Characterization of Ultrathin Poly(ethylene glycol) Monolayers on Silicon Substrates Export

@article{papra_peg_01, abstract = {Low molecular weight poly(ethylene glycol) silanes (PEG silanes) have been grafted onto the surface of silicon wafers in a one-step procedure yielding ultrathin and stable PEG monolayers. Structural investigation by means of X-ray reflectivity provided data on the thickness of the PEG monolayers. The layer thickness varied between 10 and 17 \r{A} depending on the PEG silane concentration applied. These results have been confirmed by X-ray photoelectron spectroscopy measurements. Atomic force microscopy data indicate very smooth and homogeneous coverages with roughnesses of less than 3 \r{A}. The PEG layers are hydrophilic as determined with advancing water contact angles between 36 and 39°.}, author = {Papra, Alexander and Gadegaard, Nikolaj and Larsen, Niels B.}, citeulike-article-id = {6073490}, citeulike-linkout-0 = {http://dx.doi.org/10.1021/la000609d}, citeulike-linkout-1 = {http://pubs.acs.org/doi/abs/10.1021/la000609d}, day = {1}, doi = {10.1021/la000609d}, journal = {Langmuir}, keywords = {afm, monolayer, peg, silane, silicon, spectroscopy, surface, toluene, x-ray}, month = {March}, number = {5}, pages = {1457--1460}, posted-at = {2009-11-05 10:36:02}, priority = {2}, title = {Characterization of Ultrathin Poly(ethylene glycol) Monolayers on Silicon Substrates}, url = {http://dx.doi.org/10.1021/la000609d}, volume = {17}, year = {2001} }

TY - JOUR ID - papra_peg_01 L3 - citeulike-article-id:6073490 N2 - Low molecular weight poly(ethylene glycol) silanes (PEG silanes) have been grafted onto the surface of silicon wafers in a one-step procedure yielding ultrathin and stable PEG monolayers. Structural investigation by means of X-ray reflectivity provided data on the thickness of the PEG monolayers. The layer thickness varied between 10 and 17 Å depending on the PEG silane concentration applied. These results have been confirmed by X-ray photoelectron spectroscopy measurements. Atomic force microscopy data indicate very smooth and homogeneous coverages with roughnesses of less than 3 Å. The PEG layers are hydrophilic as determined with advancing water contact angles between 36 and 39°. IS - 5 JF - Langmuir EP - 1460 TI - Characterization of Ultrathin Poly(ethylene glycol) Monolayers on Silicon Substrates VL - 17 SP - 1457 KW - afm KW - monolayer KW - peg KW - silane KW - silicon KW - spectroscopy KW - surface KW - toluene KW - x-ray AU - Papra, Alexander AU - Gadegaard, Nikolaj AU - Larsen, Niels PY - 2001/03/01/ UR - http://dx.doi.org/10.1021/la000609d ER -