The Esterolytic activity of poly(N-alkylimidazoles). The effect of ester chain length in the substrate and alkyl chain length in the catalyst on the esterolytic activity of poly(N-alkylimidazoles).
dc.contributor.author | Overberger, C. | en_US |
dc.contributor.author | Smith, Thomas | en_US |
dc.date.accessioned | 2006-08-18T20:54:57Z | en_US |
dc.date.available | 2006-08-18T20:54:57Z | en_US |
dc.date.issued | 1975-07 | en_US |
dc.identifier.citation | Macromolecules 8N4 (1975) 407-415 | en_US |
dc.identifier.issn | 1520-5835 | en_US |
dc.identifier.uri | http://hdl.handle.net/1850/2346 | en_US |
dc.description.abstract | In an effort to exploit the enhancement in catalytic activity which might be derived through hydrophobic interactions between polymeric catalyst and substrate, 1-methyl-5-vinylimidazole (l-Me-5-VIm), l-methyl-4-vinylimidazole (l-Me-4-VIm), 1-butyl-5-vinylimidazole (l-Bu-5-VIm), and 1-butyl-4-vinylimidazole (1-Bu-4-VIm) have been synthesized and polymerized. In 28.5% ethanol-water, poly( 1-alkyl-5-vinylimidazoles) proved to be efficient catalysts for the hydrolysis of various 3-nitro-4-acyloxybenzoic acids (Sn-, where n denotes the acyl chain length). Order of magnitude rate enhancements, as compared to the model compound, 1,5-dimethylimidazole (1,5-DMIm), were observed in the poly(l-alkyl-5-vinylimidazole)-catalyzed solvolysis of S12- and S18-. Poly(1-Me-5-VIm) catalyzes the hydrolysis of S18- 88 times faster than does 1,5-DMIm. The poly(l-Me-5-VIm) catalyzed hydrolysis of S18- in ethanol-water was analyzed in terms of a simple Michaelis-Menten type mechanism. Vmax and Km were determined to be 40.2 X 10-7 M min-1 and 2.20 X 10-5 M, respectively. | en_US |
dc.format.extent | 31371 bytes | en_US |
dc.format.mimetype | application/pdf | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | American Chemical Society: Macromolecules | en_US |
dc.subject | Catalysis | en_US |
dc.subject | Esters | en_US |
dc.subject | Polymers | en_US |
dc.title | The Esterolytic activity of poly(N-alkylimidazoles). The effect of ester chain length in the substrate and alkyl chain length in the catalyst on the esterolytic activity of poly(N-alkylimidazoles). | en_US |
dc.type | Abstract | en_US |
dc.identifier.url | http://dx.doi.org/10.1021/ma60046a007 |
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