Gallium-containing polymer brush film as efficient supported Lewis acid catalyst in a glass microreactor

Autor: Rajesh Munirathinam, Roberto Ricciardi, Richard J. M. Egberink, Jurriaan Huskens, Michael Holtkamp, Herbert Wormeester, Uwe Karst, Willem Verboom

Publikováno v: Beilstein Journal of Organic Chemistry, Vol 9, Iss 1, Pp 1698-1704 (2013)

Polystyrene sulfonate polymer brushes, grown on the interior of the microchannels in a microreactor, have been used for the anchoring of gallium as a Lewis acid catalyst. Initially, gallium-containing polymer brushes were grown on a flat silicon oxid

Externí odkaz: https://doaj.org/article/d3df32f8fdb7438299a644706d569796

Dealing with inaccuracies in the analysis on solvent-induced swelling of transparent thin films using in situ spectroscopic ellipsometry in the visible wavelength range

Autor: Michiel J.T. Raaijmakers, Emiel J. Kappert, Kristianne Tempelman, Herbert Wormeester, Nieck E. Benes

Publikováno v: Surface and Interface Analysis. 49:538-547

The accuracy of spectroscopic ellipsometry studies of transparent polymer films in the visible wavelength range is greatly reduced in the presence of a liquid ambient. The relatively high refractive index of a liquid ambient strongly amplifies the ef

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a1f31e5699bca67359049a1c38eb63e5
https://doi.org/10.1002/sia.6191

The influence of instrumental parameters on the adhesion force in a flat-on-rough contact geometry

Autor: Herbert Wormeester, Harold J.W. Zandvliet, Arzu Çolak, Bene Poelsema

Publikováno v: Applied surface science, 353, 1285-1290. Elsevier

We have used atomic force microscopy (AFM) to measure the snap-off forces between a micron sized flat silicon AFM tip and a rough Si(0 0 1) surface. The current paper is a natural continuation of our previous paper (Çolak et al., 2014), dealing with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53781a5110808d30e44311716e015b49
https://doi.org/10.1016/j.apsusc.2015.07.076

Effective medium approximations for penetrant sorption in glassy polymers accounting for excess free volume

Autor: Matthias Wessling, Nieck E. Benes, Wojciech Ogieglo, Herbert Wormeester

Publikováno v: Polymer, 55(7), 1737-1744. Elsevier

An accurate determination of a penetrant volume fraction in a swollen polymer is of crucial importance in a range of different technologies. Using optical methods, such as in-situ spectroscopic ellipsometry, it is possible to extract the thickness an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d90614fe57925cb13df9f31ec68f05f7
https://doi.org/10.1016/j.polymer.2014.02.040

Gallium-containing polymer brush film as efficient supported Lewis acid catalyst in a glass microreactor

Autor: Michael Holtkamp, Rajesh Munirathinam, Jurriaan Huskens, Uwe Karst, Herbert Wormeester, Willem Verboom, Richard J.M. Egberink, Roberto Ricciardi

Publikováno v: Beilstein Journal of Organic Chemistry
Beilstein journal of organic chemistry, 9, 1698-1704. Beilstein-Institut Zur Forderung der Chemischen Wissenschaften
Beilstein Journal of Organic Chemistry, Vol 9, Iss 1, Pp 1698-1704 (2013)

Polystyrene sulfonate polymer brushes, grown on the interior of the microchannels in a microreactor, have been used for the anchoring of gallium as a Lewis acid catalyst. Initially, gallium-containing polymer brushes were grown on a flat silicon oxid

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d623f04c7ab673efd7a185f07ff290c1
https://doi.org/10.3762/bjoc.9.194