A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Veeraiah, M. K.
- Studies on Copoly (N-Vinylpyrrolidone – Acrylic acid) – As an Antimicrobial
Authors
1 Department of Chemistry, Sri Siddhartha Institute of Technology, Tumkur, Karnataka, IN
2 Sri Siddhartha Institute of Technology, Tumkur, Karnataka, IN
3 Department of Chemistry, Govt. First Grade College, Koratagere, Tumkur, Karnataka, IN
4 Department of Bio-Technology, Siddaganga Institute of Technology, Tumkur, Karnataka, IN
Source
International Journal of Innovative Research and Development, Vol 5, No 11Sp (2016), Pagination: 7-12Abstract
Copolymer of N-vinylpyrrolidone (NVP) and Acrylic acid (AA) was prepared by using hydrogen peroxide as initiator in Tetrahydrofuran medium at 450C under inert atmosphere. The copolymer (B) prepared was made to react with N, N – Diethylaminoethanol (DEAE) to form an ester (EB) through acid group of acrylic acid. Synthesized copolymer and its graft were characterized by FTIR, H1NMR and C13NMR. The antimicrobial property of these compounds was investigated by agar well diffusion method. Two grams +ve bacterial strains used were Bacillus pumillus – 1640 and Staphylococcus aureus – 3160, two grams –ve bacterial strains were Escherichia coli – 45 and Enterobacteraerogenes – 2822. The fungal strains used were Fusariumoxysporum – 2087 and Aspergillusniger – 4325.
Keywords
N-Vinylpyrrolidone, Acrylic Acid, FTIR, H1NMR, C13NMR, Anti-Microbial Activity.Full Text
- Phase Behavior of Blends of Poly (Ethylene Glycol) with MMA/EOEMA Copolymer
Authors
1 Sri Krishna Institute of Technology, Bangalore, Karnataka, IN
2 Sri Siddhartha Institute of Technology, Tumkur, Karnataka, IN
Source
International Journal of Innovative Research and Development, Vol 5, No 11Sp (2016), Pagination: 108-112Abstract
The phase behavior of Poly Ethylene Glycol (PEG) with Methyl Methacrylate and 2-Ethoxy Ethylmethacrylate (MMA/EOEMA) copolymer was investigated using viscometric, FT-IR, DSC thermal analysis and surface morphology studies. The studies were carried out at various blend compositions with chloroform as common solvent. From the viscosity data based on sign convention involved in the criterion, the values of μ and α for PEG with copolymer blends system was computed and found to be partially positive indicating it is partially phase separation for all blends composition. The phase separations of the blends were also supported by DSC thermal analysis method. The properties of specific, intermolecular and hydrogen bonding interactions of PEG with copolymer blends are studied by spectroscopic techniques such as FT-IR and the obtained results were further confirmed by surface morphology studies. The phase separation behaviour of the copolymers with PEG blend is clearly visible from the Scanning Electron Microscopy patterns.
Keywords
MMA/EOEMA Copolymer, PEG, Blends Miscibility, Compatibility, Phase Behavior.Full Text