Synthesis and characterization of poly(ε-caprolactone)-poly(L-lactide) diblock copolymers with an organic amino calcium catalyst

Longhai Piao; Jingru Sun; Zhiyuan Zhong; Qizhi Liang; Xuesi Chen; Jung Hyun Kim; Xiabin Jing

doi:10.1002/app.24058

Synthesis and characterization of poly(ε-caprolactone)-poly(L-lactide) diblock copolymers with an organic amino calcium catalyst

Longhai Piao, Jingru Sun, Zhiyuan Zhong, Qizhi Liang, Xuesi Chen, Jung Hyun Kim, Xiabin Jing

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

The quasiliving characteristics of the ring-opening polymerization of s-caprolactone (CL) catalyzed by an organic amino calcium were demonstrated. Taking advantage of this feature, we synthesized a series of poly (ε-caprolactone) (PCL)-poly(L-lactide) (PLA) diblock copolymers with the sequential addition of the monomers CL and L-lactide. The block structure was confirmed by ¹H-NMR, ¹³C-NMR, and gel permeation chromatography analysis. The crystalline structure of the copolymers was investigated by differential scanning calorimetry and wide-angle X-ray diffraction analysis. When the molecular weight of the PLA block was high enough, phase separation took place in the block copolymer to form PCL and PLA domains, respectively.

Original language	English
Pages (from-to)	2654-2660
Number of pages	7
Journal	Journal of Applied Polymer Science
Volume	102
Issue number	3
DOIs	https://doi.org/10.1002/app.24058
Publication status	Published - 2006 Nov 5

All Science Journal Classification (ASJC) codes

Chemistry(all)
Surfaces, Coatings and Films
Polymers and Plastics
Materials Chemistry

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10.1002/app.24058

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abstract = "The quasiliving characteristics of the ring-opening polymerization of s-caprolactone (CL) catalyzed by an organic amino calcium were demonstrated. Taking advantage of this feature, we synthesized a series of poly (ε-caprolactone) (PCL)-poly(L-lactide) (PLA) diblock copolymers with the sequential addition of the monomers CL and L-lactide. The block structure was confirmed by 1H-NMR, 13C-NMR, and gel permeation chromatography analysis. The crystalline structure of the copolymers was investigated by differential scanning calorimetry and wide-angle X-ray diffraction analysis. When the molecular weight of the PLA block was high enough, phase separation took place in the block copolymer to form PCL and PLA domains, respectively.",

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AU - Piao, Longhai

AU - Sun, Jingru

AU - Zhong, Zhiyuan

AU - Liang, Qizhi

AU - Chen, Xuesi

AU - Kim, Jung Hyun

AU - Jing, Xiabin

PY - 2006/11/5

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Synthesis and characterization of poly(ε-caprolactone)-poly(L-lactide) diblock copolymers with an organic amino calcium catalyst

Abstract

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