A photodegradable triazene polymer

Abstract

The invention belongs to the technical field of the laser-induced forward transfer, and particularly relates to a novel photolytic triazene polymer. The provided triazene polymer has the novel structure, and is photolytic. The light absorption peak wave length thereof is more than 380 nm. The damage to cells caused by an ultraviolet source can be effectively avoided, and the potential requirement of applying the laser-induced forward transfer technology to the biomedical science experimental research can be satisfied. In addition, the triazene polymer has high purity and good solubility, can be decomposed into small pieces during the photolysis process, and decomposed into a gaseous product in the melting plume. The cellular layer cannot be polluted, and a solid melting product kept on the surface of the cellular layer can be taken away. An additional cleaning step is not needed.

Description

technical field

[0001] The invention belongs to the technical field of laser-induced forward transfer, in particular to a novel photolyzable triazene polymer. Background technique

[0002] Laser-induced forward transfer technology (LIFT) uses a high-energy beam laser to focus through a transparent substrate to the vicinity of the material film. Through the action of a strong light field near the focus, the material film flies away from the substrate and attaches to the surface of the receptor to achieve the deposition of the film material. The material of the deposited layer is often damaged due to the thermal load of the laser. Therefore, it is necessary to set an intermediate layer between the transparent substrate and the deposition layer to absorb the laser light, and this intermediate layer is called a sacrificial layer (DRL).

[0003] At present, the materials used for the sacrificial layer mainly include metals such as titanium and gold, and triazene polymers. There...

Images