Ger Challa

2.2k total citations · 1 hit paper
50 papers, 1.8k citations indexed

About

Ger Challa is a scholar working on Organic Chemistry, Polymers and Plastics and Oncology. According to data from OpenAlex, Ger Challa has authored 50 papers receiving a total of 1.8k indexed citations (citations by other indexed papers that have themselves been cited), including 34 papers in Organic Chemistry, 11 papers in Polymers and Plastics and 9 papers in Oncology. Recurrent topics in Ger Challa's work include Advanced Polymer Synthesis and Characterization (13 papers), Organometallic Complex Synthesis and Catalysis (9 papers) and Metal complexes synthesis and properties (9 papers). Ger Challa is often cited by papers focused on Advanced Polymer Synthesis and Characterization (13 papers), Organometallic Complex Synthesis and Catalysis (9 papers) and Metal complexes synthesis and properties (9 papers). Ger Challa collaborates with scholars based in Netherlands, Finland and Japan. Ger Challa's co-authors include Dirk J. Broer, Grietje N. Mol, J. Reedijk, W.L. Driessen, R. A. M. Hikmet, Patrick J. Baesjou, A. J. Schouten, Y.Y. Tan, Patrick Gámez and Piet W. N. M. van Leeuwen and has published in prestigious journals such as Journal of the American Chemical Society, Macromolecules and Chemical Communications.

In The Last Decade

Ger Challa

50 papers receiving 1.8k citations

Hit Papers

align trajectories

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.

In‐situ photopolymerization of oriented liquid‐crystalline acrylates, 3. Oriented polymer networks from a mesogenic diacrylate

1989 388 citations Dirk J. Broer, Grietje N. Mol et al. Die Makromolekulare Chemie profile →

Peers

Countries citing papers authored by Ger Challa

Since Specialization

Citations

This map shows the geographic impact of Ger Challa'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 Ger Challa with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ger Challa more than expected).

Fields of papers citing papers by Ger Challa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ger Challa. 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 Ger Challa. The network helps show where Ger Challa may publish in the future.

Co-authorship network of co-authors of Ger Challa

This figure shows the co-authorship network connecting the top 25 collaborators of Ger Challa. A scholar is included among the top collaborators of Ger Challa 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 Ger Challa. Ger Challa 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

