Holger Frey

24.1k total citations · 5 hit papers
475 papers, 20.4k citations indexed

About

Holger Frey is a scholar working on Organic Chemistry, Polymers and Plastics and Biomaterials. According to data from OpenAlex, Holger Frey has authored 475 papers receiving a total of 20.4k indexed citations (citations by other indexed papers that have themselves been cited), including 276 papers in Organic Chemistry, 239 papers in Polymers and Plastics and 115 papers in Biomaterials. Recurrent topics in Holger Frey's work include Dendrimers and Hyperbranched Polymers (182 papers), Advanced Polymer Synthesis and Characterization (175 papers) and biodegradable polymer synthesis and properties (97 papers). Holger Frey is often cited by papers focused on Dendrimers and Hyperbranched Polymers (182 papers), Advanced Polymer Synthesis and Characterization (175 papers) and biodegradable polymer synthesis and properties (97 papers). Holger Frey collaborates with scholars based in Germany, Spain and Netherlands. Holger Frey's co-authors include Rolf Mülhaupt, Frederik R. Wurm, Alexander Sunder, Salah‐Eddine Stiriba, Rainer Haag, Ralf Hanselmann, Dirk Hölter, Armin Burgath, Daniel Wilms and Klaus Lorenz and has published in prestigious journals such as Chemical Reviews, Journal of the American Chemical Society and Advanced Materials.

In The Last Decade

Holger Frey

468 papers receiving 20.1k citations

Hit Papers

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What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Dendrimers:

2000 1.0k citations Holger Frey et al. profile →
Controlled Synthesis of Hyperbranched Polyglycerols by Ring-Opening Multibranching Polymerization

1999 932 citations Holger Frey et al. Macromolecules profile →
Degree of branching in hyperbranched polymers

1997 671 citations Holger Frey et al. profile →
Polymerization of Ethylene Oxide, Propylene Oxide, and Other Alkylene Oxides: Synthesis, Novel Polymer Architectures, and Bioconjugation

2015 670 citations Jana Herzberger, Hannah Pohlit et al. profile →
Dendritic Polymers in Biomedical Applications: From Potential to Clinical Use in Diagnostics and Therapy

2002 582 citations Holger Frey et al. Angewandte Chemie International Edition profile →

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author						Papers	Cites
Holger Frey	11.1k	10.1k	5.8k	4.7k	4.4k	475	20.4k
Filip Du Prez	10.8k 1.0×	12.9k 1.3×	2.9k 0.5×	4.7k 1.0×	5.4k 1.2×	403	21.6k
Brent S. Sumerlin	6.6k 0.6×	15.9k 1.6×	3.5k 0.6×	6.4k 1.4×	5.9k 1.4×	264	24.5k
Brigitte Voit	9.9k 0.9×	7.9k 0.8×	4.5k 0.8×	2.9k 0.6×	4.9k 1.1×	642	21.3k
Karen L. Wooley	8.6k 0.8×	16.5k 1.6×	6.8k 1.2×	9.4k 2.0×	7.9k 1.8×	366	29.7k
David M. Haddleton	3.6k 0.3×	16.6k 1.6×	4.7k 0.8×	4.5k 1.0×	4.5k 1.0×	422	22.6k
Jean‐François Lutz	3.4k 0.3×	13.6k 1.3×	6.8k 1.2×	5.1k 1.1×	3.6k 0.8×	208	20.1k
Deyue Yan	12.1k 1.1×	10.1k 1.0×	5.6k 1.0×	7.1k 1.5×	8.0k 1.8×	577	26.2k
Patrick Théato	4.2k 0.4×	7.0k 0.7×	1.7k 0.3×	3.9k 0.8×	5.4k 1.2×	351	16.8k
Graeme Moad	7.1k 0.6×	24.2k 2.4×	2.4k 0.4×	6.3k 1.4×	7.0k 1.6×	241	29.6k
Zhibin Guan	7.2k 0.6×	8.1k 0.8×	1.5k 0.3×	3.3k 0.7×	3.0k 0.7×	141	14.9k

Countries citing papers authored by Holger Frey

Since Specialization

Citations

This map shows the geographic impact of Holger Frey's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Holger Frey with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Holger Frey more than expected).

Fields of papers citing papers by Holger Frey

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Holger Frey. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Holger Frey. The network helps show where Holger Frey may publish in the future.

Co-authorship network of co-authors of Holger Frey

This figure shows the co-authorship network connecting the top 25 collaborators of Holger Frey. A scholar is included among the top collaborators of Holger Frey based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Holger Frey. Holger Frey is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Verbeke, Rhea, et al.. (2025). The pivotal influence of water on the epoxide ring-opening polymerization by tertiary amines. European Polymer Journal. 232. 113950–113950.

Schulz, Detlef, et al.. (2025). Overcoming PEG Antigenicity: Statistical PEG Isomers Reduce Antibody Binding. Advanced Science. 13(7). e21061–e21061.

