Sulfonation studies of copolymers, graft copolymers, and polymeric gels using phase transfer catalysts
✍ Scribed by Swaraj Paul; Bengt Rånby
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- English
- Weight
- 326 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0021-8995
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Polyisobutylene and ethylene-propylene copolymers were grafted with maleic anhydride following reaction with polyamine. The molecular motion of these modified samples were studied by NMR and DSC methods. Comparisons of NMR and DSC results for the grafted and ungrafted samples revealed that the polar
## Abstract Saturation transfer in cross‐linked copolymer gels and excised intact and perforating trauma‐induced cataract mouse lenses (4‐ or 8‐week‐old) were studied using intermolecular cross‐relaxation rates (1/__T__~IS~(H~2~O); 1/__T__~IS~), monitored with __f__~2~‐irradiation at −8.79, −4.00,