SYNTHESIS OF POLY(ETHYLENE TEREPHTHALATE)-POLYCAPROLACTONE BLOCK COPOLYMER BY DIRECT COPOLYMERIZATION*

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SYNTHESIS OF POLY(ETHYLENE TEREPHTHALATE)-POLYCAPROLACTONE BLOCK COPOLYMER BY DIRECT COPOLYMERIZATION*

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- SYNTHESIS OF POLY(ETHYLENE TEREPHTHALATE)-POLYCAPROLACTONE BLOCK COPOLYMER BY DIRECT COPOLYMERIZATION*
- Vol. 17, Issue 3, Pages: 231-235(1999)
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- Published：20 June 1999
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SYNTHESIS OF POLY(ETHYLENE TEREPHTHALATE)-POLYCAPROLACTONE BLOCK COPOLYMER BY DIRECT COPOLYMERIZATION*[J]. 1999, 17(3): 231-235.
DOI：

SYNTHESIS OF POLY(ETHYLENE TEREPHTHALATE)-POLYCAPROLACTONE BLOCK COPOLYMER BY DIRECT COPOLYMERIZATION*[J]. 1999, 17(3): 231-235. DOI：

摘要

Poly(ethylene terephthalate) -polycaprolactone block copolymer (PCL- b-PET) is a polyester withimproved biodegradability. In the present paper

a new direct copolymerization method of ε-caprolactone (ε-CL) and bishydroxyethylene terephthalate (BHET) in the presence of Ti(OBu)4 was proposed for thesynthesis of PCL-b-PET. The PCL-b-PET copolymer was characterized by IR

GPC and 1H-NMRtechniques

and the effects of synthesis conditions

such as temperature

reaction time and concentration of catalyst on the copolymerization were discussed.

Abstract

Poly(ethylene terephthalate) -polycaprolactone block copolymer (PCL- b-PET) is a polyester withimproved biodegradability. In the present paper

GPC and 1H-NMRtechniques

and the effects of synthesis conditions

such as temperature

reaction time and concentration of catalyst on the copolymerization were discussed.

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