Topic
Vinyl acetate
About: Vinyl acetate is a research topic. Over the lifetime, 15970 publications have been published within this topic receiving 162142 citations. The topic is also known as: Ethenyl acetate & Ethenyl ethanoate.
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05 Jan 1983TL;DR: In this article, a bag for storing liquids for medical purposes such as blood and liquids for parenteral administration and which has neutral physiological properties is made of polyolefin material that is more specially in the form of a polyethylene film for the body of the bag and a copolymer of ethylene and vinyl acetate, with more specially 20 to 32% by weight of Vinyl Acetate, as a material for the hose connector.
Abstract: A bag for storing liquids for medical purposes such as blood and liquids for parenteral administration and which has neutral physiological properties is made of polyolefin material that is more specially in the form of a polyethylene film for the body of the bag and a copolymer of ethylene and vinyl acetate, with more specially 20 to 32% by weight of vinyl acetate, as a material for the hose connector. The copolymer is welded to the material of the body of the bag and then cross linked.
77 citations
TL;DR: In this article, the effects of downstream pressure, plasma deposition conditions, feed composition, feed temperature, and size of the alcohols on the performance of the PVA-p-N4 membranes were studied.
77 citations
TL;DR: In this article, the authors investigated the improvement of the fire performance induced by incorporation of ethylene-butyl acrylate-maleic anhydride and ethylene vinyl acetate as interfacial agents of the polypropylene/ammonium polyphosphate/polyamide-6 blend.
77 citations
TL;DR: In this paper, PLLA was blended with poly(ethylene-co-vinyl acetate) (EVA) and the miscibility of the blend was investigated by DSC, polarizing optical microscopy and rheometry.
76 citations
TL;DR: In this article, a systematic screening and optimization of the reaction parameters, such as enzyme, ionic liquid and substrates concentrations with respect to the final product concentration, were performed, and enantioselectivity of immobilized CALB commercial preparation, Novozym 435, was assayed in several ionic liquids as reaction media.
Abstract: The kinetic resolution of racemates constitutes one major route to manufacture optically pure compounds. The enzymatic kinetic resolution of ( R , S )-1-phenylethanol over Candida antarctica lipase B (CALB) by using vinyl acetate as the acyl donor in the acylation reaction was chosen as model reaction. A systematic screening and optimization of the reaction parameters, such as enzyme, ionic liquid and substrates concentrations with respect to the final product concentration, were performed. The enantioselectivity of immobilized CALB commercial preparation, Novozym 435, was assayed in several ionic liquids as reaction media. In particular, three different ionic liquids: (i) 1-butyl-3-methylimidazolium hexafluorophosphate [bmim][PF 6 ], (ii) 1-butyl-3-methylimidazolium tetrafluoroborate [bmim][BF 4 ] and (iii) 1-ethyl-3-methylimidazolium triflimide [emim][NTf 2 ] were tested. At 6.6% (w/w) of Novozym 435, dispersed in 9.520 M of [bmim][PF 6 ] at 313.15 K, using an equimolar ratio of vinyl acetate/( R , S )-1-phenylethanol after 3 h of bioconversion, the highest possible conversion (50%) was reached with enantiomeric excess for substrate higher than 99%.
76 citations