Papers by Boudewijn Scholtens
Approximative Methods for the Evaluation of Equilibrium Moduli of Relaxing Rubber Networks
ACS Symposium Series, 1982
Journal of Polymer Science: Polymer Physics Edition, 1985
The Reference section was omitted from the paper whose title is listed above (J. Polym. Sci., Phy... more The Reference section was omitted from the paper whose title is listed above (J. Polym. Sci., Phys. Ed., 23, 2043 (1985). The complete Reference section is as follows.
Microgel in EPM and EPDM. A comparative study of GPC‐LALLS and viscoelastic measurements
Die Makromolekulare Chemie, 1981
Intrinsically gel-free, randomly branched polyamide
The retardation of Mass Transfer in a Modified Lewis cell by Interfacially Active Polymers
The retardation of mass transfer in a modified lewis cell by interfacially active copolymers
Crystallization in stretched and unstretched EPDM elastomers
ABSTRACT
Advances in Elastomers and Rubber Elasticity, 1986
Thermoviscoelastic behaviour of EPDM elastomers in chemical and physical networks
British Polymer Journal, 1985
ABSTRACT
Nonlinear Viscoelasticity of EPDM Networks
Integration of Fundamental Polymer Science and Technology, 1986
Theoretical treatment of network formation by a multistage process
Polymer Bulletin, 1987
ABSTRACT
Negative Ames-test of cis-di(thiocyanato)-N,N'-bis(4,4'-dicarboxy-2,2'-bipyridine)Ru(II), the sensitizer dye of the nanocrystalline TiO2 solar cell
Solar Energy Materials and Solar Cells, 2000
Dye-sensitized nanocrystalline TiO2 solar cells are currently under development. Since these cell... more Dye-sensitized nanocrystalline TiO2 solar cells are currently under development. Since these cells contain an electrolyte solution we reviewed the health and safety aspects in view of indoor applications, where personal contact cannot be excluded. Only small amounts of chemicals are present in each cell and so there is no danger of acute toxicity. However, long-term effects often can be caused
The Effect of Variations in Chain Connectivity on Strain-Induced Crystallization in Unvulcanized EPDM Elastomers
Rubber Chemistry and Technology, 1984
![Research paper thumbnail of Solid State Solubility of Miconazole in Poly[(ethylene glycol)- g -vinyl alcohol] Using Hot-Melt Extrusion](https://attachments.academia-assets.com/44527657/thumbnails/1.jpg)
Molecular Pharmaceutics, 2012
The use of hot-melt extrusion for preparing homogeneous API-excipient mixtures is studied for mic... more The use of hot-melt extrusion for preparing homogeneous API-excipient mixtures is studied for miconazole-PEG-g-PVA [poly(ethylene glycol) − poly(vinyl alcohol) graft copolymer] solid dispersions with a 5 cm 3 table-top, twinscrew corotating microcompounder (DSM Xplore). Phase behavior of PEG-g-PVA, miscibility of miconazole in PEG-g-PVA and the partitioning of miconazole between PEG and PVA amorphous phases are characterized using a combination of modulated DSC, XRPD, and solid-state 1 H and 13 C NMR methods. The 1 H NMR transverse magnetization relaxation (T 2 relaxation) method is used to analyze the phase composition and molecular mobility of the copolymer. The T 2 relaxation decay of pure PEG-g-PVA can be described by four T 2 relaxation components in the temperature range studied. PVA crystallinity is not largely affected by hot-melt extrusion and the presence of the drug. Miconazole preferably resides in the PEG amorphous phase, and its molecules are well dispersed in the PEG-g-PVA matrix using hot-melt extrusion mixing. Miconazole forms amorphous nanoclusters whose average size equals approximately 1.6 nm, indicating solid solution formation (molecular level dispersion) of the drug in the polymer.
Journal of Rheology, 1986
An experimental study has been carried out to specify the nonlinear viscoelastic behavior of nonc... more An experimental study has been carried out to specify the nonlinear viscoelastic behavior of noncrystalline peroxide-cured EPDM networks covering a range in elongation ratios between one and seven. Stress-strain curves, measured at constant rates of elongation at 300, 345, and 390 K, are analyzed with two recently published methods. Time and strain effects are shown to be separable. The nonlinear strain measure, determined at various stretching rates, is studied as a function of temperature, cross-link density, and prepolymer type. These results are compared with the strain measures of two phenomenological theories, namely with the Mooney-Rivlin equation and a constitutive equation which contains the nonlinear n measure of strain, and with the predictions of the molecular theory of elasticity of polymer networks developed by Flory.
Nonlinear Viscoelastic Analysis of Uniaxial Stress-Strain Measurements of Elastomers at Constant Stretching Rates
Journal of Rheology, 1986
ABSTRACT
The influence of molecular architecture on the surface activity of vinyl alcohol-acetate copolymers
Journal of Colloid and Interface Science, 1980
ABSTRACT
Model esterification of neopentyl glycol and trimethylol propane with 1,4-tert-butyl benzoic acid
Journal of Applied Polymer Science, 1991
Page 1. Model Esterification of Neopentyl Glycol and Trimethylol Propane with 1,4-Tert-Butyl Benz... more Page 1. Model Esterification of Neopentyl Glycol and Trimethylol Propane with 1,4-Tert-Butyl Benzoic Acid JENNIFER 1. McCARTHY and BOUDEWIJN JR SCHOLTENS' DSM Research, PO Box 18,6160 MD Geleen, The Netherlands ...
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Papers by Boudewijn Scholtens