Weathering and photostability of benzoylated wood

摘要

Chemical modification shows promise as a means of protecting wood from deterioration by fungi, but the systems tested to date have shown limited ability to photostabilise wood. In thisstudy wood was esterified with benzoyl choride and the photostability of the modified wood was assessed. Benzoyl chloride was cohsen because it was thought that the introduction of benzoyl groups into wood might act as a UV screen protecting wood fromphotodegradation. Benzoylation of wood to high weight gains (～70/100) was effective at protecting wood from photodegradation and there was an inverse relationship between weight gains due to benzoylation and mass losses of modified Scots pine wood veneers during weathering.