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Swelling Behavior of Thin, Surface-Attached Polymer Networks
Abstract
The swelling behavior of thin, surface-attached cross-linked dimethylacrylamide (DMAAm) films in contact with water has been characterized with multiple-angle nulling ellipsometry and compared to the swelling of nonattached, bulk DMAAm networks. The polymer networks are fabricated by cross-linking thin films of statistical copolymers composed of DMAAm and a photoreactive benzophenone derivative monomer. Covalent attachment of the film to the surface is achieved by means of a benzophenone-based silane monolayer. UV illumination simultaneously cross-links and chemically links the layer and chemically links the layer to the surface, forming stable networks that do not delaminate upon swelling. It is observed that the surface-attached networks swell less than the nonattached, bulk networks at the same cross-link density; however, the swelling of surface-attached networks is larger than that suggested by simple geometric considerations for swelling in one dimension. The results are in qualitative agreement with Flory−Rehner theory extended to one-dimensional swelling.
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Cited by
Surface functionalization of biomaterials by radical polymerization
Zhou, T., Zhu, Y., Li, X., Liu, X., Yeung, K. W. K., Wu, S., Wang, X., Cui, Z., Yang, X., & Chu, P. K. (2016) · Progress in Materials Science · doi:10.1016/j.pmatsci.2016.04.005 · Cited by 145
Li, A., Benetti, E. M., Tranchida, D., Clasohm, J. N., Schönherr, H., & Spencer, N. D. (2011) · Macromolecules · doi:10.1021/ma2006443 · Cited by 113
Metadata
- Authors
- Toomey, R., Freidank, D., & Rühe, J.
- Venue
- Macromolecules
- Publisher
- American Chemical Society (ACS)
- Published
- 2004-01-13
- Volume
- 37
- Issue
- 3
- Pages
- 882-887
- ISSN
- 0024-9297 (ISSN-L)
- 1520-5835
- OpenAlex
- W2000385095
- Cited by
- 359
- References
- 0
- FWCI
- 18.72
- Type
- journal article
- Language
- en
- Open access
- closed
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- Toomey, R., Freidank, D., & Rühe, J. (2004). Swelling Behavior of Thin, Surface-Attached Polymer Networks. Macromolecules. https://doi.org/10.1021/ma034737v
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