Five derivatives of diacetyl monooxime ester were synthesised by the reaction of diacetyl monooxime and corresponding acyl halides and used as photoinitiators. The relative photodecomposition efficiency by irradiation at 254nm UV light was decreased in the order of p-t-butylbenzoyl>p-methoxy benzoyl> benzoyl> dimethoxybenzoyl>acetyl derivatives and the photopolymerization tendency with MMA monomer was decreased in the order of benzoy1>dimethoxybenzoyl>p-t-butylbenzoy1>p-methoxy benzoyl>acetyl derivatives. The photopolymerization efficiency of these derivatives was superior or similar to that of the general photoinitiators such as benzoin, benzoyl peroxide and diacetyl. Molecular weight distribution of the polymers obtained by these photoinitiators was similar to that of the properties of typical radical photopolymerization.

Diacetyl monooxime에 광분해 효율을 증가시킬 수 있는 5종의 치환기를 도입하여 diacetyl monooxime ester를 합성하고 광분해 효율과 광중합 효율을 비교하였다. 이 유도체들에 254nm의 자외선을 쪼였을 때, p-t-butylbenzoyl>p-methoxybensoyl>benzoyl>dimethoxybenzoyl>acetyl기가 치환되었을 때의 순서로 광분해가 잘 일어났고 benzoyl>dimethoxybenzoyl>p-t-butylbenzoyl>p-methoxybenzoyl>acetyl기가 치환되었을 때의 순서로 광중합 반응이 잘 일어났다. 이 유도체들에 의한 광중합 반응은 benzoin, benzoyl peroxide, diacetyl과 같은 기존의 광개시제와 비교하였을 때 유사 또는 우수하였으며 전형적인 라디칼 중합반응에 의한 분자량 특성 및 분포를 보였다.

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