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EnglishThe synthesis and characterization of four methacrylate copolymers obtained by radical addition polymerization of methyl methacrylate as well as a new methacrylate azophenylbenzoxazole chromophore in percentages of 10, 30, 50, and 70% were explored. The copolymers were amorphous and showed glass-transition temperatures ranging from132 to 146 °C. High-quality polymer films were easily obtained by spin coating from N-methylpyrrolidone solutions. Polymer films spun cast on iridium tin oxide (ITO) substrates were used in the electro-optic (EO) experiments to evaluate the EO coefficients r33 using the reflection technique. The measured values fell in the range of 1.7–3.7 pm/V (laser incident wavelength of 1.552 mm) depending on the percentage of chromophore in the polymer.
| Titolo: | Synthesis and electrooptic properties of side chain methacrylate polymers containing a new azophenylbenzoxazole chromophore |
| Autori: | |
| Data di pubblicazione: | 2001 |
| Rivista: | |
| Abstract: | The synthesis and characterization of four methacrylate copolymers obtained by radical addition polymerization of methyl methacrylate as well as a new methacrylate azophenylbenzoxazole chromophore in percentages of 10, 30, 50, and 70% were explored. The copolymers were amorphous and showed glass-transition temperatures ranging from132 to 146 °C. High-quality polymer films were easily obtained by spin coating from N-methylpyrrolidone solutions. Polymer films spun cast on iridium tin oxide (ITO) substrates were used in the electro-optic (EO) experiments to evaluate the EO coefficients r33 using the reflection technique. The measured values fell in the range of 1.7–3.7 pm/V (laser incident wavelength of 1.552 mm) depending on the percentage of chromophore in the polymer. |
| Handle: | http://hdl.handle.net/11386/1129034 |
| Appare nelle tipologie: | 1.1.2 Articolo su rivista con ISSN |
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