| Titre : |
Ion etching induced surface patterns of blend polymer (Poly ethylene glycol – Poly methyl methacrylate) irradiated with gamma rays |
| Type de document : |
texte imprimé |
| Auteurs : |
Mohamed Mohamady Ghobashy, Auteur ; A. M. Abdel Reheem, Auteur ; N. A. Mazied, Auteur |
| Année de publication : |
2017 |
| Article en page(s) : |
p. 174-182. |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Alliages polymères
Alliages polymères -- Propriétés thermiques
Argent
Couches minces multicouches
Cuivre
Films plastiques
Gravure
Irradiation
Polyéthylène glycol
Polyméthacrylate de méthyleLe poly(méthacrylate de méthyle) (souvent abrégé en PMMA, de l'anglais Poly(methyl methacrylate)) est un polymère thermoplastique transparent obtenu par polyaddition dont le monomère est le méthacrylate de méthyle (MMA). Ce polymère est plus connu sous son premier nom commercial de Plexiglas (nom déposé), même si le leader global du PMMA est Altuglas International9 du groupe Arkema, sous le nom commercial Altuglas. Il est également vendu sous les noms commerciaux Lucite, Crystalite, Perspex ou Nudec.
Pulvérisation cathodique
Rayons gamma
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
The pattern surface structure of a thin blend polymer film of Poly methyl methacrylate (PMMA) – Poly ethylene glycol (PEG) induced by Ar+ ion etching (5 keV) has been investigated by scanning electron microscopy. Blend polymer films have been obtained consisting of a hydrophilic PEG and a hydrophobic PMMA distributed in co-continuous phases. Four different compositions of the two polymers are dissolved in chloroform and irradiated with gamma rays (60Co) at 20 kGy to produce transparent films of blend polymer PMMA-PEG after casting. Self-assembled of PMMA-PEG film is obtained because of the high contrast between the two polymers. Ion-polymer interaction with a hydrophilic polymer (Ar+ +PEG) rather than the high etch resistance of hydrophobic polymer (Ar+ ?PMMA) was observed. The results are discussed in terms of significant destruction of bonds in the blend polymer films as a result of which one polymer undergoes rapid dissociation rather than the other one. This means that etching with Ar+ ions of the PMMA domains are stable and PEG can be selective. The ATR-FTIR spectrum shows the absence of hydrogen bonds and XRD/DSC curves show the crystanility of PMMA depending on the PEG contents and gamma radiation effect, irradiated blend polymer PMMA/PEG has shown more resistant at thermal degradation than irradiated PMMA. This indicates that the PEG contents have an effect on the thermal stability of PMMA/PEG as detected by TGA. Finally, the pattern surface of irradiated blend polymer (PMMA-2%PEG) was plated with two coaxial layers subsequently of copper (Cu) and silver (Ag) using sputter technique. |
| Note de contenu : |
- EXPERIMENTAL : Gamma radiation source - Apparatuses - Preparation methods - Characterizations of the samples
- RESULTS AND DISCUSSION : Chemical interaction of the blend polymer PMMA/PEG samples determined by ATR/FT-IR spectrum - Effect of the gamma irradiation and PEG content in the crystallite of PMMA - Scanning electron and optical microscope for gamma irradiated blend polymer PMMA-PEG film - Thermal analysis of blend polymer PMMA-PEG film - X-ray diffraction for ion itching and silver coating of PMMA-PEG film - Scan electron microscope for itching and silver coating blend polymer PMMA-PEG film |
| DOI : |
10.3139/217.3258 |
| En ligne : |
https://drive.google.com/file/d/1pl3PiQmjlf4mrMpme7ygAkOXtftpuxBl/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28493 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXII, N° 2 (05/2017) . - p. 174-182.
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