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On the role of catalyst components in the living metathesis polymerization of substituted acetylenes by MoOCl4-based systems

✍ Scribed by Shigetaka Hayano; Toshio Masuda; Hoyning Ji; Rigoberto C. Advincula


Publisher
Springer
Year
2000
Tongue
English
Weight
180 KB
Volume
44
Category
Article
ISSN
0170-0839

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πŸ“œ SIMILAR VOLUMES


Living metathesis polymerization of subs
✍ Toshio Masuda; Shigetaka Hayano; Eiji Iwawaki; Ryoji Nomura πŸ“‚ Article πŸ“… 1998 πŸ› Elsevier Science 🌐 English βš– 202 KB

## Ε½ . Several organometallic compounds were examined as second catalyst components cocatalysts of the MoOCl -cocata-4 ## Ε½ . lyst -EtOH system with the motivation of development of novel catalysts for the living polymerization of substituted acetylenes. Catalyst systems such as MoOCl -Et Zn-Et

Effects of ortho-substituents on the liv
✍ Tomohiro Mizumoto; Toshio Masuda; Toshinobu Higashimura πŸ“‚ Article πŸ“… 1995 πŸ› John Wiley and Sons 🌐 English βš– 412 KB

Polymerization of phenylacetylenes (PAS) having various ortho-substituents were examined by using MoOCI,-n-Bu,Sn-EtOH (mole ratio 1 : 1 : 1) as catalyst. Phenylacetylenes with no or sterically small ortho-substituents did not polymerize in a living fashion. On the other hand, in the polymerization o

Polymerization of aliphatic disubstitute
✍ Hideki Kubo; Shigetaka Hayano; Toshio Masuda πŸ“‚ Article πŸ“… 2000 πŸ› John Wiley and Sons 🌐 English βš– 119 KB

The polymerization of aliphatic disubstituted acetylenes was examined with MoOCl 4 -n-Bu 4 Sn-EtOH (1/1/2) ternary catalyst in anisole at 0 Β°C. Various linear aliphatic disubstituted acetylenes such as 2-nonyne provided polymers with narrow molecular weight distributions (weight-average molecular we

Living polymerization of aryl substitute
✍ Jay Kunzler; Virgil Percec πŸ“‚ Article πŸ“… 1990 πŸ› John Wiley and Sons 🌐 English βš– 835 KB

## Abstract The polymerization of phenylacetylene initiated by MoCl~5~ and WCl~6~ based initiators was monitored directly in the NMR sample tube and demonstrated the presence of backbiting and intramolecular cyclization reactions. It was shown that the ratio of cis to trans structural units obtaine

Organometallic nickel catalysts anchored
✍ G. Braca; A.M. Raspolli Galletti; M. Di Girolamo; G. Sbrana; R. Silla; P. Ferrar πŸ“‚ Article πŸ“… 1995 πŸ› Elsevier Science 🌐 English βš– 847 KB

Organometallic nickel complexes with bidentate P"0 chelating ligands of ylidic (-C(O)H=PPh,) and phosphino-acetic (-CH( PPh,)-COOH) type heterogenized on polystyrene resins by anchoring through the carbon atom of the ligand have been prepared and used in the polymerization and/or oligomerization of