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Title: Competence of single and DI Site phase transfer catalysts in the radical polymerization of ALKYL methacrylates a kinetic study
Researcher: Meena M
Guide(s): Umapathy M J
Keywords: Butyl methacrylate
Ethyl methacrylate
Glycidyl methacrylate
Methyl methacrylate
phase transfer catalyst
Upload Date: 8-Dec-2014
University: Anna University
Completed Date: 01/09/2010
Abstract: The problem of bringing together two substances which are newlinemarkedly having different polarities has been a challenge to chemical newlinecommunity The conventional and traditional solution was employing dipolar newlineaprotic solvents like dimethyl sulfoxide and N N dimethylformamide etc But newlinethese solvents are expensive toxic and less volatile Hence in terms of newlineenvironmental aspect the better organic solvents are becoming less newlineacceptable in the present scenario Another more elegant and fascinating newlinesolution to this problem is incorporating a unique catalyst called as phase newlinetransfer catalyst PTC which allows the substrates to come together without newlinethe need for a mutual solvent It can be defined as the substance which newlineincreases the rate of reaction between substrates present in different phases newlineThus phase transfer technique has emerged as an efficient eco friendly newlinemethodology for performing reactions involving lipophilic and hydrophilic newlinereactants In the present investigation two new phase transfer catalysts a newlinesingle site PTC PTC I and a di site PTC PTC II have been synthesized, newlinecharacterized and were used for the polymerization of alkyl methacrylate newlinemonomers such as methyl methacrylate MMA ethyl methacrylate EMA newlinebutyl methacrylate BMA and glycidyl methacrylate GMA by free radical newlinepolymerization The polymerization of the monomers were carried out under newlineinert and unstirred condition at 60 C in ethyl acetate water biphase media newlineusing potassium peroxydisulphate as water soluble initiator newline newline newline newline
Pagination: xxxiv, 211p.
Appears in Departments:Faculty of Science and Humanities

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04_acknowledgement.pdf20.28 kBAdobe PDFView/Open
05_content.pdf80.66 kBAdobe PDFView/Open
06_chapter1.pdf355.24 kBAdobe PDFView/Open
07_chapter2.pdf49.96 kBAdobe PDFView/Open
08_chapter3.pdf1.46 MBAdobe PDFView/Open
09_chapter4.pdf38.06 kBAdobe PDFView/Open
10_reference.pdf58.3 kBAdobe PDFView/Open
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12_vitae.pdf16.29 kBAdobe PDFView/Open

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