Modeling the pH-dependent PLA oligomer degradation kinetics
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The rate of water diffusion depends on the hydrophobicity of the polymer and its shape or surface area while the intrinsic degradation kinetics is affected by the pH and temperature of the medium as well as the molecular weight and microstructures of the polymer.
“The rate of water diffusion depends on the hydrophobicity of the polymer and its shape or surface area while the intrinsic degradation kinetics is affected by the pH 421 and temperature of the medium 422 as well as the molecular weight 423 and microstructures of the polymer.424”
From Catalysis as an Enabling Science for Sustainable Polymers (2018) · cites this paper as [421]
The degradation of polyesters and polycarbonates is in general much faster under basic conditions than acidic than neutral conditions.
“The degradation of polyesters and polycarbonates is in general much faster under basic conditions than acidic than neutral conditions.421”
From Catalysis as an Enabling Science for Sustainable Polymers (2018) · cites this paper as [421]
At acidic pH the hydrolysis proceeds through a preferential scission of the end groups and spits out one lactic acid unit at a time, while the base catalyzed hydrolysis proceeds preferentially via a backbiting process from the OH chain end leading to the formation of lactide, which is eventually hydrolyzed to lactate.
“While at acidic pH the hydrolysis proceeds through a preferential scission of the end groups and spits out one lactic acid unit at a time, the base catalyzed hydrolysis proceeds preferentially via a backbiting process from the OH chain end leading to the formation of lactide, which is eventually hydrolyzed to lactate.”
From Catalysis as an Enabling Science for Sustainable Polymers (2018) · cites this paper as [421]
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References 28 · Cited by 61
- Authors
- Lazzari, S., Codari, F., Storti, G., Morbidelli, M., & Moscatelli, D.
- Affiliations
- ETH Zurich (CH)
- Politecnico di Milano (IT)
- Corresponding author
- Moscatelli, D.
- Venue
- Polymer Degradation and Stability
- Publisher
- Elsevier BV
- Published
- 2014-12
- Volume
- 110
- Pages
- 80-90
- ISSN
- 0141-3910 (ISSN-L)
- OpenAlex
- W2049492629
- Cited by
- 61
- References
- 28
- Citations by year
- 2026: 7 · 2025: 8 · 2024: 7 · 2023: 5 · 2022: 5 · 2021: 5 · 2020: 5 · 2019: 3 · 2018: 6 · 2017: 6 · 2016: 4
- FWCI
- 1.26
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Polymer Degradation and Stability (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer Science and PVC
- Physical Sciences › Chemistry › Organic Chemistry › Chemical Reaction Mechanisms
- Keywords
- hydrolytic degradation, acid hydrolysis, alkaline hydrolysis, rate constants, aqueous solution degradation, biodegradable polymers
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