Hybrid Porous Microparticles Based on a Single Organosilica Cyclophosphazene Precursor
Porous organosilica microparticles consisting of silane-derived cyclophosphazene bridges were synthesized by a surfactant-mediated sol-gel process. Starting from the substitution of hexachlorocyclotriphosphazene with allylamine, two different precursors were obtained by anchoring three or six alkoxy...
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| Language: | English |
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MDPI AG
2020-11-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/21/22/8552 |
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| author | Vanessa Poscher George S. Pappas Oliver Brüggemann Ian Teasdale Yolanda Salinas |
| author_facet | Vanessa Poscher George S. Pappas Oliver Brüggemann Ian Teasdale Yolanda Salinas |
| author_sort | Vanessa Poscher |
| collection | DOAJ |
| description | Porous organosilica microparticles consisting of silane-derived cyclophosphazene bridges were synthesized by a surfactant-mediated sol-gel process. Starting from the substitution of hexachlorocyclotriphosphazene with allylamine, two different precursors were obtained by anchoring three or six alkoxysilane units, via a thiol-ene photoaddition reaction. In both cases, spherical, microparticles (size average of ca. 1000 nm) with large pores were obtained, confirmed by both, scanning and transmission electron microscopy. Particles synthesized using the partially functionalized precursor containing free vinyl groups were further functionalized with a thiol-containing molecule. While most other reported mesoporous organosilica particles are essentially hybrids with tetraethyl orthosilicate (TEOS), a unique feature of these particles is that structural control is achieved by exclusively using organosilane precursors. This allows an increase in the proportion of the co-components and could springboard these novel phosphorus-containing organosilica microparticles for different areas of technology. |
| first_indexed | 2024-03-10T14:53:07Z |
| format | Article |
| id | doaj.art-ae459466dffe47cd92ef56439f1941ba |
| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-10T14:53:07Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-ae459466dffe47cd92ef56439f1941ba2023-11-20T20:50:00ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672020-11-012122855210.3390/ijms21228552Hybrid Porous Microparticles Based on a Single Organosilica Cyclophosphazene PrecursorVanessa Poscher0George S. Pappas1Oliver Brüggemann2Ian Teasdale3Yolanda Salinas4Institute of Polymer Chemistry, Johannes Kepler University at Linz, Altenberger Strasse 69, 4040 Linz, AustriaInstitute of Polymer Chemistry, Johannes Kepler University at Linz, Altenberger Strasse 69, 4040 Linz, AustriaInstitute of Polymer Chemistry, Johannes Kepler University at Linz, Altenberger Strasse 69, 4040 Linz, AustriaInstitute of Polymer Chemistry, Johannes Kepler University at Linz, Altenberger Strasse 69, 4040 Linz, AustriaInstitute of Polymer Chemistry, Johannes Kepler University at Linz, Altenberger Strasse 69, 4040 Linz, AustriaPorous organosilica microparticles consisting of silane-derived cyclophosphazene bridges were synthesized by a surfactant-mediated sol-gel process. Starting from the substitution of hexachlorocyclotriphosphazene with allylamine, two different precursors were obtained by anchoring three or six alkoxysilane units, via a thiol-ene photoaddition reaction. In both cases, spherical, microparticles (size average of ca. 1000 nm) with large pores were obtained, confirmed by both, scanning and transmission electron microscopy. Particles synthesized using the partially functionalized precursor containing free vinyl groups were further functionalized with a thiol-containing molecule. While most other reported mesoporous organosilica particles are essentially hybrids with tetraethyl orthosilicate (TEOS), a unique feature of these particles is that structural control is achieved by exclusively using organosilane precursors. This allows an increase in the proportion of the co-components and could springboard these novel phosphorus-containing organosilica microparticles for different areas of technology.https://www.mdpi.com/1422-0067/21/22/8552porous organosilica microparticlescyclophosphazenespost-functionalizationdegradabilityhybrid materials |
| spellingShingle | Vanessa Poscher George S. Pappas Oliver Brüggemann Ian Teasdale Yolanda Salinas Hybrid Porous Microparticles Based on a Single Organosilica Cyclophosphazene Precursor International Journal of Molecular Sciences porous organosilica microparticles cyclophosphazenes post-functionalization degradability hybrid materials |
| title | Hybrid Porous Microparticles Based on a Single Organosilica Cyclophosphazene Precursor |
| title_full | Hybrid Porous Microparticles Based on a Single Organosilica Cyclophosphazene Precursor |
| title_fullStr | Hybrid Porous Microparticles Based on a Single Organosilica Cyclophosphazene Precursor |
| title_full_unstemmed | Hybrid Porous Microparticles Based on a Single Organosilica Cyclophosphazene Precursor |
| title_short | Hybrid Porous Microparticles Based on a Single Organosilica Cyclophosphazene Precursor |
| title_sort | hybrid porous microparticles based on a single organosilica cyclophosphazene precursor |
| topic | porous organosilica microparticles cyclophosphazenes post-functionalization degradability hybrid materials |
| url | https://www.mdpi.com/1422-0067/21/22/8552 |
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