Study on the Preparation and Properties of Oxime Sulfonates Photoacid Generator

doi:10.7517/j.issn.1674-0475.2013.04.007

Abstract

Abstract:

A new class of oxime sulfonates type photo-acid generators (PAGs) which are non-ionic and halogen-free was reported here. The structures of the four PAGs were characterized by ¹HNMR and their thermal stability, UV absorption properties, and acid generation efficiency were investigated in detail. The results showed that the all four PAGs displayed excellent absorption at the DUV region of 248 nm as well as the region of 350—450 nm. Exposure at 420 nm, P-2 exhibited the highest acid-forming performance with the efficiency up to 0.96. P-1 showed high acid productivity when exposed at both 365 and 420 nm. The photo-polymerization kinetics of vinyl ether initiating by the four PAGs with the same concentration were monitored by real-time infrared spectroscopy (RT-IR). At the same time, the influence of the concentration of photo-acid generator on photo-polymerization was also discussed. The RT-IR results indicated that the double bond conversion (DC%) rate of vinyl ether could reach 80% upon exposure of 30 s with a concentration of 2% for the four photo-acid generators.

Key words: non-ionic photo-acid generator, oxime sulfonates, acid-productivity, RT-IR

CLC Number:

XIE Xiao-yan, PANG Yu-lian, XIAO Shi-zhuo, YANG Li, ZOU Ying-quan, CHEN Ping, ZHOU Shu-yun. Study on the Preparation and Properties of Oxime Sulfonates Photoacid Generator[J]. Imaging Science and Photochemistry, 2013, 31(4): 305-315.

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