Recently, the photopolymer made of novolak resin as the base and the naphthoquinonediazide(NQD) as the photoreactive compound is used for the presensitized plate(PS plate). The reaction mechanism of the NQD-novolak resin on light exposure is considered. Upon exposure it undergoes a Wolff rearrangement, via ketene intermediate which react with water ti form an 3-indene carboxylic acid. It was also found that NQD type resin in this experiment shows a high relative sensitivity compared with imported sample from Japan.
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Abstract 1. 序論 2. 電解硏磨 實驗 2-1 시료 2-2 실험장치 및 방법 2-3 전해메칭후의 표면성상 측정 3. 實驗結果 및 考察 3-1 전해온도의 영향 3-2 전해액농도의 영향 3-3 전류밀도의 영향 4. 結論 參考文獻