Preparation and surface active properties of oxypropylated α-hydroxyacids, α-hydroxyesters and α-, β-alkane diols
A series of a-hydroxyacids RCH(OH)CO2H, α-hydroxyesters RCH(OH)CO2CH3 and α, β-alkane diols was synthetized and condensed with 5-20 moles propylene oxide to obtain nonionic surfactants. Some of the physicochemical properties and the biodegradability of these products were examined. The results showe...
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| Format: | Article |
| Language: | English |
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Consejo Superior de Investigaciones Científicas
1994-10-01
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| Series: | Grasas y Aceites |
| Subjects: | |
| Online Access: | http://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1018 |
| _version_ | 1818667878268796928 |
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| author | N. O. Shaker A. A. El-Sawy A. M. F. Eissa |
| author_facet | N. O. Shaker A. A. El-Sawy A. M. F. Eissa |
| author_sort | N. O. Shaker |
| collection | DOAJ |
| description | A series of a-hydroxyacids RCH(OH)CO2H, α-hydroxyesters RCH(OH)CO2CH3 and α, β-alkane diols was synthetized and condensed with 5-20 moles propylene oxide to obtain nonionic surfactants. Some of the physicochemical properties and the biodegradability of these products were examined. The results showed that the best wetting properties were obtained by the addition of 15 oxypropylene groups to methyl α-hydroxymyristate. The α-hydroxymyristic acid with 20 moles of propylene oxide gave the highest foam. Biodegradation studies indicated that increasing both the chain length of the hydrophobic alkyl chain or the number of oxypropylene groups in the adduct decreased biodegradation. |
| first_indexed | 2024-12-17T06:27:25Z |
| format | Article |
| id | doaj.art-9766fc5bc401431997f6e7600a6cff87 |
| institution | Directory Open Access Journal |
| issn | 0017-3495 1988-4214 |
| language | English |
| last_indexed | 2024-12-17T06:27:25Z |
| publishDate | 1994-10-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Grasas y Aceites |
| spelling | doaj.art-9766fc5bc401431997f6e7600a6cff872022-12-21T22:00:16ZengConsejo Superior de Investigaciones CientíficasGrasas y Aceites0017-34951988-42141994-10-0145530931210.3989/gya.1994.v45.i5.10181000Preparation and surface active properties of oxypropylated α-hydroxyacids, α-hydroxyesters and α-, β-alkane diolsN. O. Shaker0A. A. El-Sawy1A. M. F. Eissa2Faculty of Science, Al-Azhar University, Girls' branch, CairoFaculty of Science-Zagazig University, BenhaFaculty of Science, Al-Azhar University, Girls' branch, Cairo. Faculty of Science-Zagazig University, BenhaA series of a-hydroxyacids RCH(OH)CO2H, α-hydroxyesters RCH(OH)CO2CH3 and α, β-alkane diols was synthetized and condensed with 5-20 moles propylene oxide to obtain nonionic surfactants. Some of the physicochemical properties and the biodegradability of these products were examined. The results showed that the best wetting properties were obtained by the addition of 15 oxypropylene groups to methyl α-hydroxymyristate. The α-hydroxymyristic acid with 20 moles of propylene oxide gave the highest foam. Biodegradation studies indicated that increasing both the chain length of the hydrophobic alkyl chain or the number of oxypropylene groups in the adduct decreased biodegradation.http://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1018biodegradationnonionic surfactant (preparation)physicochemical properties |
| spellingShingle | N. O. Shaker A. A. El-Sawy A. M. F. Eissa Preparation and surface active properties of oxypropylated α-hydroxyacids, α-hydroxyesters and α-, β-alkane diols Grasas y Aceites biodegradation nonionic surfactant (preparation) physicochemical properties |
| title | Preparation and surface active properties of oxypropylated α-hydroxyacids, α-hydroxyesters and α-, β-alkane diols |
| title_full | Preparation and surface active properties of oxypropylated α-hydroxyacids, α-hydroxyesters and α-, β-alkane diols |
| title_fullStr | Preparation and surface active properties of oxypropylated α-hydroxyacids, α-hydroxyesters and α-, β-alkane diols |
| title_full_unstemmed | Preparation and surface active properties of oxypropylated α-hydroxyacids, α-hydroxyesters and α-, β-alkane diols |
| title_short | Preparation and surface active properties of oxypropylated α-hydroxyacids, α-hydroxyesters and α-, β-alkane diols |
| title_sort | preparation and surface active properties of oxypropylated α hydroxyacids α hydroxyesters and α β alkane diols |
| topic | biodegradation nonionic surfactant (preparation) physicochemical properties |
| url | http://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1018 |
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