The Dimensional Effect in Trimethylsilylated Silica Nanoparticles
The synthesis of organosilicas with a predetermined ratio of trimethylsilyl groups and silanols using trimethyloxysilane and acetic acid as a modifier and catalyst respectively was carried out in this work. It has been established that grafted trimethylsilyl groups influence the structural state of...
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| Format: | Article |
| Language: | English |
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Sumy State University
2017-10-01
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| Series: | Журнал нано- та електронної фізики |
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| Online Access: | http://jnep.sumdu.edu.ua:8080/download/numbers/2017/5/articles/Proof_JNEP_05030.pdf |
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| author | I.F. Myronyuk Y.P.В Voronin V.Р†.В Mandzyuk N.A.В Bezruka T.V.В Dmytrotsa |
| author_facet | I.F. Myronyuk Y.P.В Voronin V.Р†.В Mandzyuk N.A.В Bezruka T.V.В Dmytrotsa |
| author_sort | I.F. Myronyuk |
| collection | DOAJ |
| description | The synthesis of organosilicas with a predetermined ratio of trimethylsilyl groups and silanols using trimethyloxysilane and acetic acid as a modifier and catalyst respectively was carried out in this work. It has been established that grafted trimethylsilyl groups influence the structural state of silica. The reducing of the surface tension and, consequently, the Laplace pressure in the SiO2 globules leads to an increase in the valence angle in the siloxane bridges and the length of Si – O-bond. This dimensional effect in the IR-spectra of modified silica is displayed by displacement of absorption bands in the short-wave region associated with asymmetric (a) and asymmetric-deformation (а + O Si O) vibrations of siloxane bridges. |
| format | Article |
| id | doaj-art-9bb4fb77d3144dae9d8ac2649430cbbb |
| institution | OA Journals |
| issn | 2077-6772 |
| language | English |
| publishDate | 2017-10-01 |
| publisher | Sumy State University |
| record_format | Article |
| series | Журнал нано- та електронної фізики |
| spelling | doaj-art-9bb4fb77d3144dae9d8ac2649430cbbb2025-08-20T02:18:27ZengSumy State UniversityЖурнал нано- та електронної фізики2077-67722017-10-019505030-105030-510.21272/jnep.9(5).05030The Dimensional Effect in Trimethylsilylated Silica NanoparticlesI.F. Myronyuk0Y.P.В Voronin1V.Р†.В Mandzyuk23N.A.В Bezruka4T.V.В Dmytrotsa5SHEE “Vasyl Stefanyk Precarpathian National University”, 57, Shevchenko Str., 76018 Ivano-Frankivsk, UkraineChuiko Institute of Surface Chemistry of NAS of Ukraine, 17, General Naumov Str., 03164 Kyiv, UkraineSHEE “Vasyl Stefanyk Precarpathian National University”, 57, Shevchenko Str., 76018 Ivano-Frankivsk, UkraineSHEE “Vasyl Stefanyk Precarpathian National University”, 57, Shevchenko Str., 76018 Ivano-Frankivsk, UkraineIvano-Frankivsk National Medical University, 2, Halytska Str., 76018 Ivano-Frankivsk, UkraineIvano-Frankivsk National Medical University, 2, Halytska Str., 76018 Ivano-Frankivsk, UkraineThe synthesis of organosilicas with a predetermined ratio of trimethylsilyl groups and silanols using trimethyloxysilane and acetic acid as a modifier and catalyst respectively was carried out in this work. It has been established that grafted trimethylsilyl groups influence the structural state of silica. The reducing of the surface tension and, consequently, the Laplace pressure in the SiO2 globules leads to an increase in the valence angle in the siloxane bridges and the length of Si – O-bond. This dimensional effect in the IR-spectra of modified silica is displayed by displacement of absorption bands in the short-wave region associated with asymmetric (пЃ®a) and asymmetric-deformation (а +В пЃ¤OВ SiВ O) vibrations of siloxane bridges.http://jnep.sumdu.edu.ua:8080/download/numbers/2017/5/articles/Proof_JNEP_05030.pdfSilicaSiloxane bondSilanolsTrimethylsilyl groupsTrimethyloxysilan |
| spellingShingle | I.F. Myronyuk Y.P.В Voronin V.Р†.В Mandzyuk N.A.В Bezruka T.V.В Dmytrotsa The Dimensional Effect in Trimethylsilylated Silica Nanoparticles Журнал нано- та електронної фізики Silica Siloxane bond Silanols Trimethylsilyl groups Trimethyloxysilan |
| title | The Dimensional Effect in Trimethylsilylated Silica Nanoparticles |
| title_full | The Dimensional Effect in Trimethylsilylated Silica Nanoparticles |
| title_fullStr | The Dimensional Effect in Trimethylsilylated Silica Nanoparticles |
| title_full_unstemmed | The Dimensional Effect in Trimethylsilylated Silica Nanoparticles |
| title_short | The Dimensional Effect in Trimethylsilylated Silica Nanoparticles |
| title_sort | dimensional effect in trimethylsilylated silica nanoparticles |
| topic | Silica Siloxane bond Silanols Trimethylsilyl groups Trimethyloxysilan |
| url | http://jnep.sumdu.edu.ua:8080/download/numbers/2017/5/articles/Proof_JNEP_05030.pdf |
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