Schulz, Detlef, Barry W. Neun, Edward Cedrone, et al.. (2025). Isomerization of Poly(ethylene glycol): A Strategy for the Evasion of Anti-PEG Antibody Recognition. Journal of the American Chemical Society. 147(25). 21538–21548. 5 indexed citations

Heinze, Katja, et al.. (2024). Anionic polymerization of phenyl-substituted isoprene derivatives: polymerization behaviour and cyclization-enabled fluorescence. Polymer Chemistry. 15(31). 3204–3213. 1 indexed citations

Frey, Holger, et al.. (2024). Glycidyl ethers from acyclic terpenes: a versatile toolbox for multifunctional poly(ethylene glycol)s with modification opportunities. Polymer Chemistry. 16(3). 374–385. 1 indexed citations

Blankenburg, Jan, et al.. (2023). Revealing the Monomer Gradient of Polyether Copolymers Prepared Using N‐Heterocyclic Olefins: Metal‐Free Anionic versus Zwitterionic Lewis Pair Polymerization. Macromolecular Chemistry and Physics. 224(16). 4 indexed citations

Hartmann, Frank, et al.. (2023). Bifunctional Carbanionic Synthesis of Fully Bio‐Based Triblock Structures Derived from β‐Farnesene and ll‐Dilactide: Thermoplastic Elastomers. Angewandte Chemie International Edition. 62(42). e202310519–e202310519. 15 indexed citations

Wagner, Manfred, et al.. (2023). Anionic Polymerization of the Terpene-Based Diene β-Ocimene: Complex Mechanism Due to Stereoisomer Reactivities. Macromolecules. 56(2). 664–677. 8 indexed citations

Yan, Jiaqi, et al.. (2020). Tapered Multiblock Star Copolymers: Synthesis, Selective Hydrogenation, and Properties. Macromolecules. 53(11). 4422–4434. 23 indexed citations

10.

Xue, Yudong, Xiaogang Li, Jia Tian, et al.. (2020). Water-soluble hyperbranched polyglycerol photosensitizer for enhanced photodynamic therapy. Polymer Chemistry. 11(23). 3913–3921. 7 indexed citations

11.

Mohr, Rebecca, et al.. (2020). The Unique Versatility of the Double Metal Cyanide (DMC) Catalyst: Introducing Siloxane Segments to Polypropylene Oxide by Ring‐Opening Copolymerization. Macromolecular Rapid Communications. 42(5). e2000542–e2000542. 11 indexed citations

12.

Blankenburg, Jan, Matthias Worm, Ronald E. Unger, et al.. (2019). Acid‐Cleavable Poly(ethylene glycol) Hydrogels Displaying Protein Release at pH 5. Chemistry - A European Journal. 26(13). 2947–2953. 7 indexed citations

13.

Wagner, Annika, et al.. (2019). pH-Responsive protein nanoparticlesviaconjugation of degradable PEG to the surface of cytochromec. Polymer Chemistry. 11(2). 551–559. 15 indexed citations

14.

Johann, Tobias, et al.. (2019). Kinetics of Anionic Living Copolymerization of Isoprene and Styrene Using in Situ NIR Spectroscopy: Temperature Effects on Monomer Sequence and Morphology. Macromolecules. 52(23). 9299–9310. 35 indexed citations

15.

Tahir, Muhammad Nawaz, Sergi Plana‐Ruiz, Bastian Barton, et al.. (2018). Iron Oxide Superparticles with Enhanced MRI Performance by Solution Phase Epitaxial Growth. Chemistry of Materials. 30(13). 4277–4288. 11 indexed citations

16.

Frey, Holger, et al.. (2018). Crystalline CO₂‐Based Aliphatic Polycarbonates with Long Alkyl Chains. Macromolecular Rapid Communications. 39(24). e1800558–e1800558. 6 indexed citations

17.

Tahir, Muhammad Nawaz, Ruben Ragg, Karsten Korschelt, et al.. (2016). Pd@Fe₂O₃ Superparticles with Enhanced Peroxidase Activity by Solution Phase Epitaxial Growth. Chemistry of Materials. 29(3). 1134–1146. 55 indexed citations

18.

Ragg, Ruben, Karsten Korschelt, L. Völker, et al.. (2016). Intrinsic superoxide dismutase activity of MnO nanoparticles enhances the magnetic resonance imaging contrast. Journal of Materials Chemistry B. 4(46). 7423–7428. 74 indexed citations

19.

Frey, Holger, et al.. (2014). Aliphatic Polycarbonates Based on Carbon Dioxide, Furfuryl Glycidyl Ether, and Glycidyl Methyl Ether: Reversible Functionalization and Cross‐Linking. Macromolecular Rapid Communications. 36(2). 174–179. 42 indexed citations

20.

Wilms, Daniel, et al.. (2008). Ionic polymerizations in microstructured reactors. 26(2). 32–36. 4 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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