Hypercrosslinked polystyrenes, synthesized by reaction of linear or lightly crosslinked polystyrene with chloromethyl methyl ether (CME) and a Lewis acid in a good solvent, swell even in nonsolvents for polystyrene. Structures and dynamics of hypercrosslinked polystyrenes in both dry solid and solve
13C solid-state NMR analysis of the DGEBA/TETA epoxy system
✍ Scribed by Maria Inês B. Tavares; J. R. M. D'almeida; S. N. Monteiro
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 131 KB
- Volume
- 78
- Category
- Article
- ISSN
- 0021-8995
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High-resolution 13 C NMR spectra of ˛,ω-bis[(4,4 0 -cyanobiphenylyl)oxy]alkanes (CBA-n, n D 7, 9 and 10) were measured in chloroform solution and in the polycrystalline state. The spectra of the samples in solution are essentially the same; in the polycrystalline state, on the other hand, the spectr