Quaternised poly(4-vinylpyridine) anchored on a macroporous poly(trimethylolpropane trimethacrylate-methylmethacrylate) resin, as cocatalyst in the cobaltphthalocyanine catalysed oxidative coupling of 2-mercaptoethanol

Abstract

Quaternised poly(4-vinylpyridine) anchored on a macroporous poly(trimethylolpropane trimethacrylatemethylmethacrylate) resin, as cocatalyst in the cobaltphthalocyanine catalysed oxidative coupling of 2-mercaptoethanol Ratering, M.T.; Meuldijk, J.; Piet, P.; German, A.L. Please check the document version of this publication:• A submitted manuscript is the author's version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website.• The final author version and the galley proof are versions of the publication after peer review.• The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication Citation for published version (APA):Ratering, M. T., Meuldijk, J., Piet, P., & German, A. L. (1993). Quaternised poly(4-vinylpyridine) anchored on a macroporous poly(trimethylolpropane trimethacrylate-methylmethacrylate) resin, as cocatalyst in the cobaltphthalocyanine catalysed oxidative coupling of 2-mercaptoethanol. Reactive Polymers, Ion Exchangers, Sorbents, 19(3), 233-246. DOI: 10.1016/0923-1137(93)90081-P General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. Reactive Polymers, 19 (1993) (Received November 13, 1992; accepted January 5, 1993) AbstractImmobilisation of expensive homogeneous catalysts is important for their application in commercial processes. Quaternised poly(4-vinylpyridine), which is a good promotor of the cobalt(II)phthalocyanine-tetra(sodium sulphonate) catalysed oxidative coupling of 2-mercaptoethanol, has been anchored on a macroporous resin being prepared by copolymerisation of trimethylolpropane trimethacrylate and methyl methacrylate. The performance of the catalyst was only slightly lower than that of the homogeneous analogue. This remarkable result has been attributed to the large pores, which allow a post-copolymerisation of 4-vinylpyridine with the residual double bonds leading to a flexible and accessible polymeric cocatalyst.

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Lipase-Based Biocatalytic Flow Process in a Packed-Bed Microreactor

“…The mass-transfer coefficient ( k c ) at the liquid–solid interface is calculated using the correlation , from Ratering et al and references therein. k normalc ( d p + 2 δ ) D eff = [ 2 5.8 + true{ 0.61 ( ϵ 1 / 3 ( d p + 2 δ ) 4 / 3 ν ) 0.58 true( ν D eff true) 1 / 3 true} 5.8 ] 1 / 5.8 …”

“…The mass-transfer coefficient (k c ) at the liquid−solid interface is calculated using the correlation 7, from Ratering et al 38 and references therein. The catalyst efficiency (η) can be calculated from the theoretical relationship between (η), and the Thiele modulus.…”

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