Novel Nanocomposite Optical Plastics: Dispersion of Titanium in Polyacrylates
Polyacrylates have become the preferred materials for optical applications replacing the conventionally used glass due to their superior optical clarity. The major disadvantage with polyacrylates is their low (1.40–1.50) refractive index besides their poor impact resistance. The improvements in refr...
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| Format: | Article |
| Language: | English |
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Wiley
2010-01-01
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| Series: | Journal of Nanotechnology |
| Online Access: | http://dx.doi.org/10.1155/2010/531284 |
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| author | Gunjan Suri Mukti Tyagi Geetha Seshadri Gurcharan Lal Verma Rakesh Kumar Khandal |
| author_facet | Gunjan Suri Mukti Tyagi Geetha Seshadri Gurcharan Lal Verma Rakesh Kumar Khandal |
| author_sort | Gunjan Suri |
| collection | DOAJ |
| description | Polyacrylates have become the preferred materials for optical applications replacing the conventionally used glass due to their superior optical clarity. The major disadvantage with polyacrylates is their low (1.40–1.50) refractive index besides their poor impact resistance. The improvements in refractive index as well as mechanical properties can be achieved by way of incorporation of metals or metal compounds in the matrix. A novel methodology for the incorporation of high refractive index metals into low refractive index polymeric materials to improve the refractive index and impact resistance of the latter has been developed. With the in-situ formation of nanoparticles of TiO2, the refractive index of polyacrylates improved from 1.45 to 1.53 and the Abbe number increased from 40 to 57. One of the interesting dimension of this study pertains to the possibility of tailor-making of the two key optical properties of materials by way of varying the amount of TiO2 being formed in-situ. Thermal stability and impact resistance of nano dispersed (4.3% by wt. of Ti) polyacrylates are found to be better than the neat polyacrylates. Moreover, TiO2-containing polyacrylate is of light weight. TEM, SEM, and IR analysis confirms the in-situ formation of nanoparticles of TiO2. Gamma irradiation has been used as an eco-friendly technique for polymerization. The developed compositions can be cast polymerized into clear and bubble free material for optical applications. |
| format | Article |
| id | doaj-art-0c5d70d1c312439c9d18d57ab1e98e9c |
| institution | Kabale University |
| issn | 1687-9503 1687-9511 |
| language | English |
| publishDate | 2010-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Nanotechnology |
| spelling | doaj-art-0c5d70d1c312439c9d18d57ab1e98e9c2025-02-03T01:27:10ZengWileyJournal of Nanotechnology1687-95031687-95112010-01-01201010.1155/2010/531284531284Novel Nanocomposite Optical Plastics: Dispersion of Titanium in PolyacrylatesGunjan Suri0Mukti Tyagi1Geetha Seshadri2Gurcharan Lal Verma3Rakesh Kumar Khandal4Shriram Institute for Industrial Research, 19, University Road, Delhi 110007, IndiaShriram Institute for Industrial Research, 19, University Road, Delhi 110007, IndiaShriram Institute for Industrial Research, 19, University Road, Delhi 110007, IndiaDepartment of Chemistry, Delhi College of Engineering, Bawana Road, Delhi 110042, IndiaShriram Institute for Industrial Research, 19, University Road, Delhi 110007, IndiaPolyacrylates have become the preferred materials for optical applications replacing the conventionally used glass due to their superior optical clarity. The major disadvantage with polyacrylates is their low (1.40–1.50) refractive index besides their poor impact resistance. The improvements in refractive index as well as mechanical properties can be achieved by way of incorporation of metals or metal compounds in the matrix. A novel methodology for the incorporation of high refractive index metals into low refractive index polymeric materials to improve the refractive index and impact resistance of the latter has been developed. With the in-situ formation of nanoparticles of TiO2, the refractive index of polyacrylates improved from 1.45 to 1.53 and the Abbe number increased from 40 to 57. One of the interesting dimension of this study pertains to the possibility of tailor-making of the two key optical properties of materials by way of varying the amount of TiO2 being formed in-situ. Thermal stability and impact resistance of nano dispersed (4.3% by wt. of Ti) polyacrylates are found to be better than the neat polyacrylates. Moreover, TiO2-containing polyacrylate is of light weight. TEM, SEM, and IR analysis confirms the in-situ formation of nanoparticles of TiO2. Gamma irradiation has been used as an eco-friendly technique for polymerization. The developed compositions can be cast polymerized into clear and bubble free material for optical applications.http://dx.doi.org/10.1155/2010/531284 |
| spellingShingle | Gunjan Suri Mukti Tyagi Geetha Seshadri Gurcharan Lal Verma Rakesh Kumar Khandal Novel Nanocomposite Optical Plastics: Dispersion of Titanium in Polyacrylates Journal of Nanotechnology |
| title | Novel Nanocomposite Optical Plastics: Dispersion of Titanium in Polyacrylates |
| title_full | Novel Nanocomposite Optical Plastics: Dispersion of Titanium in Polyacrylates |
| title_fullStr | Novel Nanocomposite Optical Plastics: Dispersion of Titanium in Polyacrylates |
| title_full_unstemmed | Novel Nanocomposite Optical Plastics: Dispersion of Titanium in Polyacrylates |
| title_short | Novel Nanocomposite Optical Plastics: Dispersion of Titanium in Polyacrylates |
| title_sort | novel nanocomposite optical plastics dispersion of titanium in polyacrylates |
| url | http://dx.doi.org/10.1155/2010/531284 |
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