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M. Van Duin

Delft University of Technology

Publication

Featured researches published by M. Van Duin.

Tetrahedron | 1984

Studies on borate esters 1 : The ph dependence of the stability of esters of boric acid and borate in aqueous medium as studied by 11B NMR

M. Van Duin; Joop A. Peters; A. P. G. Kieboom; H. van Bekkum

The pH dependent stability of esters of boric acid and borate with glycol, glycolic acid, oxalic acid and glyceric acid as dihydroxy compounds has been studied. 11B NMR provides a suitable analytical tool for the quantitative determination and structure elucidation of the various esters in aqueous medium. The pH dependent stability of esters of boric acid and borate is formulated in a general rule of thumb: esters of boric acid and borate with dihydroxy compounds in aqueous medium show the highest stability at that pH where the sum of the charges of the free esterifying species is equal to the charge of the ester.

Tetrahedron | 1985

Studies on borate esters II: Structure and stability of borate esters of polyhydroxycarboxylates and related polyols in aqueous alkaline media as studied by 11B NMR

M. Van Duin; Joop A. Peters; A. P. G. Kieboom; H. van Bekkum

11B NMR data are presented for borate esters of a series of polyols and polyhydroxycarboxylates in aqueous alkaline solution. For each compound the prevailing borate mono- and diesters were identified. 11B chemical shifts and line widths together with the corresponding association constants have been determined. Empirical rules are put forward for predicting the 11B chemical shift, the relative stability and the structure of borate esters in aqueous media.

Coastal Engineering | 2004

Nourishing the shoreface: observations and hindcasting of the Egmond case, The Netherlands

M. Van Duin; N.R. Wiersma; D.J.R. Walstra; L.C. van Rijn; M.J.F. Stive

Recueil des Travaux Chimiques des Pays-Bas | 2010

A general coordination‐ionization scheme for polyhydroxy carboxylic acids in water

M. Van Duin; Joop A. Peters; A. P. G. Kieboom; H. van Bekkum

Recueil des Travaux Chimiques des Pays-Bas | 1986

Studies on borate esters IV. Structural analysis of borate esters of polyhydroxycarboxylates in water using 13C and 1H NMR spectroscopys

M. Van Duin; Joop A. Peters; A. P. G. Kieboom; H. van Bekkum

Magnetic Resonance in Chemistry | 1986

1H NMR spectra of carbohydrate‐derived polyhydroxycarboxylates

M. Van Duin; Joop A. Peters; A. P. G. Kieboom; H. van Bekkum

Tenside detergents | 1984

Cation exchange in the system Ca(II) or Mg(II)/complexing agent/zeolite NaA: equilibria and kinetics

M. S. Nieuwenhuizen; A. H. E. F. Ebaid; M. Van Duin; A. P. G. Kieboom; H. van Bekkum

Recueil des Travaux Chimiques des Pays-Bas | 2010

Studies on Borate Esters, Part VII Borate esters of some 1,3-diones†

M. Van Duin; Joop A. Peters; A. Sinnema; A. P. G. Kieboom; H. van Bekkum

Recueil des Travaux Chimiques des Pays-Bas | 2010

Empirical force field calculations. Part 28. Conformations and pseudorotations of 1,3-dioxolane and some methyl-substituted derivatives†

M. Van Duin; M. A. Hoefnagel; J. M. A. Baas; B. van de Graaf

ChemInform | 1988

Borate Esters. Part 7. Borate Esters of Some 1,3-Diones.

M. Van Duin; Joop A. Peters; A. Sinnema; A. P. G. Kieboom; H. van Bekkum

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