| Titre : |
Enhancing the stability of polystyrene ultrathin films by using star-shape polymers as dewetting inhibitors |
| Type de document : |
texte imprimé |
| Auteurs : |
Nampueng Pangpaiboon, Auteur ; Rakchart Traiphol, Auteur ; Nisamart Traiphol, Auteur |
| Année de publication : |
2015 |
| Article en page(s) : |
p. 1173-1183 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Additifs
Couches minces -- Stabilité
Revêtements -- Additifs
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
This contribution introduces a new class of materials for improving the stability of polystyrene (PS) ultrathin films. Two types of three-arm polystyrenes (TA-PS) with different arm lengths are added into PS thin films with thicknesses of 7 and 23 nm. Concentration of the TA-PS additives is varied from 0 to 40 wt%. The morphological change of PS films upon annealing above its glass transition temperature is followed by utilizing optical and atomic force microscopy. Our results show that the addition of TA-PS into PS films leads to significant improvement of the film stability. The dewetting rate of PS film containing only 5 wt% of TA-PS is 3 times slower than that of the pure PS film. The increase of TA-PS concentration results in systematic decrease of the dewetting rate. We also observe that the dewetting-suppression efficiency of the TA-PS depends significantly on its arm length. |
| Note de contenu : |
- Effects of TA-PS additive on film stability
- Effects of TA-PS arm length
- Effects of film thickness |
| DOI : |
10.1007/s11998-015-9715-y |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-015-9715-y.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24975 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 12, N° 6 (11/2015) . - p. 1173-1183
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