Living ring-opening polymerization of cyclic carbonates mediated by bulky titanium bisphenolates
β Scribed by Daisuke Takeuchi; Takuzo Aida; Takeshi Endo
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 113 KB
- Volume
- 201
- Category
- Article
- ISSN
- 1022-1352
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Ring-opening reactions of 1,3-dioxepan-2-one (1) and 1,3-dioxan-2-one (2) with several alcohols were examined. The reactions proceeded without trifluoroacetic acid (TFA) in low conversions, while they proceeded smoothly with TFA to afford the ring-opened adducts and oligomers. Ring-opening polymeriz
A two-component initiator system based on the in situ cleavage of phenyl disulfide by a triarylphosphine has been developed for the ring-opening polymerization of cyclic bisphenol-A (BPA) carbonate oligomers. This development has potential use in composite applications such that the prepolymer can s