G
Ger Challa
Researcher at University of Groningen
Publications - 133
Citations - 3048
Ger Challa is an academic researcher from University of Groningen. The author has contributed to research in topics: Catalysis & Polymerization. The author has an hindex of 28, co-authored 133 publications receiving 3004 citations.
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Journal ArticleDOI
Influence of tacticity of poly(methyl methacrylate) on the compatibility with poly(vinylidene fluoride)
E. Roerdink,Ger Challa +1 more
TL;DR: In this article, a calorimetric study was carried out on blends of poly(vinylidene fluoride) (PVF 2 ), and isotactic, atactic and syndiotactic poly(methyl methacrylate) (i-, a-, and s-PMMA).
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Grafting kinetics of poly(methyl methacrylate) on microparticulate silica
TL;DR: Grafting of poly(methyl methacrylate) (PMMA) on microparticulate silica was achieved by initiating the polymerization of MMA by 4,4′-azobis(4-cyanopentanoic acid) that was covalently bound to the silica surface.
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A mechanistic study of rhodium tri(o-t-butylphenyl)phosphite complexes as hydroformylation catalysts
TL;DR: In this article, a mechanistic study of the hydroformylation cycle with a rhodium tri(o-t-butylphenyl)phosphite complex as catalyst is presented.
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Complexation of stereoregular poly(methyl methacrylates) .14. the basic structure of the stereocomplex of isotactic and syndiotactic poly(methyl methacrylate)
Elwin Schomaker,Ger Challa +1 more
TL;DR: In this paper, the authors describe a structure in helice bicatenaire based on a motif assymetrique constitue d'une unite isotactique and de 2 unites syndiotactiques.
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Ab Initio Calculations 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
TL;DR: In this article, Hartree−Fock calculations with a 6-31G* basis set were performed on 2,6-dimethylphenol (DMP or monomer) and 4-(2, 6-dimmethylphenoxy)-2,6dimethyl phenol (dimer) to gain more insight into the mechanism of the copper-catalyzed oxidative phenol coupling reaction.