The DOI matches its Crossref record; 17 of the 17 references it cites were found in a registry or an index.
An efficient solid-state polycondensation method for synthesizing stereocomplexed poly (lactic acid)s with high molecular weight
Abstract
Simultaneous solid‐state polycondensation (SSP) of the powdery prepolymers of poly(L‐lactic acid) (PLLA) and poly(D‐lactic acid) (PDLA) can produce entire stereocomplexed poly(lactic acid)s (sc‐PLA) with high molecular weight and can be an alternative synthetic route to sc‐PLA. Ordinary melt polycondensations of L‐ and D‐lactic acids gave the PLLA and PDLA prepolymers having medium molecular weight which were pulverized for blending in 1:1 ratio. The resultant powder blends were then subjected to SSP at 130–160 °C for 30 h under a reduced pressure of 0.5 Torr. Some of the products thus obtained attained a molecular weight (Mw) as high as 200 kDa, consisting of stereoblock copolymer of PLLA and PDLA. A small amount of the stereocomplex should be formed in the boundaries of the partially melted PLLA and PDLA where the hetero‐chain connection is induced to generate the blocky components. The resultant SSP products showed predominant stereocomplexation after their melt‐processing in the presence of the stereoblock components in spite of containing a small amount of racemic sequences in the homo‐chiral PLLA and PDLA chains. © 2008 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 46: 3714–3722, 2008
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“Fermentation is typically carried out for 3–5 days under low pH (about 5.0) and low oxygen at a temperature of about 40 °C [24].”
From Synthesis and Biological Application of Polylactic Acid (2020) · cites this paper as [24]
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Cites
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Research works printed but not linked: 1
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Poly-lactic acid synthesis for application in biomedical devices — A review
Lasprilla, A. J. R., Martinez, G. A. R., Lunelli, B. H., Jardini, A. L., & Filho, R. M. (2012) · Biotechnology Advances · doi:10.1016/j.biotechadv.2011.06.019 · Cited by 1,174
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Singhvi, M. S., Zinjarde, S. S., & Gokhale, D. V. (2019) · Journal of Applied Microbiology · doi:10.1111/jam.14290 · Cited by 883
From Lactic Acid to Poly(lactic acid) (PLA): Characterization and Analysis of PLA and Its Precursors
Inkinen, S., Hakkarainen, M., Albertsson, A.-C., & Södergård, A. (2011) · Biomacromolecules · doi:10.1021/bm101302t · Cited by 710
Balla, E. D., Daniilidis, V., Karlioti, G., Kalamas, T., Stefanidou, M., Bikiaris, N. D., Vlachopoulos, A., Koumentakou, I., & Bikiaris, D. Ν. (2021) · Polymers · doi:10.3390/polym13111822 · Cited by 697
Polylactic acid blends: The future of green, light and tough
Hamad, K., Kaseem, M., Ayyoob, M., Joo, J., & Deri, F. (2018) · Progress in Polymer Science · doi:10.1016/j.progpolymsci.2018.07.001 · Cited by 640
Metadata
- Authors
- Fukushima, K., & Kimura, Y.
- Affiliations
- IBM (United States) (US)
- Kyoto Institute of Technology (JP)
- Corresponding author
- Kimura, Yoshiharu
- Venue
- Journal of Polymer Science Part A: Polymer Chemistry
- Publisher
- Wiley
- Published
- 2008-04-25
- Volume
- 46
- Issue
- 11
- Pages
- 3714-3722
- ISSN
- 0887-624X (ISSN-L)
- 1099-0518
- OpenAlex
- W2135717365
- Cited by
- 120
- References
- 17
- Citations by year
- 2026: 1 · 2025: 2 · 2024: 6 · 2023: 6 · 2022: 11 · 2021: 9 · 2020: 5 · 2019: 4 · 2018: 7 · 2017: 6 · 2016: 14 · 2015: 8 · 2014: 10 · 2013: 7 · 2012: 12
- FWCI
- 1.72
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Polymer Science Part A Polymer Chemistry (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
- solid-state polymerization, poly(L-lactic acid), poly(D-lactide), stereoblock copolymers, high molecular weight, prepolymer, melt polycondensation, biodegradable polymers
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