209 891
210–229 862
230–249 766
250–269 726
270–289 665
290–309 593
310–329 537
330–349 477
350–369 440
370–389 356
390–409 321
410–429 256
430–449 246
450–469 216
470–489 212
490–509 174
510–529 194 517
530–549 162
550–569 131
570–589 111
590–609 103
610–629 99
630–649 77
650–669 92
670–689 56
690–709 53
710–729 53
730–749 38
750–769 52
770–789 43
790–809 38
810–829 34
830–849 25
850–869 18
870–889 20
890–909 24
910–929 27
930–949 20
950–969 17
970–989 10
990–1,009 16
1,010–1,029 13
1,030–1,049 12
1,050–1,069 9
1,070–1,089 8
1,090–1,109 7
1,110–1,129 9
1,130–1,149 2
1,150–1,162 5
1,163+ 100
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John M. Torkelson 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 John M. Torkelson sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 64 bars. Horizontal axis: D-Index, 40–41 to 165+. Vertical axis: number of scientists, 0 to 667. Most scientists, 667, have 52–53 D-Index. The last bar groups every scientist with 165 D-Index or more. The highlighted bar, 84–85 D-Index, is where this scientist sits. 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
40–41 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.

View D-Index distribution as a table
Number of Materials Science scientists by D-index, Research.com 2026 ranking edition. Based on 12,847 ranked scientists.
D-Index Scientists This scientist
40–41 211
42–43 450
44–45 612
46–47 612
48–49 598
50–51 657
52–53 667
54–55 621
56–57 597
58–59 610
60–61 587
62–63 606
64–65 533
66–67 490
68–69 469
70–71 378
72–73 421
74–75 359
76–77 323
78–79 299
80–81 230
82–83 210
84–85 195 85
86–87 203
88–89 175
90–91 175
92–93 142
94–95 121
96–97 117
98–99 107
100–101 88
102–103 85
104–105 68
106–107 62
108–109 57
110–111 45
112–113 49
114–115 50
116–117 34
118–119 38
120–121 37
122–123 29
124–125 28
126–127 24
128–129 33
130–131 28
132–133 21
134–135 20
136–137 23
138–139 17
140–141 12
142–143 17
144–145 21
146–147 13
148–149 11
150–151 14
152–153 13
154–155 9
156–157 10
158–159 7
160–161 4
162–163 4
164 3
165+ 98
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Research.com Recognitions

  • 2012 - Fellow of the American Association for the Advancement of Science (AAAS)
  • 1999 - Fellow of American Physical Society (APS) Citation For imaginative and successful applications of flourescence spectroscopy to polymer physics issues ranging from free volume to free radical polymerization

Overview

John M. Torkelson is affiliated with Northwestern University in the United States. Their research concentrates primarily in the fields of Materials Science and Chemistry, with a notable focus on polymers, polymer composites, and related materials chemistry.

The main fields of study encompass:

  • Materials Science
  • Chemistry

Torkelson's subfields of study include:

  • Polymers and Plastics
  • Organic Chemistry
  • Process Chemistry and Technology
  • Materials Chemistry
  • Biomaterials

The core topics addressed in their work cover:

  • Polymer composites and self-healing
  • Carbon dioxide utilization in catalysis
  • Advanced Polymer Synthesis and Characterization
  • Biodegradable polymer synthesis and properties
  • Synthetic Organic Chemistry Methods
  • Polymer crystallization and properties
  • Material Dynamics and Properties

Among their frequent coauthors are Nathan S. Purwanto, Tong Wang, Logan M. Fenimore, Yixuan Chen, and Mathew J. Suazo. This collaborative work has resulted in publications spread across multiple prominent scientific venues.

Frequent publication venues where Torkelson's work appears include:

  • Macromolecules
  • ACS Applied Polymer Materials
  • Polymer
  • Polymer Chemistry
  • ACS Macro Letters

Recent representative papers by John M. Torkelson illustrate their research directions:

  • "Photocurable bioresorbable adhesives as functional interfaces between flexible bioelectronic devices and soft biological tissues", 2021, Nature Materials
  • "Arresting Elevated-Temperature Creep and Achieving Full Cross-Link Density Recovery in Reprocessable Polymer Networks and Network Composites via Nitroxide-Mediated Dynamic Chemistry", 2021, Macromolecules
  • "Reprocessable covalent adaptable networks with excellent elevated-temperature creep resistance: facilitation by dynamic, dissociative bis(hindered amino) disulfide bonds", 2021, Polymer Chemistry
  • "Dynamic Covalent Polyurethane Networks with Excellent Property and Cross-Link Density Recovery after Recycling and Potential for Monomer Recovery", 2020, ACS Applied Polymer Materials
  • "Simple upcycling of virgin and waste polyethylene into covalent adaptable networks: catalyst-free, radical-based reactive processing with dialkylamino disulfide bonds", 2022, Journal of Materials Chemistry A

John M. Torkelson has been recognized by professional organizations, including being named a Fellow of the American Association for the Advancement of Science in 2012. Earlier, in 1999, they were designated a Fellow of the American Physical Society with citation noting contributions in applying fluorescence spectroscopy to polymer physics, particularly regarding free volume and free radical polymerization.

