Nothdurft Philipp, Schauberger Jörg Guido, Riess Gisbert, Kern Wolfgang
Chair in Chemistry of Polymeric Materials, Montanuniversitaet Leoben, Otto-Glöckel-Straße 2, A-8700 Leoben, Austria.
Polymers (Basel). 2019 Jan 18;11(1):169. doi: 10.3390/polym11010169.
Two different azosulphonate dyes were synthesised and purified for the preparation of a water-based photoreactive azosulphonate-doped poly(vinyl alcohol). The aim was the investigation of a novel azosulphonate-poly(vinyl alcohol) photoresist with decreased water solubility after illumination, setting a focus on environmentally benign substances. The electron distribution of the aromatic rings of the two different azosulphonate molecules were changed by the UV-induced cleavage of the ⁻N=N⁻SO₃ groups, which was evidenced by UV spectroscopy. The formation of ester groups was detected by Fourier-transform infrared and C nuclear magnetic resonance spectroscopy. UV⁻Vis spectroscopy was used to investigate the photoreactivity of the prepared films. Photolithographic experiments demonstrated the applicability of these newly produced materials as photoresist materials. In addition, these materials provide high thermal stability.
合成并纯化了两种不同的偶氮磺酸盐染料，用于制备水基光反应性偶氮磺酸盐掺杂的聚乙烯醇。目的是研究一种新型的偶氮磺酸盐 - 聚乙烯醇光刻胶，其在光照后水溶性降低，重点关注环境友好型物质。通过紫外光谱证实，紫外诱导的 -N=N-SO₃ 基团的裂解改变了两种不同偶氮磺酸盐分子芳环的电子分布。通过傅里叶变换红外光谱和碳核磁共振光谱检测到酯基的形成。利用紫外 - 可见光谱研究了制备薄膜的光反应性。光刻实验证明了这些新制备的材料作为光刻胶材料的适用性。此外，这些材料具有高热稳定性。
