Polycondensation of Dicarboxylic Acids and Diols in Water Catalyzed by Surfactant-Combined Catalysts and Successive Chain Extension
Abstract
Direct dehydration polycondensation of dicarboxylic acids and alcohols was carried out by surfactant-combined Brønsted and Lewis acids. This procedure did not require the removal of water, because the esterification was established at the interface of the emulsion in water. Emulsion polycondensations of 1,9-nonanediol (1,9-ND) and dodecanedioic acid (DDA) (the molar ratio of dicarboxylic acid to diol = 1:1) were carried out at 80 degrees C for 48 h in the presence of 16 wt % DBSA. The corresponding polyester (M(w) = 10.1 x 10(3)) was obtained in an excellent yield (99%). Chain extension in the emulsion was carried out using hexamethylene diisocyanate as the chain extender. SEC measurements indicated the expected shift to higher molecular weight region (M(w) = 11.4 x 10(3), M(w)/M(n) = 3.4) compared with parent polyester (M(w) = 4.5 x 10(3), M(w)/M(n) = 2.2).
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Kobayashi developed a unique catalytic system using a surfactant-like acid, DBSA, to mediate the emulsion polycondensation of aliphatic carboxylic acids and alcohols in water.
“Kobayashi developed a unique catalytic system [250][251][252] using a surfactant-like acid, such as dodecylbenzenesulfonic acid (DBSA), to mediate the emulsion polycondensation of aliphatic carboxylic acids and alcohols in water.”
From Catalysis as an Enabling Science for Sustainable Polymers (2018) · cites this paper as [252]
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Catalysis as an Enabling Science for Sustainable Polymers
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- Authors
- Takasu, A., Takemoto, A., & Hirabayashi, T.
- Affiliations
- Nagoya Institute of Technology (JP)
- Corresponding author
- Takasu, Akinori
- ORCID
- Takasu, Akinori
- Venue
- Biomacromolecules
- Publisher
- American Chemical Society (ACS)
- Published
- 2005-11-18
- Volume
- 7
- Issue
- 1
- Pages
- 6-9
- ISSN
- 1525-7797 (ISSN-L)
- 1526-4602
- OpenAlex
- W2018948506
- Cited by
- 60
- References
- 13
- Citations by year
- 2025: 1 · 2024: 1 · 2023: 1 · 2022: 3 · 2021: 2 · 2020: 2 · 2019: 2 · 2018: 2 · 2017: 5 · 2016: 4 · 2015: 1 · 2014: 6 · 2013: 5 · 2012: 5
- FWCI
- 1.54
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Biomacromolecules (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
- Physical Sciences › Chemistry › Organic Chemistry › Advanced Polymer Synthesis and Characterization
- Physical Sciences › Chemistry › Organic Chemistry › Chemical Synthesis and Reactions
- Keywords
- dicarboxylic acids, diols, dodecanedioic acid, chain extension, hexamethylene diisocyanate, polyester synthesis, molecular weight distribution
- MeSH terms
- Alcohols, Catalysis, Dicarboxylic Acids, Emulsions, Surface-Active Agents, Water, Molecular Structure
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