Tetrabutylammonium benzoate-initiated polymerization of propylene oxide
β Scribed by Xuemin Chen; M. R. Van De Mark
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 375 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
β¦ Synopsis
The polymerization of propylene oxide by the benzoate anion was aided through the use of the tetrabutylammonium counterion. The effect of the tetrabutylammonium ion was to increase the solubility of the salt and to increase the ion separation. The polymerization was carried out in a pressure reactor at temperatures from 40 to 108"C, producing polymer yields of 2-78%. The study addressed the general effects of solvent, temperature, and ratio of initiator to monomer.
π SIMILAR VOLUMES
## Abstract The anionic polymerization of propylene oxide was investigated with potassium __t__βbutoxide as an initiator, and the solvent hexamethyl phosphoric triamide was used in controlling experiments. The relative molar mass limit of the products was determined as about 2700, and the Cο£ΎC doubl
Dirhenium decacarbonyl Re 2 (CO) 10 initiate the polymerization of cyclohexene oxide photochemically at 25 Β°C. The effects of initiator concentration, photolysis time, light intensity, solvents and aromatic photosensitizers on the polymerization yield are presented. Molecular weights of the obtained
Sapporo 060, J a p a n ## Synopsis Polyethylene was mechanochemically produced by milling of alumina powder at room temperature in the presence of ethylene monomer. Nearly 50% of the produced polyethylene was chemically bonded with the matrix of the alumina. The other 50% of the polymer was extra