Enantiomerically pure (1) and rucemic (2) methyl-N-( 1-phenylethyl)-2-azabicycld2.2.1 lhept-5-ene-3-carboxylate were found to undergo ring opening metathesis polymerization reactions employing molybdenum alkylidene initiators of the type Mo(CH-t-Bu)(NArXOR), (Ar = 2,6-C,Ha-i-Pr2; R = C(CH,),; C(CH,)
Synthesis and characterization of new diblock copolymers of 5-(N-carbazolyl methyl)bicyclo[2.2.1]hept-2-ene and 1,5-cyclooctadiene using ring opening metathesis polymerization (ROMP)
β Scribed by Der-Jang Liaw; Pi-Ling Wu
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 167 KB
- Volume
- 160
- Category
- Article
- ISSN
- 1381-1169
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π SIMILAR VOLUMES
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
## Abstract The title monomers 1 and 2 were polymerized by Ruβ, Irβ, Moβ, Wβ and Reβbased metathesis catalysts to yield polymers with __cis__ contents ranging from 10% to at least 90% for 1 and 23β60% for 2. Assignments of the ^13^C NMR spectra were made. No significant headβtail bias was observed