On April 9, 2026, Cheng Zhengdi, a member of the National Academy of Engineering and an internationally renowned scientist in the field of polymer science, visited the Institute of New Concept Sensors and Molecular Materials at Shaanxi Normal University. Accompanied by Prof. Fang Yu, he toured the institute’s exhibition room and learned about its basic profile, development philosophy, research directions, technological strengths, research achievements, and strategic planning.

Subsequently, Academician Cheng Zhengdi delivered a lecture titled “Superlattice Engineering of Macromolecules in Soft Alloys” as a guest speaker at Shaanxi Normal University’s Chang’an Lecture Series. The lecture was co-chaired by Prof. Li Bingzhong, SNNU vice president, and Prof. Liu Chenghui, dean of the School of Chemistry and Chemical Engineering.

In his report, Cheng Zhengdi analyzed the key challenges in the development of traditional polymer materials from the perspective of the structure-property relationship between molecular functions and macroscopic characteristics, and elaborated on the core concepts of precision chemistry, precision physics, and precision processing. He highlighted the innovative application of the Molecular Lego strategy in the engineering of soft alloy macromolecular superlattices, discussed the construction pathways of F-K superlattice structures at the molecular level, revealed the evolutionary mechanisms of F-K phase behavior in soft matter, and interpreted the formation mechanisms of super-large-scale asymmetric superlattice structures.

During the Q&A session, faculty and students in attendance engaged in a discussion with Cheng Zhengdi on topics such as the design principles of soft matter materials. Prof. Fang Yu provided concluding remarks on the lecture, highly praising Academician Cheng’s significant contributions to the field of soft matter science and his valuable insights for the development of relevant disciplines and student education of the university. Over 200 faculty members and students, including Prof. Li Baoxin, Prof. Ding Liping, and Prof.Liu Feng from Xi’an Jiaotong University, attended the lecture.