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Lightly branched comb polyesters: application in fast drying solvent-borne coating formulations

journal contribution
posted on 2023-06-09, 12:49 authored by Ge Cheng, Barnaby GreenlandBarnaby Greenland, Chris Lampard, Neal Williams, Malkit S Bahra, Wayne Hayes
Novel oxazoline-based comb-polymers possessing linoleyl or oleic side chains have been synthesized and used to produce low viscosity coatings. Inclusion of the polymers in model paint formulations results in coatings that exhibit faster drying times than commercially available alkyd resin formulations. The comb polymers were produced from diol substituted oxazoline monomers that were synthesized through a scalable, solvent free protocol and purified by simple recrystallisation. Co-polymerisation of the oxazo- lines with adipic acid at 160 °C in the bulk resulted in the targeted polyester comb type polymers. The polymers were soluble in a range of organic solvents and compatible with commercial alkyd resins. Model paint formulations containing up to 40 wt% of the linoleyl-based comb polymers exhibited a dramatic reduction in viscosity (from 35 to 13 Poise at 25 °C) with increasing quantities of polymer added. Dynamic mechanical analysis (DMA) studies revealed that the drying rate of the model paint for- mulations containing the comb polymers was enhanced when compared with that of commercial alkyd resins.

History

Publication status

  • Published

File Version

  • Published version

Journal

Reactive and Functional Polymers

ISSN

1381-5148

Publisher

Elsevier

Volume

73

Page range

619-623

Department affiliated with

  • Chemistry Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2018-04-11

First Compliant Deposit (FCD) Date

2018-04-11

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