| Titre : |
Grafting of functional monomers through atom transfer radical polymerisation (ATRP) |
| Type de document : |
texte imprimé |
| Auteurs : |
Ega Shivakumar, Auteur ; Vinayak Chopde, Auteur ; Kumar Ghosh Swapan, Auteur ; Sisir Mandal, Auteur ; Rohit Karande, Auteur |
| Année de publication : |
2015 |
| Article en page(s) : |
p. 62-70 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Catalyseurs au cuivre
Copolymères greffés
Ligands
Monomères
Polymères -- Synthèse
Polymérisation
Polymérisation radicalaire par transfert d'atome
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The pre-polymer (ATRP macro-initiator) was prepared by the copolymerisation of methyl methacrylate (MMA), 2-ethyl hexylacrylate (2-EHA) and ATRP monomer (synthesized in the laboratory) via conventional free radical polymerisation technique. The pre-polymer contains a halide functionality, which was further used for surface grafting of styrene and hydroxyethyl methacrylate via ATRP polymerisation. The effect of the catalyst and temperature on the rate of polymerisation was investigated. The percentage conversion and molecular weight was increased with increase in catalyst concentration and temperature. The synthesized graft copolymers were dissolved in butyl acetate catalyst dosage of 5000 ppm with temperature at 90°C. The synthesized products were then characterized by differential scanning calorimetry (DSC), gel permeation chromatography (GPC) and infra-red (IR) spectroscopy techniques. Complete conversion of monomer was confirmed from gas chromatography (GC) analysis. The variation in Tg for the graft copolymer confirmed the grafting of desired polymer onto the pre-polymer. |
| Note de contenu : |
- EXPERIMENTAL DETAILS : Materials - Synthesis of acrylic resin - Synthesis of ATRP monomer - Synthesis of pre-polymer (ATRP macro-initiator) - Synthesis of graf copolymer through ATRP
- RESULTS & DISCUSSIONS : Effect of catalyst on ATRP monomer conversion - Effect of molecular weight on grafting - Effect of temperature on styrene conversion through grafting - Effect of concentration on styrene conversion through grafting - Glass transition temperature (Tg) - FTIR spectra |
| En ligne : |
https://drive.google.com/file/d/1kRwgGVWdJZiErOGePRSoi9ebjt8JNZ0Z/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25266 |
in PAINTINDIA > Vol. LXV, N° 11 (11/2015) . - p. 62-70
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