Novel polymeric platform produced by photodegradation-induced rearrangement for a multifunctional negative photoresist |
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Authors: | Gang Yu Qian Xu Zhiyou Lei Yanbing Lu Weijian Xu Ruoxi Wu |
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Institution: | 1. College of Chemistry and Chemical Engineering, Hunan University, Changsha, People's Republic of China;2. Department of Water Science and Engineering, College of Civil Engineering, Hunan University, Changsha, People's Republic of China |
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Abstract: | Herein, a series of polymers containing the photosensitive 2-dinitro-benzenemethanol carbonate (DNBC) was developed by click polymerization. Due to the unique photochemical cleavage recombination behavior of DNBC, these polymers were used as negative photoresists to create micropatterns. Furthermore, the photochemical behaviors of DNBC were studied by nuclear magnetic resonance (NMR) and high performance liquid chromatography (HPLC). According the results, we speculated that the photochemical reaction of DNBC involved an initial chemical bond-breaking process and a subsequent recombination process. Importantly, by extending the aldehyde to a branched-chain structure, reactive patterns were developed by film preparation. Clickable amine functional molecules could be grafted upon the substrates by surface modification. Surface modification of reactive patterns with fluorescent amines gave a multifunctional pattern with tunable properties confirmed by scanning electron microscopy (SEM) and confocal fluorescence microscopy. |
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Keywords: | click polymerization negative photoresist reactive patterns surface modification |
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