Metal-Ylide Complex-Initiated Radical Copolymerization of Methylmethacrylate and Styrene |
| |
| Authors: | Urvi Bhatnagar A K Srivastava |
| |
| Institution: | Department of Chemistry , Harcourt Butler Technological Institute , Kanpur, 208002, India |
| |
| Abstract: | Abstract Phenacyl dimethylsulfonium ylide complex of mercuric chloride (PDSY-HgCl2)-initiated radical copolymerization of styrene with methylmethacrylate (MMA) at 85 ± 0.1°C using dioxane as an inert solvent yields random copolymers as evidenced by NMR spectroscopy. The kinetic equation for the present system was Rp α PDSY-HgCl2]0.5 Sty]1.0 MMA]1.0. The values of energy of activation (ΔE) and k2 p/k1 were 48.0 kJ mol?1 and 8.6 × 10?4 L mol?1 s?1, respectively. The mechanism of the reaction has also been proposed for the present system. The properties of copolymer were studied in the form of film. The film was highly absorptive for nitric acid but less absorptive for acetic acid. The film was water impermeable. |
| |
| Keywords: | |
|
|
