Dialkyldimethylammonium halides as wood preservatives

摘要: Laboratory decay tests using brown, white and soft rot fungi on wood treated with a series of dialkyldimethylammonium halides show that maximum fungitoxicity is exhibited by compounds alkyl chains 10 12 carbon atoms. Both the cation anion appear to influence effectiveness bromide salts showing greater activity values than chloride analogs. The presumably influences through distribution, fixation, availability rather directly changes in fungitoxicity. Monobromination one caused decrease fungitoxicity, though chain length-fungitoxicity relationship was same as for unsubstituted compounds. Addition certain copper or organic biocides alkylammonium compound formulations increased activity, particularly against rot. While this result significant advance, complex relationships involved such will demand considerable further research respect efficacy, leaching, treatability, environmental aspects before product could be commercialized.