## Abstract A series of three biocompatible P(CL‐__co__‐LA)‐PEG‐P(CL‐__co__‐LA) copolymers were synthesized using ring‐opening polymerization and characterized by ^1^H‐NMR, gel permeation chromatography, DSC, dynamic‐mechanical analysis, and X‐ray diffraction. The number of monomer units was kept c
Tri-component diblock copolymers of poly(ethylene glycol)–poly(ε-caprolactone-co-lactide): synthesis, characterization and loading camptothecin
✍ Scribed by Yan Zhang; Changchun Wang; Wuli Yang; Bin Shi; Shoukuan Fu
- Publisher
- Springer
- Year
- 2005
- Weight
- 324 KB
- Volume
- 283
- Category
- Article
- ISSN
- 0340-255X
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## Abstract **Summary:** Star‐shaped hydroxy‐terminated poly(__ε__‐caprolactone)s (__ss__PCL), with arms of different lengths, were obtained by ring‐opening polymerization (ROP) of __ε__‐caprolactone initiated by pentaerythritol, and were condensed with __α__‐methyl‐__ω__‐(3‐carboxypropionyloxy)‐po
## Abstract Biodegradable copolymers were prepared by ring‐opening polymerization of sequentially added __ε__‐caprolactone and DL‐lactide in the presence of ethylene glycol or poly(ethylene glycol), using zinc metal as catalyst. Polymerization was performed in bulk and yielded block copolymers with