During his decades as a professor, Cheng Rongshi worked tirelessly for education, teaching, research and books. To be a teacher, to do? Master? Good at it? Solve the problem for the class? Teaching students knowledge and skills; There are more things to do? Teacher? , to? Preach? For the sake of responsibility and mission, infect students with noble moral sentiments and personality charm, and stimulate students' yearning for truth, goodness and beauty. When he became an adult, his heart was attached to his home country, and he was full of enthusiasm for scientific truth and love for students. He is conscientious, a teacher by example, takes the lead in setting an example, and inspires everyone with noble morality, profound knowledge and unremitting enterprising spirit.
Study hard and often read the teacher's instructions.
1927, when Cheng Rong was born in Yixing, Jiangsu. 1937 when War of Resistance against Japanese Aggression broke out, Cheng Rongshi, who had not graduated from primary school, followed his family to live in exile. He clearly remembers that the family fled to Wuhu, Anhui Province by boat, and then traveled to Hankou, Changsha, Lingling and Yuanling until Sichuan. During his exile in Hunan and Sichuan, Cheng Rongshi studied in Hunan Yali Middle School and Chongqing Drama Student Tutorial School. 194 1 was admitted to the high school affiliated to Central University.
Suffering from the war for a long time, Cheng Rongshi cherished the hard-won learning opportunities even more. He is determined to use knowledge to support the construction of life and serve the country and strengthen the country. Cheng Rongshi 1944 was admitted to the National The National SouthWest Associated University, but was not admitted because of the Japanese invasion and sudden illness. 1945, Cheng Rongshi was admitted to the Chemistry Department of Jinling University (1952 merged into Nanjing University).
In my life, I am deeply fortunate to have met the guidance and help of my senior teachers at every critical stage, especially Dai Anbang, Zhang Longxiang and Qian Renyuan. They have had a great influence on me, and it is hard to say. ? The teacher's words and deeds impressed Cheng Rongshi and had a far-reaching impact on his later study, research and teaching.
Cover of Cheng Rongshi's Undergraduate Thesis
Before graduating from college, under the guidance of the famous inorganic chemist Dai Anbang, Cheng Rongshi started a project called? What is the viscosity of soybean dispersion? Graduation thesis. At that time, the conditions were simple, and many experimental equipment were not available. In order to help Cheng Rongshi do experiments, Dai Anbang cooked soybeans for Cheng Rongshi with a pressure cooker that he had just brought back from the United States, and tested the effects of different pressures and time on viscosity. Relying on these simple experimental equipment, Cheng Rongshi completed the first draft of the paper. Dai Anbang carefully revised every word of the paper, full of comments, deeply touched Cheng Rongshi.
When he was a graduate student in Peking University, Cheng Rongshi studied under biochemist Zhang Longxiang. He was particularly impressed by the tutor's work log, which recorded the detailed weather conditions on the day of the experiment, which made him very puzzled. Zhang Longxiang explained that chemistry, as an experimental science, needs accurate data, and the change of weather often affects the change of data, so it needs to be recorded clearly and referenced when analyzing and discussing data, and the truth is often hidden in the details. This rigorous scientific spirit has benefited Cheng Rongshi for life.
Climb the peak and make a breakthrough in scientific research
In the early 1950s, in order to meet the needs of the development of China's synthetic rubber industry, Qian Renyuan, a famous polymer physicist, was ordered to set up the first polymer physical chemistry research group in China. Cheng Rongshi, who just graduated, was sent to the Institute of Physics and Chemistry of Chinese Academy of Sciences and became one of the main participants. There are only four initial members of the group, and almost everything is blank. Under the leadership of Qian Renyuan, they faced up to difficulties, made various instruments and groped a little, and finally established a variety of experimental methods to determine the molecular weight and molecular weight distribution of polymers, which provided scientific basis for the selection of industrial cis-polybutadiene rubber and the optimization of polymerization conditions. This achievement won the 1985 national special prize for scientific and technological progress.
