Doubly Renewable Cellulose Polymer for Water‐Based Coatings

Tristram, Cameron J.; Mason, Jennifer M.; Williams, D. Bradley G.; Hinkley, Simon F.R.

doi:10.1002/cssc.201402906

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“…Given our interest in the production of renewable film-forming polymers [20][21][22] we investigated the properties of films of these polyhydrazone mixtures. Films were cast of all polymers that had formed clear solutions in aqueous media (Table 4), and these were dried overnight in an oven at 60 °C.…”

Section: Films From Polyacylhydrazonesmentioning

confidence: 99%

“…4,6,18,19 We have been interested for some time in the production of waterborne coatings with improved environmental footprints over their petrochemical-derived counterparts. [20][21][22] Accordingly, we have chosen monomers for the present study which are not only largely renewable but also soluble in aqueous systems. Our vision was to develop sufficient understanding of the behaviour of the polyhydrazones in aqueous media to allow us to successfully incorporate them into various commercial coatings.…”

Section: Introductionmentioning

confidence: 99%

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Linear and macrocyclic water soluble polyacylhydrazones and their utilisation in coatings

Daines

Robinson

Glenny³

et al. 2018

Progress in Organic Coatings

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Water soluble polyacylhydrazones have been generated that contain a high proportion of renewable materials. The polyacylhydrazones were found to be present simultaneously as linear and macrocyclic species, the latter being favoured at higher concentrations and in certain combinations of levulinoyl ester/acyldihydrazide. Levulinoyl esters with multiple ketone reactive sites were targeted as building blocks for the backbone. Reaction of these species in aqueous media with commercially available acyldihydrazides afforded a series of high solids-content water soluble polyacylhydrazone solutions. Evaporation of the water from the solutions reproducibly generated films with differing and useful characteristics. One of the polyhydrazones was successfully formulated into two different types of resin bases of commercial coating systems, producing paint products with renewable content. Supporting Information. Proton, carbon and 2D-NMR spectra for key di-and tri-levulinoyl esters and mono-and diacylhydrazones. This material is available free of charge via the Internet at http://pubs.acs.org.

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Section: Films From Polyacylhydrazonesmentioning

confidence: 99%