#	Work	Indexed citations
1	Selective oxidative para C–C dimerization of 2,6-dimethylphenol 2005 ·Chemical Communications ·Christophe Boldron, Guillem Aromı́, Ger Challa, Patrick Gámez, J. Reedijk	31
2	A spectacular increase in the polymerisation rate of 2,6-dimethylphenol induced by acetonitrile 2001 ·European Polymer Journal ·Patrick Gámez, (unknown), (unknown), W.L. Driessen, Ger Challa, J. Reedijk	37
3	A kinetic study of the copper-catalysed oxidative coupling of 2,6-dimethylphenol. The role of copper, base and phenol concentrations 1998 ·Journal of Molecular Catalysis A Chemical ·Patrick J. Baesjou, W.L. Driessen, Ger Challa, J. Reedijk	33
4	Ab InitioCalculations on 2,6-Dimethylphenol and 4-(2,6-Dimethylphenoxy)-2,6-dimethylphenol. Evidence of an Important Role for the Phenoxonium Cation in the Copper-Catalyzed Oxidative Phenol Coupling Reaction 1997 ·Journal of the American Chemical Society ·Patrick J. Baesjou, W.L. Driessen, Ger Challa, J. Reedijk	85
5	A kinetic and spectroscopic study on the copper catalyzed oxidative coupling polymerization of 2,6-dimethylphenol. X-ray structure of the catalyst precursor tetrakis (N-methylimidazole) bis(nitrato) copper(II) 1996 ·Journal of Molecular Catalysis A Chemical ·Patrick J. Baesjou, W.L. Driessen, Ger Challa, J. Reedijk	48
6	Thermal Isomerization of Azobenzene-Based Acrylic Monomers and (Co)Polymers with Dimethylamino Substituents in Solution, Influence of Addition of (Poly)Acid, Copolymer Composition, Spacer Length, and Solvent Type 1995 ·Macromolecules ·Henk J. Haitjema, Y.Y. Tan, Ger Challa	16
7	One‐step multi‐electron transfer mechanism of polynuclear copper complexes for molecular conversions 1995 ·Polymers for Advanced Technologies ·(unknown), Jennifer C. Wilson, Ger Challa, J. Reedijk	1
8	Polymer chemistry : an introduction 1993 ·Ellis Horwood eBooks ·Ger Challa	38
9	Studies on immobilized polymer-bound imidazole-copper(ii) complexes as catalysts: 1. Oxidative coupling polymerization of 2,6-dimethylphenol catalysed by copper(ii) complexes of poly(styrene-co-N-vinylimidazole) 1990 ·Polymer ·Wei Chen, Ger Challa	13
10	In‐situ photopolymerization of oriented liquid‐crystalline acrylates, 3. Oriented polymer networks from a mesogenic diacrylate breakdown → 1989 ·Die Makromolekulare Chemie ·Dirk J. Broer, (unknown), Grietje N. Mol, Ger Challa	388
11	Complexation of stereoregular poly(methyl methacrylates). 14. The basic structure of the stereocomplex of isotactic and syndiotactic poly(methyl methacrylate) 1989 ·Macromolecules ·(unknown), Ger Challa	121
12	SYNTHESIS OF ISOTACTIC POLY(METHYL METHACRYLATE) COVALENTLY BOUND TO MICROPARTICULATE SILICA 1988 ·University of Groningen research database (University of Groningen / Centre for Information Technology) ·(unknown), (unknown), Ger Challa, M. Čapka	12
13	Complexation of stereoregular poly(methyl methacrylates). 12. Complexation process in dilute solution 1988 ·Macromolecules ·(unknown), (unknown), Ger Challa	23
14	Complexation of stereoregular poly(methyl methacrylates). 13. Influence of chain length on the process of complexation in dilute solution 1988 ·Macromolecules ·(unknown), Ger Challa	20
15	Comments on “The stereoregularity of poly(methyl methacrylate)s formed in the presence of highly syndiotactic poly(methyl methacrylate)s” by K. Matsuzaki, T. Kanai, C. Ichijo, M. Yuzawa 1985 ·Die Makromolekulare Chemie ·Y.Y. Tan, Ger Challa	1
16	A regenerable immobilized nadh model IV: Reduction of pyridine‐2‐carbaldehyde by immobilized 1,4‐dihydronicotinamide in the presence of Mg²⁺ ions 1985 ·Journal of Polymer Science Polymer Chemistry Edition ·Berend Eling, Ger Challa, Upendra K. Pandit	5
17	Polymer‐bound flavins. I. Influence of polarity of the polymer chain on properties of bound flavin 1984 ·Journal of Polymer Science Polymer Chemistry Edition ·(unknown), Ger Challa, Franz Müller	19
18	A regenerable immobilized NADH model. Reduction of α,α,α‐trifluoroacetophenone by 1, 4‐dihydronicotinamide anchored to macroreticular polystyrene 1983 ·Journal of Polymer Science Polymer Chemistry Edition ·Berend Eling, Ger Challa, Upendra K. Pandit	10
19	Kinetics of oxidative dimerization of ethynylbenzene catalyzed by copper complexes of 2‐phenylpyridine and a polymeric pyridine derivative 1977 ·Die Makromolekulare Chemie ·(unknown), (unknown), Ger Challa	9
20	The oxidative coupling of 2,6‐xylenol catalyzed by polymeric complexes of copper, 2. Physicochemical study on copper(II) complexes of partially dimethylamino‐methylated polystyrene 1977 ·Die Makromolekulare Chemie ·A. J. Schouten, (unknown), (unknown), Ger Challa	9

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