✦ LIBER ✦

Catalytic properties of novel chiral polyoxomolybdate(VI) salts: The ring-opening metathesis polymerization (ROMP) of norbornene

✍ Scribed by Malachy McCann; Andrew J. Beaumont

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 584 KB
Volume: 108
Category: Article
ISSN: 1381-1169
DOI: 10.1016/1381-1169(95)00286-3

No coin nor oath required. For personal study only.

✦ Synopsis

Each of the chiral polyoxomolybdate(VI1 salts (R,N 0,02&R jN>,] and (Na),(R ,N )2[Mo,0,,] (R,N = (-I-)cinchonine, t +)-hydroquinidine or (-kquinine).

in the presence of the cocatalyst EtAICl,, catalyses the ring-opening metathesis polymerization of norbomene at room temperature. Thr, polynorbomene produced in these reactions was found to be mostly insoluble. Inclusion of a chain transfer agent, I-hexene, in the reactions leads to greatly improved yields of polynorbomene which is freely soluble in chloroform, and the quantity of polymer formed is highly sensitive to the amount of I -hexene added.

📜 SIMILAR VOLUMES

Single crystals of isopolyoxometallate(V

Single crystals of isopolyoxometallate(VI) salts as catalysts for the ring-opening polymerization of norbornene

✍ Malachy McCann; Deirdre McDonnell; Brian L. Goodall 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 335 KB

Effect of Surfactant and Various Salts o

Effect of Surfactant and Various Salts on Aqueous Solution Properties of Naphthalene-Labeled Poly(hydrochloride-quaternized 2-norbornene-5-methylamine) made by Ring-Opening Metathesis Polymerization (ROMP)

✍ Der-Jang Liaw; Ching-Cheng Huang; Pi-Ling Wu 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 193 KB 👁 1 views

Ring-Opening Metathesis Polymerization o

Ring-Opening Metathesis Polymerization of Amino Acid-Functionalized Norbornene Diamide Monomers: Polymerization Behavior and Chiral Recognition Ability of the Polymers

✍ Sutthira Sutthasupa; Fumio Sanda; Toshio Masuda 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 179 KB

## Abstract Amino acid‐derived novel norbornene monomers were synthesized and polymerized with ruthenium catalysts. The polymerization rates were affected by the stereo structure of the monomers; __exo,exo__‐NBL underwent ROMP faster to give the polymers in higher yields than the __endo,exo__‐count

Effect of Cocatalysts on the Catalytic A

Effect of Cocatalysts on the Catalytic Activities of Tantalum- and Niobium-Based Catalysts for Ring-Opening Metathesis Polymerization of Norbornene

✍ Yuushou Nakayama; Masaya Tanimoto; Takeshi Shiono 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 128 KB

## Abstract A series of pentavalent tantalum and niobium complexes with aryloxy ligands was prepared, and their catalytic behavior for the ROMP of norbornene was studied in the presence of an alkylaluminum cocatalyst. Tantalum complexes **1**–**4** showed very high activity for the ROMP of NBE in c

Novel Ruthenium(II) N-Heterocyclic Carbe

Novel Ruthenium(II) N-Heterocyclic Carbene Complexes as Catalyst Precursors for the Ring-Opening Metathesis Polymerization (ROMP) of Enantiomerically Pure Monomers: X-ray Structures, Reactivity, and Quantum Chemical Considerations

✍ Michael R. Buchmeiser; Dongren Wang; Yan Zhang; Sergej Naumov; Klaus Wurst 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 287 KB 👁 1 views