OJAppSOpen Journal of Applied Sciences2165-3917Scientific Research Publishing10.4236/ojapps.2014.41003OJAppS-42194ArticlesBiomedical&Life Sciences Chemistry&Materials Science Computer Science&Communications Engineering Physics&Mathematics The Synthesis of Diaminoanthraquinone Coloured Cross Linked Epoxy Resins and Their Application in Paint and Selected Polymers wahruddeenMuhammad Salisu1MohammedKabir Yakubu2*PeterObinna Nkeonye2HamzaAbba3Department of Chemistry, Ahmad Bello University, Zaria, NigeriaDepartment of Textile Science and Technology, Ahmadu Bello University, Zaria, NigeriaNational Research Institute for Chemical Technology (NARICT), Zaria, Nigeria* E-mail:koko80001@yahoo.com(MKY);10012014040113211 October 20139 November 2013 20 November 2013© Copyright 2014 by authors and Scientific Research Publishing Inc. 2014This work is licensed under the Creative Commons Attribution International License (CC BY). http://creativecommons.org/licenses/by/4.0/

Novel polymeric pigments were synthesized in xylene by cross link ed epoxy resin with 1,4 and 1,5-diaminoanthraquinones, by varying weight fractions from 5% to 20% of the diaminoanthraquinone derivatives. FTIR, UV and solubility tests were carried out. The pigments were then used to colour PLA, PMMA, PE and also in emulsion paints using polyvinyl alcohol as binder. Their light fastness, surface drying time and surface hardening time were assessed. It was found that λmax of the 1,4-diaminoanthraquinone shifted towards longer wavelength after the cross linkage, in contrast to the 1,5-diaminoanthraquinone which suffered a blue shift. However in all the cases, the λmax was not affected by the weight fractions of the anthraquinones, but the absorptivity coefficients was significantly increased as the weight fractions of the anthraquinones increased. The light fastness properties of the coloured plastics varied from 4 to 7 , indicating a trend of increase with the weight fractions of the anthraquinones. Similar observations were seen with the emulsion paints produced . In all the cases, the 1,4-diaminoanthraqunione produc ed better result.

Epoxy Resin; Diaminoanthraquinone Derivatives; Chromophore; PigmentsNOTES

*Corresponding author.

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