Synthesis and characterization of poly(ϵ‐caprolactone)–poly(L‐lactide) diblock copolymers with an organic amino calcium catalyst
Abstract
The quasiliving characteristics of the ring‐opening polymerization of ϵ‐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. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 2654–2660, 2006
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A detailed study of the crystallization kinetics and morphology of both blocks, and their dependence with composition in a wide range, has not been reported.
“Although these systems have been previously evaluated 30 -35 and morphological studies have been previously performed by SAXS, 24,27,28 a detailed study of the crystallization kinetics and morphology of both blocks, and their dependence with composition in a wide range has not been reported, as far as we are aware.”
From Crystallization Kinetics and Morphology of Biodegradable Double Crystalline PLLA- <i>b</i> -PCL Diblock Copolymers (2010) · cites this paper as [33]
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References 10 · Cited by 23
- Authors
- Piao, L., Sun, J., Zhong, Z., Liang, Q., Chen, X., Kim, J., & Jing, X.
- Affiliations
- Yonsei University (KR)
- Chinese Academy of Sciences (CN)
- Corresponding author
- Jing, Xiabin
- Venue
- Journal of Applied Polymer Science
- Publisher
- Wiley
- Published
- 2006-08-23
- Volume
- 102
- Issue
- 3
- Pages
- 2654-2660
- ISSN
- 0021-8995 (ISSN-L)
- 1097-4628
- OpenAlex
- W2003953360
- Cited by
- 23
- References
- 10
- Citations by year
- 2024: 1 · 2022: 1 · 2020: 1 · 2019: 1 · 2014: 2 · 2013: 3 · 2012: 2
- FWCI
- 1.65
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Applied Polymer Science (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
- Physical Sciences › Materials Science › Materials Chemistry › Block Copolymer Self-Assembly
- Keywords
- polycaprolactone, poly(L-lactic acid), diblock copolymers, ring-opening polymerization, crystal structure, biodegradable polymers
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