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Licensed Unlicensed Requires Authentication Published by De Gruyter February 28, 2008

Synthesis of ethylene maleic anhydride copolymer containing fungicides and evaluation of their effect for wood decay resistance

  • George C. Chen
From the journal Holzforschung


The aim of the present study was to combat wood decay based on the approach controlled-release biocides from polymers. The possibility of introducing polymer-bonded fungicides into the cell lumens was investigated. The synthesis of ethylene maleic anhydride copolymer containing pentachlorophenol (penta) and 8-hydroxy quinoline (8HQ) in N, N dimethyl formamide is described. It was demonstrated that the penta-bonded acrylate is a poly(ethylene co-dipentachlorophenyl diacrylate), which has a disubstituted pentachlorophenyl group linked through two acrylate ester bonds. The reaction of ethylene maleic anhydride copolymer with 8-hydroxy quinoline leads to products containing 44.8% poly(ethylene co-8-hydroxy quinolinyl acrylate) and 55.2% of unreacted poly(ethylene co-maleic anhydride). Wood impregnated with the polymers described prevented decay by a brown- and white-rot fungus, even after water leaching. Wood treated with the fungicide pentachlorophenol (penta) alone prevented only decay by a brown-rot fungus. An advantage is that high loading of penta in polymer can be achieved. Moreover, there is a slow-release effect on the active agent due to hydrolysis of ester bonds. The decay resistance of wood treated with poly(ethylene co-8-quinolinyl acrylate) was similar to that of wood impregnated with 8-hydroxy quinoline.

Corresponding author. Research Chemist USDA, Forest Service, Forest Products Laboratory, 1 Gifford Pinchot Dr., Madison, WI, USA Fax: +1-608-231-9262

Received: 2007-6-12
Accepted: 2008-1-31
Published Online: 2008-02-28
Published Online: 2008-02-28
Published in Print: 2008-07-01

©2008 by Walter de Gruyter Berlin New York

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