The polymerization of some ethylene oxides by the diethylzinc-water system
✍ Scribed by J. Malcolm Bruce; S.J. Hurst
- Publisher
- Elsevier Science
- Year
- 1966
- Tongue
- English
- Weight
- 282 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0032-3861
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📜 SIMILAR VOLUMES
Styrene oxide (SO) was polymerized with a diethylzinc/␣-pinene oxide (ZnEt 2 /␣-PiO) catalyst system under various conditions. Polystyrene oxide (PSO) thus obtained had a regular head-to-tail and isotactic structure. The number-average molecular weight reached 4.07 ϫ 10 4 , and the molecular weight
The diphenylzinc-water system was used as catalyst for ethylene oxide polymerization in benzene solution at 6ff ~. The system is greatly influenced by the molar ratio of water to diphenylzinc, H20/Ph2Zn, the maximum catalyst activity being found for a ratio of unity. Ph2Zn alone and molar ratios of