Effect of Magnetite Nano Particles on p-n-Alkyl Benzoic Acid Mesogens
The magnetite (Fe3O4) nanoparticles (0.5 wt%) of size less than 20 nm doped in p-n-alkyl benzoic acids where n varies from heptyl (7) to nonyl (9) are prepared and the presence of Fe+3 is confirmed through UV-Visible spectrophotometer. Textural and phase transition temperature studies are carried o...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2012-01-01
|
| Series: | E-Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2012/878049 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832550524858138624 |
|---|---|
| author | S. Sreehari Sastry S. Salma Begum T. Vindhya Kumari V. R. K. Murthy Sie Tiong Ha |
| author_facet | S. Sreehari Sastry S. Salma Begum T. Vindhya Kumari V. R. K. Murthy Sie Tiong Ha |
| author_sort | S. Sreehari Sastry |
| collection | DOAJ |
| description | The magnetite (Fe3O4) nanoparticles (0.5 wt%) of size less than 20 nm doped in p-n-alkyl benzoic acids where n varies from heptyl (7) to nonyl (9) are prepared and the presence of Fe+3 is confirmed through UV-Visible spectrophotometer. Textural and phase transition temperature studies are carried out using polarizing optical microscopy on pure and nano doped p-n-alkyl benzoic acids. These results are further confirmed by DSC at a scan rate of 5ºC/min and dielectric studies. Dielectric studies are carried out, in which the variation of dielectric constant, loss and the conductivity are analyzed with respect to temperatures and frequencies. Increment of relaxation times for nano doped heptyl and nonyl benzoic acids are observed which implies that the dielectric nature is strengthened for the nano doped mesogens. The preference of nano doped p-n-alkyl benzoic acids is discussed. |
| format | Article |
| id | doaj-art-e2dfc950d24c411c95170822c9196e29 |
| institution | Kabale University |
| issn | 0973-4945 2090-9810 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | E-Journal of Chemistry |
| spelling | doaj-art-e2dfc950d24c411c95170822c9196e292025-02-03T06:06:36ZengWileyE-Journal of Chemistry0973-49452090-98102012-01-01942462247110.1155/2012/878049Effect of Magnetite Nano Particles on p-n-Alkyl Benzoic Acid MesogensS. Sreehari Sastry0S. Salma Begum1T. Vindhya Kumari2V. R. K. Murthy3Sie Tiong Ha4Physics Department, Acharya Nagarjuna University, Nagarjunanagar-522 510, IndiaPhysics Department, Indian Institute of Technology, Chennai-600 036, IndiaPhysics Department, Indian Institute of Technology, Chennai-600 036, IndiaPhysics Department, Indian Institute of Technology, Chennai-600 036, IndiaDepartment of Chemical Science, Universiti Tunku Abdul Rahman, Jalan University, Bandar Barat, Kampar 31900, Perak, MalaysiaThe magnetite (Fe3O4) nanoparticles (0.5 wt%) of size less than 20 nm doped in p-n-alkyl benzoic acids where n varies from heptyl (7) to nonyl (9) are prepared and the presence of Fe+3 is confirmed through UV-Visible spectrophotometer. Textural and phase transition temperature studies are carried out using polarizing optical microscopy on pure and nano doped p-n-alkyl benzoic acids. These results are further confirmed by DSC at a scan rate of 5ºC/min and dielectric studies. Dielectric studies are carried out, in which the variation of dielectric constant, loss and the conductivity are analyzed with respect to temperatures and frequencies. Increment of relaxation times for nano doped heptyl and nonyl benzoic acids are observed which implies that the dielectric nature is strengthened for the nano doped mesogens. The preference of nano doped p-n-alkyl benzoic acids is discussed.http://dx.doi.org/10.1155/2012/878049 |
| spellingShingle | S. Sreehari Sastry S. Salma Begum T. Vindhya Kumari V. R. K. Murthy Sie Tiong Ha Effect of Magnetite Nano Particles on p-n-Alkyl Benzoic Acid Mesogens E-Journal of Chemistry |
| title | Effect of Magnetite Nano Particles on p-n-Alkyl Benzoic Acid Mesogens |
| title_full | Effect of Magnetite Nano Particles on p-n-Alkyl Benzoic Acid Mesogens |
| title_fullStr | Effect of Magnetite Nano Particles on p-n-Alkyl Benzoic Acid Mesogens |
| title_full_unstemmed | Effect of Magnetite Nano Particles on p-n-Alkyl Benzoic Acid Mesogens |
| title_short | Effect of Magnetite Nano Particles on p-n-Alkyl Benzoic Acid Mesogens |
| title_sort | effect of magnetite nano particles on p n alkyl benzoic acid mesogens |
| url | http://dx.doi.org/10.1155/2012/878049 |
| work_keys_str_mv | AT ssreeharisastry effectofmagnetitenanoparticlesonpnalkylbenzoicacidmesogens AT ssalmabegum effectofmagnetitenanoparticlesonpnalkylbenzoicacidmesogens AT tvindhyakumari effectofmagnetitenanoparticlesonpnalkylbenzoicacidmesogens AT vrkmurthy effectofmagnetitenanoparticlesonpnalkylbenzoicacidmesogens AT sietiongha effectofmagnetitenanoparticlesonpnalkylbenzoicacidmesogens |