Synthesis, characterization, effect of architecture on crystallization, and spherulitic growth of poly(L‐lactide)‐b‐poly(ethylene oxide) copolymers with different branch arms
Abstract
Well‐defined poly(L‐lactide)‐b‐poly(ethylene oxide) (PLLA‐b‐PEO) copolymers with different branch arms were synthesized via the controlled ring‐opening polymerization of L‐lactide followed by a coupling reaction with carboxyl‐terminated poly(ethylene oxide) (PEO); these copolymers included both star‐shaped copolymers having four arms (4sPLLA‐b‐PEO) and six arms (6sPLLA‐b‐PEO) and linear analogues having one arm (LPLLA‐b‐PEO) and two arms (2LPLLA‐b‐PEO). The maximal melting point, cold‐crystallization temperature, and degree of crystallinity (Xc) of the poly(L‐lactide) (PLLA) block within PLLA‐b‐PEO decreased as the branch arm number increased, whereas Xc of the PEO block within the copolymers inversely increased. This was mainly attributed to the relatively decreasing arm length ratio of PLLA to PEO, which resulted in various PLLA crystallization effects restricting the PEO block. These results indicated that both the PLLA and PEO blocks within the block copolymers mutually influenced each other, and the crystallization of both the PLLA and PEO blocks within the PLLA‐b‐PEO copolymers could be adjusted through both the branch arm number and the arm length of each block. Moreover, the spherulitic growth rate (G) decreased as the branch arm number increased: G6sPLLA‐b‐PEO < G4sPLLA‐b‐PEO < G2LPLLA‐b‐PEO < GLPLLA‐b‐PEO. © 2006 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 44: 2034–2044, 2006
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
Similar diluent effects on the PLLA block have been observed for miscible PLLA-b-PEO systems with increasing PEO composition.
“However, similar diluent effects on the PLLA block have been also observed for miscible PLLAb -PEO systems with increasing PEO composition. 62 -64”
From Crystallization Kinetics and Morphology of Biodegradable Double Crystalline PLLA- <i>b</i> -PCL Diblock Copolymers (2010) · cites this paper as [64]
Cites
Controlled Ring-Opening Polymerization of Lactide and Glycolide
Dechy-Cabaret, O., Martin-Vaca, B., & Bourissou, D. (2004) · Chemical Reviews · doi:10.1021/cr040002s · Cited by 2,257 · see citing works
Properties of lactic acid based polymers and their correlation with composition
Södergård, A., & Stolt, M. (2002) · Progress in Polymer Science · doi:10.1016/s0079-6700(02)00012-6 · Cited by 1,461 · see citing works
Choi, Y. K., Bae, Y. H., & Kim, S. W. (1998) · Macromolecules · doi:10.1021/ma981069i · Cited by 200 · see citing works
Flagged first, then by citations
Cited by
Sorted by citations
Castillo, R. V., & Müller, A. J. (2009) · Progress in Polymer Science · doi:10.1016/j.progpolymsci.2009.03.002 · Cited by 253 · see citing works
Castillo, R. V., Müller, A. J., Raquez, J.-M., & Dubois, P. (2010) · Macromolecules · doi:10.1021/ma100201g · Cited by 175 · see citing works
Star-shaped and branched polylactides: Synthesis, characterization, and properties
Michalski, A., Brzezinski, M., Lapienis, G., & Biela, T. (2019) · Progress in Polymer Science · doi:10.1016/j.progpolymsci.2018.10.004 · Cited by 158 · see citing works
Liu, M.-J., Chen, S.-C., Yang, K.-K., & Wang, Y.-Z. (2015) · RSC Advances · doi:10.1039/c5ra04742k · Cited by 45 · see citing works
Palacios, J. K., Zhao, J., Hadjichristidis, N., & Müller, A. J. (2017) · Macromolecules · doi:10.1021/acs.macromol.7b02148 · Cited by 41 · see citing works
Sun, L., Shen, L., Zhu, M., Dong, C., & Wei, Y. (2010) · Journal of Polymer Science Part A: Polymer Chemistry · doi:10.1002/pola.24255 · Cited by 40 · see citing works
Self-citationTrilayered morphology of an ABC triple crystalline triblock terpolymer
Palacios, J. K., Tercjak, A., Liu, G., Wang, D., Zhao, J., Hadjichristidis, N., & Müller, A. J. (2017) · Macromolecules · doi:10.1021/acs.macromol.7b01576 · Cited by 37 · see citing works
Palacios, J. K., Mugica, A., Zubitur, M., Iturrospe, A., Arbe, A., Liu, G., Wang, D., Zhao, J., Hadjichristidis, N., & Müller, A. J. (2016) · RSC Advances · doi:10.1039/c5ra25812j · Cited by 23 · see citing works
Palacios, J. K., Mugica, A., Zubitur, M., & Müller, A. J. (2018) · Crystallization in Multiphase Polymer Systems · doi:10.1016/b978-0-12-809453-2.00006-2 · Cited by 18 · see citing works
Palacios, J. K., Liu, G., Wang, D., Hadjichristidis, N., & Müller, A. J. (2019) · Macromolecular Chemistry and Physics · doi:10.1002/macp.201900292 · Cited by 15 · see citing works
Palacios, J. K., Zhang, H., Zhang, B., Hadjichristidis, N., & Müller, A. J. (2020) · Polymer · doi:10.1016/j.polymer.2020.122863 · Cited by 11 · see citing works
- Authors
- Cai, C., Wang, L., & Dong, C.
- Affiliations
- Shanghai Jiao Tong University (CN)
- Corresponding author
- Dong, Chang‐Ming
- Venue
- Journal of Polymer Science Part A: Polymer Chemistry
- Publisher
- Wiley
- Published
- 2006-02-03
- Volume
- 44
- Issue
- 6
- Pages
- 2034-2044
- ISSN
- 0887-624X (ISSN-L)
- 1099-0518
- OpenAlex
- W2161145615
- Cited by
- 56
- References
- 3
- Citations by year
- 2026: 1 · 2025: 1 · 2024: 1 · 2023: 2 · 2021: 3 · 2020: 2 · 2019: 3 · 2018: 1 · 2017: 4 · 2016: 3 · 2015: 3 · 2014: 5 · 2013: 2 · 2012: 4
- FWCI
- 4.48
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Polymer Science Part A Polymer Chemistry (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
- Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
- Physical Sciences › Materials Science › Materials Chemistry › Block Copolymer Self-Assembly
- Keywords
- star block copolymers, block copolymer architecture, crystallization, spherulitic growth rate, cold crystallization, crystallinity, ring-opening polymerization, block copolymer self-assembly
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
