Dispersion polymerization of methyl methacrylate using poly(HDFDMA-co-MMA) as a surfactant in supercritical carbon dioxide / Jungin Shin in Industrial & engineering chemistry research, Vol. 47 n°15 (Août 2008)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 47 n°15 (Août 2008) . - p. 5680–5685 Titre : Dispersion polymerization of methyl methacrylate using poly(HDFDMA-co-MMA) as a surfactant in supercritical carbon dioxide Type de document : texte imprimé Auteurs : Jungin Shin, Auteur ; Kyung Shil Oh, Auteur ; Won Bae, Auteur ; Youn Woo Lee, Auteur Année de publication : 2008 Article en page(s) : p. 5680–5685 Note générale : Bibliogr. p. 5684-5685 Langues : Anglais (eng) Mots-clés : Methyl methacrylate  Dispersion polymerization Résumé : New surfactants, random copolymers of heptadecafluorodecyl methacrylate (HDFDMA) and methyl methacrylate (MMA), were synthesized at 343.2 K and 30 MPa in supercritical carbon dioxide (scCO2) with varying HDFDMA/MMA ratios. 1H NMR and FT-IR were used to confirm the structure and to determine the composition of the resulting copolymers. The phase behavior of poly(HDFDMA-co-MMA) in CO2 was obtained by means of a variable volume view cell, which will be used to select the polymerization condition. After that, dispersion polymerization of methyl methacrylate (MMA) in scCO2 was performed using 2,2′-azobis(isobutyronitrile) (AIBN) as the initiator and poly(HDFDMA-co-MMA) with various MMA mole fraction as a surfactant. The new surfactant, poly(HDFDMA-co-MMA), whose MMA content is lower than 12.3 wt %, shows comparable capacity to produce PMMA particles compared to poly(HDFDMA) surfactant. The resulting PMMA particles, such as those produced using poly(HDFDMA) homopolymer as a surfactant, could also be produced with poly(HDFDMA-co-MMA) up to 12.3 wt % MMA. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie070995v [article] Dispersion polymerization of methyl methacrylate using poly(HDFDMA-co-MMA) as a surfactant in supercritical carbon dioxide [texte imprimé] / Jungin Shin, Auteur ; Kyung Shil Oh, Auteur ; Won Bae, Auteur ; Youn Woo Lee, Auteur . - 2008 . - p. 5680–5685. Bibliogr. p. 5684-5685 Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 n°15 (Août 2008) . - p. 5680–5685 Mots-clés : Methyl methacrylate  Dispersion polymerization Résumé : New surfactants, random copolymers of heptadecafluorodecyl methacrylate (HDFDMA) and methyl methacrylate (MMA), were synthesized at 343.2 K and 30 MPa in supercritical carbon dioxide (scCO2) with varying HDFDMA/MMA ratios. 1H NMR and FT-IR were used to confirm the structure and to determine the composition of the resulting copolymers. The phase behavior of poly(HDFDMA-co-MMA) in CO2 was obtained by means of a variable volume view cell, which will be used to select the polymerization condition. After that, dispersion polymerization of methyl methacrylate (MMA) in scCO2 was performed using 2,2′-azobis(isobutyronitrile) (AIBN) as the initiator and poly(HDFDMA-co-MMA) with various MMA mole fraction as a surfactant. The new surfactant, poly(HDFDMA-co-MMA), whose MMA content is lower than 12.3 wt %, shows comparable capacity to produce PMMA particles compared to poly(HDFDMA) surfactant. The resulting PMMA particles, such as those produced using poly(HDFDMA) homopolymer as a surfactant, could also be produced with poly(HDFDMA-co-MMA) up to 12.3 wt % MMA. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie070995v

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