| Titre : |
Blue core-shell nanospheres prepared by dyeing poly(styrene-co-methacrylic acid) dispersions |
| Type de document : |
texte imprimé |
| Auteurs : |
Kuanjun Fang, Auteur ; Xiaojie Xua, Auteur ; Yuqing Cai, Auteur ; Longyun Hao, Auteur ; Jianbo Zhang, Auteur ; Yunguo Zhao, Auteur |
| Année de publication : |
2015 |
| Article en page(s) : |
p. 458-463 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Copolymère styrène/acide méthacrylique
Copolymères -- Synthèse
Nanoparticules
Polymères en émulsion
Teinture -- Fibres textiles
|
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
Blue poly(styrene-co-methacrylic acid) nanospheres were prepared by dyeing polymer dispersions with CI Disperse Blue 56. The coloured nanospheres had a clear shell with a thickness of 32.5 nm. The average diameter of the nanospheres increased from 288 to 353 nm, and the glass transition temperature was raised from 109.6 to 117.9 °C after coloration. Ultraviolet-visible absorption spectra, transmission electron microscopy, and differential scanning calorimetry show that the amino and/or hydroxyl groups of the disperse dyes formed hydrogen bonds with the carboxyl groups on the surfaces of the nanospheres during the coloration process, resulting in increased particle sizes and shell layers. The dye content increased almost linearly with increasing dye concentrations or dyeing temperatures within a certain range. By increasing the pH of the dyeing bath from 4 to 5, the dye content increased sharply from 0.68 to 1.49% because of the ionisation of the carboxyl groups of the macromolecules. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Synthesis of poly(styrene-co-methacrylic acid) nanosphere dispersions - Preparation and purification of coloured poly(styrene-co-methacrylic acid) nanospheres - Dye contents of the coloured nanospheres - Ultraviolet-visible measurements - Transmission electron microscopy - Differential scanning calorimetry
- RESULTS AND DISCUSSION : Morphology of the poly(styrene-co-methacrylic acid) nanospheres - Glass transition temperatures - Ultraviolet-visible spectra of the coloured nanospheres - Dye contents of the coloured poly(styrene-co-methacrylic acid) nanospheres |
| DOI : |
10.1111/cote.12181 |
| En ligne : |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12181 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25115 |
in COLORATION TECHNOLOGY > Vol. 131, N° 6 (12/2015) . - p. 458-463
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Blue core-shell nanospheres prepared by dyeing poly(styrene-co-methacrylic acid) dispersions in COLORATION TECHNOLOGY, Vol. 131, N° 6 (12/2015)
