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13C n.m.r. spectra of polymers made by ring-opening polymerization of (±)- and (+)-exo-5-methylbicyclo [2.2.1] hept-2-ene using metathesis catalysts

✍ Scribed by Kenneth J. Ivin; Grzegorz Łapienis; John J. Rooney

Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
593 KB
Volume
21
Category
Article
ISSN
0032-3861

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📜 SIMILAR VOLUMES

Ring-opening metathesis polymerization o
Ring-opening metathesis polymerization of endo- and exo-5-methoxymethylbicyclo[2.2.1]hept-2-ene; microstructure of the polymers
✍ Kenneth J. Ivin; Luk-Mui Lam; John J. Rooney 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 361 KB

## Abstract The title monomers 1 and 2 were polymerized by Ru‐, Ir‐, Mo‐, W‐ and Re‐based metathesis catalysts to yield polymers with __cis__ contents ranging from 10% to at least 90% for 1 and 23–60% for 2. Assignments of the ^13^C NMR spectra were made. No significant head‐tail bias was observed

13C NMR spectra of hydrogenated polymers
13C NMR spectra of hydrogenated polymers of exo-5-methyl-endo-5-methyl-, and 5,5-dimethyl-derivatives of bicyclo[2.2.1]hept-2-ene prepared by ring-opening metathesis polymerization
✍ Andrew G. Carvill; Ruth M. E. Greene; James G. Hamilton; Kenneth J. Ivin; Alan M 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 489 KB

13C NMR spectra of the three title polymers have been determined for polymers of different tacticities. Assignments to the various possible HWHT/TT and m/r dyad structures were made. These were facilitated by the use of optically active monomers in the case of 1 and 3. In the precursor polymers the