| Titre : |
Amphiphilic hyperbranched polymers : synthesis, characterization and self-assembly performance |
| Type de document : |
texte imprimé |
| Auteurs : |
Ren Longfang, Auteur ; Qiaoxuan Niu, Auteur ; Jing Zhao, Auteur ; Taotao Qiang, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
12 p. |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Caractérisation
Composés amphiphiles
Encapsulation
Polymères -- Synthèse
Polymères amphiphiles
Systèmes auto-assemblés
|
| Index. décimale : |
668.9 Polymères |
| Résumé : |
A series of amphiphilic hyperbranched polymers (AHP-s, the “s” refers to the algebra of AHP) were synthesized by the reaction between hydroxyl-terminated hyperbranched polymers (HBP-s, the “s” refers to the algebra of HBP) and palmitoyl chloride. FTIR, NMR and GPC were used to determine the structure of AHP-s, the results showed that AHP-s exhibits core-shell structure. The thermal properties of polymers were investigated by DSC and TGA. It was found that AHP-2, AHP-3 and AHP-4 display higher thermal stability than AHP-1 (AHP-1, AHP-2, AHP-3 and AHP-4 represent the first, second, third and fourth generation AHP, respectively). Furthermore, the self-assembly performance of AHP-s in THF solvent was investigated by TEM and SEM. Finally, the encapsulation capacity of the AHP-s for methyl orange (MO) was explored at different concentrations of AHP-s and pH conditions. It was found that AHP-s is capable of accommodating hydrophilic guest MO. Moreover, the higher generation of AHP-s, the stronger encapsulation capacity obtained. And the encapsulation capacity closely associated with the pH of encapsulation system. |
| Note de contenu : |
- EXPERIMENTAL SECTION : Materials - Synthesis of amphiphilic hyperbranched polymers (AHP-s) - Characterization - Self-assembly experimental method in THF - Methodology for dye extraction phase transfer processes - Phase transfer experiment under different pH
- RESULTS AND DISCUSSION : Characterization of amphiphilic hyperbranched polymers - Thermal properties of amphiphilic hyperbranched polymers - Self-assembly of amphiphilic hyperbranched polymers in THF - Phase transfer mechanism - Phase transfer mechanism under different pH |
| DOI : |
https://doi.org/10.1186/s42825-019-0015-7 |
| En ligne : |
https://link.springer.com/content/pdf/10.1186/s42825-019-0015-7.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37328 |
in JOURNAL OF LEATHER SCIENCE AND ENGINEERING > Vol. 2 (Année 2020) . - 12 p.
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