Photo Polymerization of Host-Guest Complexes of Β- Cyclodextrin / Butyl Acrylate in Aqueous Solution, Kinetics And Mechanism
Journal Title: IOSR Journals (IOSR Journal of Computer Engineering) - Year 2016, Vol 18, Issue 2
Abstract
Abstract: The Photo polymerization of β-cyclodextrin host–guest complexes of Butyl acrylate sensitized by Fluoroscein sodium in homogeneous aqueous medium has been studied. The polymerization was carried out in presence of citrate – phosphate buffer and ascorbic acid medium, leading to the formation of poly (Butyl acrylate). The effect of change of monomer concentration, dye concentration, time and temperature, on the rate of polymerization was studied. The system was irradiated with UV-light of 365 nm wavelength. The rate ofpolymerization was measured gravimetrically and molecular mass of polymer by viscometric method. The polymerization was also carried out with uncomplexed monomer and in the presence of organic solvents. Therate of polymerization, the viscosity and the molecular mass of polymer obtained from β-cyclodextrin complexed monomer was found to be higher in comparison to the polymer obtained from uncomplexed monomer. Thermaldegradation pattern of the polymer sample was studied by thermo gravimetric analysis. The mechanism of polymerization and kinetic scheme proposed was examined in the light of the experimental results.
Authors and Affiliations
Indu Bhusan Mohanty , Snehalata. Mishra
Keywords
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