Prediction and evaluation of styrenic block copolymers as surface modifiers for multiwalled carbon nanotubes in a - terpineol - based pastes / Sung Chul Hong in Industrial & engineering chemistry research, Vol. 49 N° 22 (Novembre 2010)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 49 N° 22 (Novembre 2010) . - pp. 11393–11401 Titre : Prediction and evaluation of styrenic block copolymers as surface modifiers for multiwalled carbon nanotubes in a - terpineol - based pastes Type de document : texte imprimé Auteurs : Sung Chul Hong, Auteur ; Jeong Eun Shin, Auteur ; Hee Jung Choi, Auteur Année de publication : 2011 Article en page(s) : pp. 11393–11401 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Copolymers Nanotubes Résumé : A well-defined styrenic block copolymer was prepared through controlled/“living” radical polymerization technique and evaluated as a polymeric surface modifier for multiwalled carbon nanotube (MWCNT) in α-terpineol-based paste. First, poly(maleic anhydride-co-p-acetoxystyrene)-block-poly(p-acetoxystyrene) copolymer was prepared through a nitroxide-mediated polymerization (NMP) technique in an efficient “one-pot” reaction. The copolymer was then functionalized with pyrene through an imidization reaction (SPM). Finally, p-acetoxystyrene units were converted to p-hydroxystyrene units through hydrolysis, affording pyrene-functionalized poly(maleic acid-co-p-hydroxystyrene)-block-poly(p-hydroxystyrene) (HSPM). Pyrene units in one block afforded efficient attachment points to the surface of MWCNT through π−π interaction, while poly(p-hydroxystyrene) or poly(p-acetoxystyrene) tails afforded enhanced affinities with α-terpineol, as predicted by Hansen solubility parameter theory. Fabrications of electrodes through screen printing procedures employing MWCNT/HSPM or MWCNT/SPM pastes were facilitated through the surface modification of MWCNTs with the block copolymers, as evidenced by low viscosity, more homogeneous and smooth pastes, homogeneous/uniform MWCNT coatings, and low sheet resistance of the electrode. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1013822 [article] Prediction and evaluation of styrenic block copolymers as surface modifiers for multiwalled carbon nanotubes in a - terpineol - based pastes [texte imprimé] / Sung Chul Hong, Auteur ; Jeong Eun Shin, Auteur ; Hee Jung Choi, Auteur . - 2011 . - pp. 11393–11401. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 22 (Novembre 2010) . - pp. 11393–11401 Mots-clés : Copolymers Nanotubes Résumé : A well-defined styrenic block copolymer was prepared through controlled/“living” radical polymerization technique and evaluated as a polymeric surface modifier for multiwalled carbon nanotube (MWCNT) in α-terpineol-based paste. First, poly(maleic anhydride-co-p-acetoxystyrene)-block-poly(p-acetoxystyrene) copolymer was prepared through a nitroxide-mediated polymerization (NMP) technique in an efficient “one-pot” reaction. The copolymer was then functionalized with pyrene through an imidization reaction (SPM). Finally, p-acetoxystyrene units were converted to p-hydroxystyrene units through hydrolysis, affording pyrene-functionalized poly(maleic acid-co-p-hydroxystyrene)-block-poly(p-hydroxystyrene) (HSPM). Pyrene units in one block afforded efficient attachment points to the surface of MWCNT through π−π interaction, while poly(p-hydroxystyrene) or poly(p-acetoxystyrene) tails afforded enhanced affinities with α-terpineol, as predicted by Hansen solubility parameter theory. Fabrications of electrodes through screen printing procedures employing MWCNT/HSPM or MWCNT/SPM pastes were facilitated through the surface modification of MWCNTs with the block copolymers, as evidenced by low viscosity, more homogeneous and smooth pastes, homogeneous/uniform MWCNT coatings, and low sheet resistance of the electrode. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie1013822

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