Journal article
Synthesis and characterization of UV photocrosslinkable hydrogels with poly(N-vinyl-2-pyrrolidone): Determination of the network mesh size distribution
Department of Micro- and Nanotechnology, Technical University of Denmark1
Nanoprobes, Department of Micro- and Nanotechnology, Technical University of Denmark2
University of Trieste3
Biomaterial Microsystems, Department of Micro- and Nanotechnology, Technical University of Denmark4
Department of Chemical and Biochemical Engineering, Technical University of Denmark5
The Danish Polymer Centre, Department of Chemical and Biochemical Engineering, Technical University of Denmark6
National Research Council of Italy7
Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics, Department of Health Technology, Technical University of Denmark8
Hydrogels of poly(n-vinyl-2-pyrrolidone) were produced by UV irradiation of aqueous solutions of the polymer in presence of hydrogen peroxide, used as initiator. The mechanical and the nanostructural properties of the gels were characterized by a combination of experimental techniques including rheology, low field nuclear magnetic resonance spectroscopy (LF-NMR), and small angle X-ray scattering.
Different irradiation doses as well as polymer and initiator concentrations were tested in the characterization. The study elucidates the relationship between different methods to estimate the mesh size of the gel polymeric network. Moreover, a novel correlation model was developed based on Chui and Scherer theories for the interpretation of LF-NMR dataset of polymer solutions and networks.
| Language: | English |
|---|---|
| Publisher: | Informa UK Limited |
| Year: | 2016 |
| Pages: | 516-525 |
| ISSN: | 1563535x and 00914037 |
| Types: | Journal article |
| DOI: | 10.1080/00914037.2015.1129964 |
| ORCIDs: | Keller, Stephan Sylvest , Skov, Anne Ladegaard and Boisen, Anja |
