World's Best Scientists 2026 revealed!

D-Index & Metrics

Materials Science

D-Index
61
Citations
15369
World Ranking
6700
National Ranking
264

Chemistry

D-Index
61
Citations
15778
World Ranking
9141
National Ranking
514

Norman S. Allen 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 Norman S. Allen 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: 492 publications — 86th percentile

86% of scientists in this discipline score the same or lower.

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

Norman S. Allen 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 Norman S. Allen 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: 61 D-Index — 48th percentile

48% of scientists in this discipline score the same or lower.

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

Overview

Norman S. Allen is affiliated with Manchester Metropolitan University in the United Kingdom. Their primary research field is Materials Science, with a focus on polymers and plastics. The scientist's work spans several subfields, including polymers and plastics, renewable energy, sustainability and the environment, materials chemistry, biomaterials, and organic chemistry.

Norman S. Allen has contributed extensively to the study of polymer properties, degradation, and stabilization. Their notable recent papers include:

  • Perspectives on additives for polymers. 1. Aspects of stabilization (2020, Journal of Vinyl and Additive Technology)
  • Perspectives on yellowing in the degradation of polymer materials: inter-relationship of structure, mechanisms and modes of stabilisation (2022, Polymer Degradation and Stability)
  • Perspectives on additives for polymers. Part 2. Aspects of photostabilization and role of fillers and pigments (2020, Journal of Vinyl and Additive Technology)
  • Research perspectives on the photocatalytic activity of titanium dioxide: Catalytic assessment methods in solution and solid-state in relation to particle surface activity (2021, Polymer Degradation and Stability)
  • High-temperature stabilization of polypropylene using hindered phenol-thioester stabilizer combinations, Part 2: Optimization and efficacy via encapsulation with silicate fillers (2021, Journal of Vinyl and Additive Technology)

The main topics explored in their research cover polymer crystallization and properties, polymer science and PVC, biodegradable polymer synthesis and properties, polymer nanocomposites and properties, fullerene chemistry and applications, titanium dioxide photocatalysis and solar cells, and advanced photocatalysis techniques.

The scientist frequently collaborates with several coauthors, including Michèle Edge, Sajid Hussain, Klaus Keck-Antoine, Eldar Zeynalov, and Christopher M. Liauw.

Norman S. Allen's publications have appeared predominantly in the Journal of Vinyl and Additive Technology, with at least ten papers. Other common venues for publication include the SSRN Electronic Journal, Polymer Degradation and Stability, Tetrahedron, and the Azerbaijan Chemical Journal.

Best Publications

  • Degradation and stabilisation of polymers and coatings: nano versus pigmentary titania particles

    Norman S. Allen;Michele Edge;Amaya Ortega;Gonzalo Sandoval

  • Free radical macrophotoinitiators: an overview on recent advances

    T. Corrales;F. Catalina;C. Peinado;N.S. Allen

  • Photoinitiators for UV and visible curing of coatings: Mechanisms and properties

    Norman S. Allen

  • Photochemistry of man-made polymers

    John F. McKellar;Norman S. Allen

  • The effect of crystalline phase (anatase, brookite and rutile) and size on the photocatalytic activity of calcined polymorphic titanium dioxide (TiO2)

    Norman S. Allen;Noredine Mahdjoub;Vladimir Vishnyakov;Peter J. Kelly

  • Inactivation of Escherichia coli on immobilized TiO2 using fluorescent light

    L. Caballero;K.A. Whitehead;N.S. Allen;J. Verran

  • Behaviour of nanoparticle (ultrafine) titanium dioxide pigments and stabilisers on the photooxidative stability of water based acrylic and isocyanate based acrylic coatings

    Norman S Allen;Michele Edge;Amaya Ortega;Christopher M Liauw

  • PHOTOCATALYTIC TITANIA BASED SURFACES: ENVIRONMENTAL BENEFITS

    Norman S. Allen;Michele Edge;Joanna Verran;John Stratton

  • Design of eutectic photoinitiator blends for UV/visible curable acrylated printing inks and coatings

    Juan Segurola;Norman S Allen;Michele Edge;Adam Mc Mahon

  • Aspects of the thermal oxidation of ethylene vinyl acetate copolymer

    Norman S. Allen;Michele Edge;Miguel Rodriguez;Cristopher M. Liauw

  • Photooxidative and thermal degradation of polyethylenes: interrelationship by chemiluminescence, thermal gravimetric analysis and FTIR data

    T. Corrales;F. Catalina;C. Peinado;N.S. Allen

  • Aspects of the thermal oxidation, yellowing and stabilisation of ethylene vinyl acetate copolymer

    Norman S. Allen;Michele Edge;Miguel Rodriguez;Cristopher M. Liauw

  • Fundamentals of polymer degradation and stabilisation

    Norman S. Allen;Michele Edge

  • Photocatalytic Coatings for Environmental Applications

    Norman S. Allen;Michele Edge;Gonzalo Sandoval;Joanna Verran

  • Aspects of poly(ethylene terephthalate) degradation for archival life and environmental degradation

    M. Edge;M. Hayes;M. Mohammadian;N.S. Allen

  • Physicochemical aspects of the environmental degradation of poly(ethylene terephthalate)

    Norman S. Allen;Michele Edge;Mehrdad Mohammadian;Ken Jones

  • Ageing and stabilisation of filled polymers: an overview

    Norman S. Allen;Michele Edge;Teresa Corrales;Aileen Childs

  • Photochemistry of dyed and pigmented polymers

    Norman S. Allen;John F. McKellar

  • Characterisation of the species responsible for yellowing in melt degraded aromatic polyesters—I: Yellowing of poly(ethylene terephthalate)

    M. Edge;R. Wiles;N.S. Allen;W.A. McDonald

  • Degradation and stabilisation of styrene–ethylene–butadiene–styrene (SEBS) block copolymer

    Norman S Allen;Michele Edge;Arthur Wilkinson;Cristopher M Liauw

  • Photocatalysis: Science and Technology

    Norman S. Allen

  • Polymer photophysics and photochemistry: By Professor J. E. Guillet. Cambridge University Press, Cambridge, 1985. 391 pp. ISBN 0-521-23506-5. Price: £45.00 or $79.50

    Norman S. Allen

Frequent Co-Authors

Glyn O. Phillips
Glyn O. Phillips Hubei University of Technology
Roberto Sastre
Roberto Sastre Spanish National Research Council
Jean-Luc Gardette
Jean-Luc Gardette University of Clermont Auvergne
Peter Kelly
Peter Kelly Manchester Metropolitan University
John M. Warman
John M. Warman Delft University of Technology
Raymond E. March
Raymond E. March Trent University
Fabrice Morlet-Savary
Fabrice Morlet-Savary University of Upper Alsace

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