| Autor: |
Patrito, Natasha, McCague, Claire, Chiang, Swanda, R. Norton, Peter, O. Petersen, Nils |
| Zdroj: |
Langmuir; April 2006, Vol. 22 Issue: 8 p3453-3455, 3p |
| Abstrakt: |
Patterned surface modification of poly(dimethylsiloxane) (PDMS) is achieved by combining ultraviolet-initiated graft polymerization (UV-GP) and photolithography. Poly(acrylic acid) (PAA) and poly(methacrylic acid) (PMAA) patterns were grafted onto PDMS with micrometer-scale feature edge resolution. The morphology and chemical composition of the grafted layers were assessed by optical and atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), and XPS imaging. AFM section analyses demonstrated the deposition of 33 ± 1 and 62 ± 8 nm thick patterned films of PAA and PMAA, respectively. Spatially resolved C 1s XPS provided images of carboxylic acid functionalities, verifying the patterned deposition of acrylate films on PDMS. These observations demonstrate the general usefulness of UV-GP and photolithography for micropatterning. |
| Databáze: |
Supplemental Index |
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