Directing alkyl chain ordering of functional phosphorus coupling agents on ZrO2

ZrO(2) powder (6.6 m(2)/g) was modified using polymerizable phosphorus-based coupling agents (P-CAs) (i.e., phosphonic acid, phosphoric acid, and bis-phosphonic acid), resulting in densely grafted layers as determined by thermogravimetry and elemental analysis (up to 4.2 molecules/nm(2)). The applie...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 27(2011), 7 vom: 05. Apr., Seite 3534-40
1. Verfasser: Lomoschitz, Christoph J (VerfasserIn)
Weitere Verfasser: Feichtenschlager, Bernhard, Moszner, Norbert, Puchberger, Michael, Müller, Klaus, Abele, Matthias, Kickelbick, Guido
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2011
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Diphosphonates Organophosphonates Phosphoric Acids Phosphorus 27YLU75U4W Zirconium C6V6S92N3C phosphoric acid mehr... E4GA8884NN zirconium oxide S38N85C5G0
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520 |a ZrO(2) powder (6.6 m(2)/g) was modified using polymerizable phosphorus-based coupling agents (P-CAs) (i.e., phosphonic acid, phosphoric acid, and bis-phosphonic acid), resulting in densely grafted layers as determined by thermogravimetry and elemental analysis (up to 4.2 molecules/nm(2)). The applied P-CAs contained a methacrylate group, which led to the covalent incorporation of a polymerizable moiety into the grafted layer. To direct the ordering of the alkyl chains in the layer, three different approaches were evaluated with respect to their structure-directing ability by means of FT-IR and nitrogen sorption at 77 K: (i) variation of the chain length, (ii) variation of the anchoring group and (iii) comodification with a defined amount of a nonfunctional phosphonic acid (variation of the functional/nonfunctional acid ratio). It was shown that the chain length and anchoring group size have significant effects on the alkyl chain ordering and morphology of the layer 
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650 4 |a Research Support, Non-U.S. Gov't 
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650 7 |a Phosphorus  |2 NLM 
650 7 |a 27YLU75U4W  |2 NLM 
650 7 |a Zirconium  |2 NLM 
650 7 |a C6V6S92N3C  |2 NLM 
650 7 |a phosphoric acid  |2 NLM 
650 7 |a E4GA8884NN  |2 NLM 
650 7 |a zirconium oxide  |2 NLM 
650 7 |a S38N85C5G0  |2 NLM 
700 1 |a Feichtenschlager, Bernhard  |e verfasserin  |4 aut 
700 1 |a Moszner, Norbert  |e verfasserin  |4 aut 
700 1 |a Puchberger, Michael  |e verfasserin  |4 aut 
700 1 |a Müller, Klaus  |e verfasserin  |4 aut 
700 1 |a Abele, Matthias  |e verfasserin  |4 aut 
700 1 |a Kickelbick, Guido  |e verfasserin  |4 aut 
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