The use of ultrasound to initiate ring-opening polymerization
โ Scribed by S. J. Stoessel
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 283 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0021-8995
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Polymerization of 1-caprolactone had been investigated with cyclopentadienyl sodium as an initiator. The effects of reaction time, temperature, and concentration of the initiator on the yield and molecular weight of the polymer were discussed. It was shown that the high molecular weight of poly(1-ca
Structurally characterized, chiral heterobimetallic yttrocene derivatives Li[Y(g 5 : g 1 -C 5 R 4 Si-Me 2 NCH 2 CH 2 OMe) 2 ] (R = Me, H) have been shown to be active in the controlled ring-opening polymerization of L-lactide to give poly(L-lactide)s with high molecular weights and moderately narrow