Detailed Compositional and Structure–Property Analysis of Ethylene Oxide‐Propylene Oxide Triblock Copolymers
Abstract The polyethylene oxide‐polypropylene oxide (PEO‐PPO) based triblock copolymers are notable amphiphilic copolymers with a diverse range of applications. The presence of homo‐, and/or diblock impurities in copolymers with PEO‐PPO‐PEO triblock has been demonstrated. This finding suggests that...
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Wiley-VCH
2025-01-01
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| Series: | Macromolecular Materials and Engineering |
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| Online Access: | https://doi.org/10.1002/mame.202400297 |
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| author | Gergő Róth Tibor Nagy Ákos Kuki Levente Novák Dávid Nyul Miklós Zsuga Sándor Kéki |
| author_facet | Gergő Róth Tibor Nagy Ákos Kuki Levente Novák Dávid Nyul Miklós Zsuga Sándor Kéki |
| author_sort | Gergő Róth |
| collection | DOAJ |
| description | Abstract The polyethylene oxide‐polypropylene oxide (PEO‐PPO) based triblock copolymers are notable amphiphilic copolymers with a diverse range of applications. The presence of homo‐, and/or diblock impurities in copolymers with PEO‐PPO‐PEO triblock has been demonstrated. This finding suggests that the samples are blends rather than pure triblock copolymers. Furthermore, copolymers with triblock copolymer content of 0 or less than 20% by molar percentage have been identified. The hydrophilic‐lipophilic balance (HLB) is also calculated based on the exact composition of the blends. The effect of HLB values and compositional data on the initial foam height (in casein solution), the surface tension, and the contact angle are investigated. The correlation coefficients for the PPO‐PEO‐PPO copolymers versus HLB values are found to be high, while those obtained for the PEO‐PPO‐PEO copolymers versus values of HLB are significantly lower. The lower correlation coefficients for the PEO‐PPO‐PEO samples can be attributed to the presence of homo‐ and diblock (co)polymer contaminants. In addition, a linear regression model has been constructed to find a mathematical relationship between the percentage of ethylene oxide, the average number of propylene oxide units, and the properties of the copolymer. |
| format | Article |
| id | doaj-art-25e0cb4e06a246ea822da8516acbab1a |
| institution | DOAJ |
| issn | 1438-7492 1439-2054 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley-VCH |
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| series | Macromolecular Materials and Engineering |
| spelling | doaj-art-25e0cb4e06a246ea822da8516acbab1a2025-08-20T02:41:16ZengWiley-VCHMacromolecular Materials and Engineering1438-74921439-20542025-01-013101n/an/a10.1002/mame.202400297Detailed Compositional and Structure–Property Analysis of Ethylene Oxide‐Propylene Oxide Triblock CopolymersGergő Róth0Tibor Nagy1Ákos Kuki2Levente Novák3Dávid Nyul4Miklós Zsuga5Sándor Kéki6Department of Applied Chemistry Faculty of Science and Technology University of Debrecen Egyetem tér 1 Debrecen H‐4032 HungaryDepartment of Applied Chemistry Faculty of Science and Technology University of Debrecen Egyetem tér 1 Debrecen H‐4032 HungaryDepartment of Applied Chemistry Faculty of Science and Technology University of Debrecen Egyetem tér 1 Debrecen H‐4032 HungaryDepartment of Physical Chemistry Faculty of Science and Technology University of Debrecen Egyetem tér 1 Debrecen H‐4032 HungaryDepartment of Applied Chemistry Faculty of Science and Technology University of Debrecen Egyetem tér 1 Debrecen H‐4032 HungaryDepartment of Applied Chemistry Faculty of Science and Technology University of Debrecen Egyetem tér 1 Debrecen H‐4032 HungaryDepartment of Applied Chemistry Faculty of Science and Technology University of Debrecen Egyetem tér 1 Debrecen H‐4032 HungaryAbstract The polyethylene oxide‐polypropylene oxide (PEO‐PPO) based triblock copolymers are notable amphiphilic copolymers with a diverse range of applications. The presence of homo‐, and/or diblock impurities in copolymers with PEO‐PPO‐PEO triblock has been demonstrated. This finding suggests that the samples are blends rather than pure triblock copolymers. Furthermore, copolymers with triblock copolymer content of 0 or less than 20% by molar percentage have been identified. The hydrophilic‐lipophilic balance (HLB) is also calculated based on the exact composition of the blends. The effect of HLB values and compositional data on the initial foam height (in casein solution), the surface tension, and the contact angle are investigated. The correlation coefficients for the PPO‐PEO‐PPO copolymers versus HLB values are found to be high, while those obtained for the PEO‐PPO‐PEO copolymers versus values of HLB are significantly lower. The lower correlation coefficients for the PEO‐PPO‐PEO samples can be attributed to the presence of homo‐ and diblock (co)polymer contaminants. In addition, a linear regression model has been constructed to find a mathematical relationship between the percentage of ethylene oxide, the average number of propylene oxide units, and the properties of the copolymer.https://doi.org/10.1002/mame.202400297detailed copolymer analysisdiblock impurityinitial foam heightPEO‐PPO block copolymerspoloxamers |
| spellingShingle | Gergő Róth Tibor Nagy Ákos Kuki Levente Novák Dávid Nyul Miklós Zsuga Sándor Kéki Detailed Compositional and Structure–Property Analysis of Ethylene Oxide‐Propylene Oxide Triblock Copolymers Macromolecular Materials and Engineering detailed copolymer analysis diblock impurity initial foam height PEO‐PPO block copolymers poloxamers |
| title | Detailed Compositional and Structure–Property Analysis of Ethylene Oxide‐Propylene Oxide Triblock Copolymers |
| title_full | Detailed Compositional and Structure–Property Analysis of Ethylene Oxide‐Propylene Oxide Triblock Copolymers |
| title_fullStr | Detailed Compositional and Structure–Property Analysis of Ethylene Oxide‐Propylene Oxide Triblock Copolymers |
| title_full_unstemmed | Detailed Compositional and Structure–Property Analysis of Ethylene Oxide‐Propylene Oxide Triblock Copolymers |
| title_short | Detailed Compositional and Structure–Property Analysis of Ethylene Oxide‐Propylene Oxide Triblock Copolymers |
| title_sort | detailed compositional and structure property analysis of ethylene oxide propylene oxide triblock copolymers |
| topic | detailed copolymer analysis diblock impurity initial foam height PEO‐PPO block copolymers poloxamers |
| url | https://doi.org/10.1002/mame.202400297 |
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