Inorganic-salts assisted self-assembly of pluronic F127-organosilica into ordered mesostructures

Liu, T; Tian, H; Liu, J; Liu, L; Liu, S

Inorganic-salts assisted self-assembly of pluronic F127-organosilica into ordered mesostructures

Liu, T Tian, H

Liu, J Liu, L Liu, S

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Publisher:: AMER SCIENTIFIC PUBLISHERS
Publication Type:: Journal Article
Citation:: Journal of Nanoscience and Nanotechnology, 2016, 16, (9), pp. 9173-9179
Issue Date:: 2016-09-01

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Field	Value	Language
dc.contributor.author	Liu, T
dc.contributor.author	Tian, H https://orcid.org/0000-0002-9581-0027
dc.contributor.author	Liu, J
dc.contributor.author	Liu, L
dc.contributor.author	Liu, S
dc.date.accessioned	2022-08-03T22:47:25Z
dc.date.available	2022-08-03T22:47:25Z
dc.date.issued	2016-09-01
dc.identifier.citation	Journal of Nanoscience and Nanotechnology, 2016, 16, (9), pp. 9173-9179
dc.identifier.issn	1533-4880
dc.identifier.issn	1533-4899
dc.identifier.uri	http://hdl.handle.net/10453/159586
dc.description.abstract	Periodic mesoporous organosilicas (PMOs) have been synthesized through the condensation of organosilicates 1,2-bis(trimethoxysilyl) ethane around inorganic-electrolyte-stabilized Pluronic F127 [(EO)106(PO)70(EO)106] triblock copolymer micelles in a sodium bicarbonate (NaHCO3)/sodium carbonate (Na2CO3) buffer solution (pH ≈ 9.9). It is found that the addition of inorganic sulfate salts in the synthesis is crucial factor to ensure the formation of ordered mesostructures. The addition of Na2SO4 and MgSO4 in the synthesis system can lead to the formation of ordered 2-D hexagonal (P6mm) and 3-D cubic (Im3m) mesostructure, respectively. The effects of other inorganic sulfate salts such as CuSO4, NiSO4, and ZnSO4 have also been investigated. Apparently, the interaction between Pluronic F127 micelle and organosilica oligomers is enhanced by the presence of these inorganic salts. The mechanism for PMOs formation has been proposed on the basis of inorganic salts assisted micelles-organosilicates closed packing under mild synthetic condition. The findings from this work contribute fundamental understanding towards a new formation route of these ordered mesoporous materials, thus providing a new strategy to fabricate mesoporous silicas with controllable structures for emerging applications.
dc.language	English
dc.publisher	AMER SCIENTIFIC PUBLISHERS
dc.relation.ispartof	Journal of Nanoscience and Nanotechnology
dc.relation.isbasedon	10.1166/jnn.2016.12916
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	03 Chemical Sciences, 09 Engineering, 10 Technology
dc.subject.classification	Nanoscience & Nanotechnology
dc.title	Inorganic-salts assisted self-assembly of pluronic F127-organosilica into ordered mesostructures
dc.type	Journal Article
utslib.citation.volume	16
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
utslib.for	10 Technology
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	closed_access	*
dc.date.updated	2022-08-03T22:47:22Z
pubs.issue	9
pubs.publication-status	Published
pubs.volume	16
utslib.citation.issue	9

Abstract:

Periodic mesoporous organosilicas (PMOs) have been synthesized through the condensation of organosilicates 1,2-bis(trimethoxysilyl) ethane around inorganic-electrolyte-stabilized Pluronic F127 [(EO)106(PO)70(EO)106] triblock copolymer micelles in a sodium bicarbonate (NaHCO3)/sodium carbonate (Na2CO3) buffer solution (pH ≈ 9.9). It is found that the addition of inorganic sulfate salts in the synthesis is crucial factor to ensure the formation of ordered mesostructures. The addition of Na2SO4 and MgSO4 in the synthesis system can lead to the formation of ordered 2-D hexagonal (P6mm) and 3-D cubic (Im3m) mesostructure, respectively. The effects of other inorganic sulfate salts such as CuSO4, NiSO4, and ZnSO4 have also been investigated. Apparently, the interaction between Pluronic F127 micelle and organosilica oligomers is enhanced by the presence of these inorganic salts. The mechanism for PMOs formation has been proposed on the basis of inorganic salts assisted micelles-organosilicates closed packing under mild synthetic condition. The findings from this work contribute fundamental understanding towards a new formation route of these ordered mesoporous materials, thus providing a new strategy to fabricate mesoporous silicas with controllable structures for emerging applications.

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http://hdl.handle.net/10453/159586