Best Publications

  • The distribution of glass-transition temperatures in nanoscopically confined glass formers

    Christopher John Ellison;John M. Torkelson

  • Structural Relaxation of Polymer Glasses at Surfaces, Interfaces, and In Between

    Rodney D. Priestley;Christopher John Ellison;Linda J. Broadbelt;John M. Torkelson

  • Spin coating of thin and ultrathin polymer films

    David B. Hall;Patrick Underhill;John M. Torkelson

  • Model polymer nanocomposites provide an understanding of confinement effects in real nanocomposites.

    Perla Rittigstein;Rodney D. Priestley;Linda J. Broadbelt;John M. Torkelson

  • Crumpled graphene nanosheets as highly effective barrier property enhancers.

    Owen C. Compton;Soyoung Kim;Cynthia Pierre;John M. Torkelson

  • Polymer-nanoparticle interfacial interactions in polymer nanocomposites: Confinement effects on glass transition temperature and suppression of physical aging

    Perla Rittigstein;John M. Torkelson

  • On measuring the distribution of local free volume in glassy polymers by photochromic and fluorescence techniques

    John G. Victor;John M. Torkelson

  • Impacts of polystyrene molecular weight and modification to the repeat unit structure on the glass transition-nanoconfinement effect and the cooperativity length scale

    Christopher John Ellison;Manish K. Mundra;John M. Torkelson

  • Polymer−Graphite Nanocomposites: Effective Dispersion and Major Property Enhancement via Solid-State Shear Pulverization

    Katsuyuki Wakabayashi;Cynthia Pierre;Dmitriy A. Dikin;Rodney S. Ruoff

  • Vitrimers Designed Both To Strongly Suppress Creep and To Recover Original Cross-Link Density after Reprocessing: Quantitative Theory and Experiments

    Lingqiao Li;Xi Chen;Kailong Jin;John M. Torkelson

  • Eliminating the Enhanced Mobility at the Free Surface of Polystyrene: Fluorescence Studies of the Glass Transition Temperature in Thin Bilayer Films of Immiscible Polymers

    Connie B. Roth;Katie L. McNerny;Wolter F. Jager;John M. Torkelson

  • Reprocessable polyhydroxyurethane networks exhibiting full property recovery and concurrent associative and dissociative dynamic chemistry: Via transcarbamoylation and reversible cyclic carbonate aminolysis

    Xi Chen;Lingqiao Li;Kailong Jin;John M. Torkelson

  • Confinement and processing effects on glass transition temperature and physical aging in ultrathin polymer films: novel fluorescence measurements.

    C.J. Ellison;S.D. Kim;D.B. Hall;J.M. Torkelson

  • Uniquely Broad Glass Transition Temperatures of Gradient Copolymers Relative to Random and Block Copolymers Containing Repulsive Comonomers

    Jungki Kim;Michelle M. Mok;Robert W. Sandoval;Dong Jin Woo;Dong Jin Woo

  • Orientation and second-harmonic generation in doped polystyrene and poly(methyl methacrylate) films

    Hilary L. Hampsch;Jian Yang;George K. Wong;John M. Torkelson

  • Photocurable bioresorbable adhesives as functional interfaces between flexible bioelectronic devices and soft biological tissues.

    Quansan Yang;Tong Wei;Rose T. Yin;Mingzheng Wu

  • Rotational reorientation dynamics of disperse red 1 in polystyrene: α ‐relaxation dynamics probed by second harmonic generation and dielectric relaxation

    Ali Dhinojwala;George K. Wong;John M. Torkelson

  • Dopant Orientation Dynamics in Doped Second-Order Nonlinear Optical Amorphous Polymers. 1. Effects of Temperature Above and Below Tg in Corona-Poled Films

    Hilary L. Hampsch;Jian Yang;George K. Wong;John M. Torkelson

  • Reprocessable Polymer Networks via Thiourethane Dynamic Chemistry: Recovery of Cross-link Density after Recycling and Proof-of-Principle Solvolysis Leading to Monomer Recovery

    Lingqiao Li;Xi Chen;John M. Torkelson

  • Sensing the glass transition in thin and ultrathin polymer films via fluorescence probes and labels

    Christopher John Ellison;John M. Torkelson

  • Dramatic reduction of the effect of nanoconfinement on the glass transition of polymer films via addition of small-molecule diluent

    Christopher John Ellison;Robert L. Ruszkowski;Nathaniel J. Fredin;John M. Torkelson

  • The roles of phase separation mechanism and coarsening in the formation of poly(methyl methacrylate) asymmetric membranes

    Fu Jya Tsai;John M. Torkelson

Frequent Co-Authors

Christopher J. Ellison
Christopher J. Ellison University of Minnesota
Rodney D. Priestley
Rodney D. Priestley Princeton University
SonBinh T. Nguyen
SonBinh T. Nguyen Northwestern University
Linda J. Broadbelt
Linda J. Broadbelt Northwestern University
Ali Dhinojwala
Ali Dhinojwala University of Akron
Karl A. Scheidt
Karl A. Scheidt Northwestern University
L. Catherine Brinson
L. Catherine Brinson Duke University
George K. Wong
George K. Wong Hong Kong University of Science and Technology
Kenneth R. Shull
Kenneth R. Shull Northwestern University
Matthew Tirrell
Matthew Tirrell University of Chicago

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