Characterization of bifunctional interpenetrating polymer networks via solid-state [sup 13]C NMR spectroscopy
- Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemistry
Bifunctional interpenetrating polymer networks (IPNs) have been synthesized and characterized via [sup 13]C CP/MAS and DP/MAS NMR spectroscopy. The IPNs consist of polystyrene (PS)/poly(4-vinylpyridine), PS/poly(N-vinylimidazole), PS/poly(ethyl acrylate), PS/poly(4-vinylpyridine-co-ethyl acrylate), and PS/poly(N-vinylimidazole-co-ethyl acrylate). Both monomers of the second network are readily sorbed into the polystyrene support and result in well-defined networks. CP/MAS is used to identify the second network which, due to its relatively high rigidity, is transparent to DP/MAS. The acrylate-containing IPNs are subjected to a subsequent reaction, and the resulting polymers are characterized. CP/MAS is able to show that base hydrolysis leads only to ester cleavage without degradation of the networks and that all sites are accessible to the reaction.
- DOE Contract Number:
- FG05-86ER13591
- OSTI ID:
- 6468985
- Journal Information:
- Macromolecules; (United States), Journal Name: Macromolecules; (United States) Vol. 26:13; ISSN MAMOBX; ISSN 0024-9297
- Country of Publication:
- United States
- Language:
- English
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