Boosting Effect of Amphiphilic Random Copolymers for Bicontinuous Phases
| Autor: | Hiroka Shirahata, Taishi Nishimura, Yutaka Takahashi, Yukishige Kondo, Masaki Murai, Kazuaki Wakita |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Polymers
General Chemical Engineering Ether Cosmetics 02 engineering and technology Decane 01 natural sciences Phase Transition Polyethylene Glycols Surface-Active Agents chemistry.chemical_compound Pulmonary surfactant Alkanes 0103 physical sciences Amphiphile Copolymer Phase diagram 010304 chemical physics Ethylene oxide Water General Medicine General Chemistry 021001 nanoscience & nanotechnology HEXA chemistry Chemical engineering 0210 nano-technology Hydrophobic and Hydrophilic Interactions |
| Zdroj: | Journal of Oleo Science. 67:531-537 |
| ISSN: | 1347-3352 1345-8957 |
| DOI: | 10.5650/jos.ess17161 |
| Popis: | Amphiphilic random copolymers, poly(oxyethylene)/poly(oxypropylene) butyl ethers (C4EmPn), have been used as raw materials for cosmetics. This paper reports on the influence of amphiphilic random copolymers on mixtures of n-decane, water, and a nonionic surfactant, hexa(oxyethylene) dodecyl ether (C12E6). Bicontinuous phases are formed from decane/water/C12E6 mixtures at high C12E6 weight fractions (> 70 wt%). Adding C4EmPn to decane/water/C12E6 mixtures brings about the formation of bicontinuous phases and a decrease in the amount of the surfactant required for their formation, indicating efficiency boosting. The bicontinuous phase formation region in the phase diagram of the decane/water/C12E6+C4E5P5 system is largest at a specific C4E5P5 weight fraction in the C12E6/C4E5P5 mixture. When a hydrophobic polymer, in which the poly(ethylene oxide) group in C4EmPn is absent, is added to decane/water/C12E6 mixtures, no efficiency boosting is observed. These results suggest that the adjustment of the hydrophilicity-hydrophobicity balance of C12E6/C4EmPn mixture causes the efficiency boosting. |
| Databáze: | OpenAIRE |
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