Cheng Rongshi was one of Qian Renyuan's earliest students and teaching assistants. Under the leadership of Qian Renyuan, he witnessed the development of polymer physics and polymer physical chemistry in China from scratch and from weak to strong. He said that he was honored and proud to follow Qian Renyuan in this process. Qian Renyuan's rigorous and realistic academic attitude, unconventional style of opening up new fields and indifferent to fame and fortune have a far-reaching influence on him. On the road of scientific research, Cheng Rongshi constantly seeks new breakthroughs. From the research on the characterization methods of polymer molecules, to the research on gel chromatography, and then to the improvement of the understanding of the basic problems of polymer condensed matter physics, Cheng Rongshi has been expanding in related fields, and is unique and at the forefront.
In view of molecular characterization in polymer synthesis research and quality control in polymer industrial production, Cheng Rongshi proposed a simple and easy molecular weight characterization method, namely? A little? The formula for calculating the intrinsic viscosity number is widely quoted in domestic and foreign literatures and monographs, and is called "? Cheng Rongshi formula? .
From 65438 to 0965, Cheng Rongshi began to study gel permeation chromatography, which just appeared at that time. He first developed the porous packing, a key component, and expounded the pore-forming mechanism of porous packing and the theoretical relationship of controlling porosity. Cheng Rongshi's theory of separation and unification of expansion effect was the simplest method to correct expansion effect in this field at that time. When the paper was submitted to the annual meeting of the American Chemical Society, it was released as an important achievement of that year, which attracted the attention and attention of foreign counterparts. The simple gel chromatography created by him meets the needs of characterizing the molecular weight and molecular weight distribution of polymers before the self-recording instrument is popularized in China. Then, Cheng Rongshi turned the research focus of gel chromatography to absolute quantification, established the principle of absolute quantification, created an effective and direct quantitative method to study adsorption and intermolecular coordination at the molecular level, and expanded the application scope of gel chromatography.
With the continuous expansion of research, Cheng Rongshi has made a series of original and important achievements in the research fields of polymer cross-linking network structure, polymer crystallization, polymer chain conformation theory, single-chain polymer preparation, polymer coagulation process and so on.
If you want to go to the podium, you must go to the podium.
Starting from 1978, in addition to scientific research, Cheng Rongshi began to undertake postgraduate training. After that, 1983 entered Nanjing University, and 1995 entered South China University of Technology. He devoted considerable energy to the cause of cultivating students. ? I come from an educated family. After I joined the work, I was engaged in scientific research in the first half and transformed into an educator in the second half. When I have the opportunity to stand on the platform and communicate with students, I always think of the scenes where Dai Anbang, Zhang Longxiang and Qian Renyuan instructed me. ? Cheng Rongshi, who stepped onto the podium, put the teacher's educational concept into his own teaching work.
With a strong sense of mission, Cheng Rongshi is hands-on. Even if he is old and unwell, he often goes to the laboratory to participate in the topic selection of student papers, and almost follows up and guides student papers. Cheng Rong often said that when people go to the podium, their hearts should also go to the podium. He warned students to be down-to-earth, diligent and studious, and scientific research work is like a boat in the vast sea. In the face of stormy waves, they should be able to bear loneliness and failure again and again. He encourages students to be innovative, not superstitious about literature and dare to surpass their predecessors. Cheng Rong was born with a teacher's heart, hoping that every student can grow into a towering tree and become a pillar of the country.
When I first went to Mr. Cheng's house to be a doctor, he told me: To do scientific research, we should be dedicated, indifferent to fame and fortune, and do everything well in a down-to-earth manner. Many of the habits I cultivate students now are learned from Mr. Cheng. On the one hand, he is very approachable and always encourages students; On the other hand, the requirements for courses and research are very strict, and there is no room for carelessness. Teacher Cheng's diligence and self-discipline made me understand that before asking students, they must set an example. ? The students of Cheng Rong Shi have always kept their teachings in mind.
Cheng Rong has always been full of enthusiasm for new things. 1977, Cheng Rongshi's relatives brought back a small calculator with simple program from America. He is a treasure. Under the harsh working conditions at that time, this small calculator was of great help to data processing. ? Even though he is old, Cheng Rongshi is still interested in computer software and data processing software, and even teaches students how to use it. This spirit of never too old to learn has been deeply inspiring every student.