Syntheses of random and block copolymers of lactides with 1,5-dioxepan-2-one and their biodegradability
β Scribed by Yasuyoshi Watanabe; Hiroyuki Shirahama; Hajime Yasuda
- Book ID
- 108257315
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 298 KB
- Volume
- 59
- Category
- Article
- ISSN
- 1381-5148
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π SIMILAR VOLUMES
Novel elastomeric A-B-A triblock copolymers were successfully synthesized in a new two-step process: controlled ring-opening polymerization of the cyclic etherester 1,5-dioxepan-2-one as the amorphous middle block (B-block) followed by addition and polymerization of the two semicrystalline L-lactide
The degradation of two series of copolymers made of 1,5-dioxepan-2-one (DXO) and Lor D,L-dilactide has been investigated. In uitro degradation of the six copolymers with different ratios of the ingoing components was followed using size exlusion chromatography ( SEC) , nuclear magnetic resonance (NM