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公开(公告)号：US10941243B2
公开(公告)日：2021-03-09
申请号：US16341260
申请日：2017-10-09
Inventor： Benzhong Tang , Zijie Qiu
Abstract: A method is directed to synthesis of poly(triphenylacrylonitrite)s (PTPANs) comprising polycoupling dibromoarenes, internal diynes, and potassium ferrocyanide, resulting in polycoupled dibromoarenes, internal diynes, and potassium ferrocyanide; and producing poly(triphenylacrylonitrite)s (PTPANs) by catalysis of the polycoupled dibromoarenes, internal diynes, and potassium ferrocyanide with palladium acetate and sodium bicarbonate, wherein the catalysis is allowed to proceed in dimethylacetamide under nitrogen at a prescribed temperature for a prescribed time. Further, poly(triphenylacrylonitrite)s (PTPANs) is a polymer and comprises a backbone structure of wherein x and y are integers; wherein each R is independently selected from the group consisting of and wherein each R′ is independently selected from the group consisting of
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2.发明授权公开(公告)号：US11275002B2
公开(公告)日：2022-03-15
申请号：US16492942
申请日：2018-04-26
Inventor： Zhe Zhang , Benzhong Tang , Xu Chen , Zijie Qiu , Weijun Zhao
Abstract: The present invention discloses a method for detecting the mechanical response of a mechanical component by an organic mechanoresponsive fluorescent material, comprising the following steps of: selecting an organic mechanoresponsive fluorescent material; preparing an organic mechanoresponsive fluorescent material solution; forming a film on a metal surface; calibrating fluorescence intensity and obtaining the fluorescence intensity and distribution in a crack tip area; observing the fluorescence signal generated at cracks to monitor the occurrence of fatigue cracks, and predict a propagation pathway of fatigue cracks by using the fluorescence intensity distribution in the crack tip area.
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