Citation: Jian Zhong BEI, Xing Zhou HU, Zhen Ming MA, Shen Guo WANG. Photodegradation Behavior of Polycaprolactone-Poly(ethylene glycol) Block Copolymer[J]. Chinese Chemical Letters, ;1999, 10(4): 327-330. shu

Photodegradation Behavior of Polycaprolactone-Poly(ethylene glycol) Block Copolymer

Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080

Received Date: 6 July 1998

Fund Project: The project 59773022 was supported by NSFC.

The biodegradation behavior in vitro and in vivo of polycaprolactone-poly (ethylene glycol) block copolymer (PCE) was reported in detail. In this paper, photodegradation test of PCE was performed by exposure to UV light. The mechanical properties and the inherent viscosity of PCE samples which are subjected to photodegradation were determined. The experimental results indicated that poly (ethylene glycol) (PEO) segment in PCE copolymer is photosensitive. The photodegra-dation rate of the PCE was increased with increasing poly (ethylene glycol) content.
- Photodegradation,
- polycaprolactone-poly(ethylene glycol)
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