World's Best Scientists 2026 revealed!

D-Index & Metrics

Materials Science

D-Index
66
Citations
13586
World Ranking
5436
National Ranking
59

Chemistry

D-Index
66
Citations
13759
World Ranking
7386
National Ranking
61

Akira Hirao 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 Akira Hirao 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: 361 publications — 72nd percentile

72% of scientists in this discipline score the same or lower.

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

Akira Hirao 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 Akira Hirao 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: 66 D-Index — 59th percentile

59% of scientists in this discipline score the same or lower.

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

Overview

Akira Hirao is affiliated with National Taiwan University in Taiwan and has contributed to research primarily in the fields of Materials Science and Chemistry. Their work is notably concentrated within subfields such as Polymers and Plastics and Organic Chemistry.

The scientist's research covers a range of topics related to polymer science, including:

  • Advanced Polymer Synthesis and Characterization
  • Polymer crystallization and properties
  • Polymer Nanocomposites and Properties
  • Dendrimers and Hyperbranched Polymers
  • Synthesis and properties of polymers

Among the recent papers published by Akira Hirao are:

  • "Molecular weight effect on the structural detail and chain characteristics of 33-armed star polystyrene" (2020, Polymer)
  • "Seventeen-Armed Star Polystyrenes in Various Molecular Weights: Structural Details and Chain Characteristics" (2020, Polymers)

Their research has appeared in journals including Polymer and Polymers.

Collaborations feature several frequent co-authors, indicating active partnerships in their research community. Those regularly working with Hirao include:

  • Jia Chyi Wong
  • Xiang Li
  • Kuan Hoon Ngoi
  • Chin Hua Chia
  • Kyeong Sik Jin

Best Publications

  • Precise syntheses of chain-multi-functionalized polymers, star-branched polymers, star-linear block polymers, densely branched polymers, and dendritic branched polymers based on iterative approach using functionalized 1,1-diphenylethylene derivatives

    Akira Hirao;Mayumi Hayashi;Surapich Loykulnant;Kenji Sugiyama

  • Advances in Living Anionic Polymerization: From Functional Monomers, Polymerization Systems, to Macromolecular Architectures

    Akira Hirao;Akira Hirao;Akira Hirao;Raita Goseki;Takashi Ishizone

  • Recent advance in living anionic polymerization of functionalized styrene derivatives

    Akira Hirao;Surapich Loykulnant;Takashi Ishizone

  • Synthesis of well-defined star-branched polymers by stepwise iterative methodology using living anionic polymerization

    Tomoya Higashihara;Mayumi Hayashi;Akira Hirao

  • Asymmetric reduction of aromatic ketones with chiral alkoxy-amineborane complexes

    Akira Hirao;Shinichi Itsuno;Seiichi Nakahama;Noboru Yamazaki

  • Polymerization of monomers containing functional silyl groups. 5. Synthesis of new porous membranes with functional groups

    Jae Suk Lee;Akira Hirao;Seiichi Nakahama

  • Asymmetric synthesis using chirally modified borohydrides. Part 3. Enantioselective reduction of ketones and oxime ethers with reagents prepared from borane and chiral amino alcohols

    Shinichi Itsuno;Michio Nakano;Koji Miyazaki;Hirofumi Masuda

  • Catalytic Behavior of Optically Active Amino Alcohol–Borane Complex in the Enantioselective Reduction of Acetophenone Oxime O-Alkyl Ethers

    Shinichi Itsuno;Yoshiki Sakurai;Koichi Ito;Akira Hirao

  • Precise synthesis and surface structures of architectural per- and semifluorinated polymers with well-defined structures

    Akira Hirao;Kenji Sugiyama;Hideaki Yokoyama

  • Asymmetric reduction of aromatic ketones with the reagent prepared from (S)-(–)-2-amino-3-methyl-1,1-diphenylbutan-1-ol and borane

    Shinichi Itsuno;Koichi Ito;Akira Hirao;Seiichi Nakahama

  • Polymerization of monomers containing functional groups protected by trialkylsilyl groups. 5. Synthesis of poly(2-hydroxyethyl methacrylate) with a narrow molecular weight distribution by means of anionic living polymerization

    Akira Hirao;Hideshige Kato;Kazuo Yamaguchi;Seiichi Nakahama

  • Asymmetric reduction of aliphatic ketones with the reagent prepared from (S)-(−)-2-amino-3-methyl-1,1-diphenylbutan-1-ol and borane

    Shinichi Itsuno;Koichi Ito;Akira Hirao;Seiichi Nakahama

  • Synthesis of Functionalized Asymmetric Star Polymers Containing Conductive Polyacetylene Segments by Living Anionic Polymerization

    Youliang Zhao;Tomoya Higashihara;Kenji Sugiyama;Akira Hirao

  • Synthesis of polymers with amino end groups. 3. Reactions of anionic living polymers with α-halo-ι-aminoalkanes with a protected amino functionality

    Kenji Ueda;Akira Hirao;Seiichi Nakahama

  • Complex macromolecular architectures : synthesis, characterization, and self-assembly

    Nikos Hadjichristidis;Akira Hirao;Yasuyuki Tezuka;Filip Du Prez

  • Polymerization of monomers containing functional groups protected by trialkylsilyl groups, 4. Studies on anionic living polymerization of 4‐(tert‐butyldimethylsilyloxy)styrene

    Akira Hirao;Katsuhiko Takenaka;S. Packirisamy;Kazuo Yamaguchi

  • Synthesis of Side-Chain Liquid Crystalline Homopolymers and Block Copolymers with Well-Defined Structures by Living Anionic Polymerization and Their Thermotropic Phase Behavior

    Masayuki Yamada;Akira Hirao;Seiichi Nakahama;Tsukasa Iguchi

  • Anionic Synthesis of Well-Defined Poly(m-halomethylstyrene)s and Branched Polymers via Graft-onto Methodology

    Sang Woog Ryu;Akira Hirao

  • Polymerization of monomers containing functional silyl groups. 7. Porous membranes with controlled microstructures

    Jae Suk Lee;Akira Hirao;Seiichi Nakahama

  • Reaction Kinetics of End-Functionalized Chains at a Polystyrene/ Poly(methyl methacrylate) Interface

    Jonathan S. Schulze;Jeffrey J. Cernohous;Akira Hirao;Timothy P. Lodge

  • PROTECTION AND POLYMERIZATION OF FUNCTIONAL MONOMERS: ANIONIC LIVING POLYMERIZATION OF PROTECTED MONOMERS

    Unknown

Frequent Co-Authors

Seiichi Nakahama
Seiichi Nakahama Tokyo Institute of Technology
Takashi Ishizone
Takashi Ishizone Tokyo Institute of Technology
Tomoya Higashihara
Tomoya Higashihara Yamagata University
Shinichi Itsuno
Shinichi Itsuno Toyohashi University of Technology
Wen-Chang Chen
Wen-Chang Chen National Taiwan University
Nikos Hadjichristidis
Nikos Hadjichristidis King Abdullah University of Science and Technology
Toyoji Kakuchi
Toyoji Kakuchi Changchun University of Science and Technology
Moonhor Ree
Moonhor Ree Pohang University of Science and Technology
Junji Watanabe
Junji Watanabe Tokyo Institute of Technology
Christopher W. Macosko
Christopher W. Macosko University of Minnesota

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