Experiment 5_A tomic f or c e microscopy

AFM experiment

1. Exp 5. AFM Lab Report Measuring Properties of Elastomers using AFM Force Curves Group Number : 4 StuDENT ID : 20210803 NaME : Khanim Yagublu CH252 Chemistry Major Laboratory I

2. I. Lab note 3 pts Introduction : 실험 배경 , 실험 의의 / 목적 등 : Background, Significance/Purpose of the Experiment, etc. Key Topics 1) AFM, Elastomers 2) Intermolecular interactions, Force curves Procedure : 매뉴얼 단순 번역 X, 자신이 실험한 과정 , 질량 , 부피 , 측정 조건 등 상세히 기록 : Do not simply translate the manual. Record the detailed processes you performed in the experiment, including mass, volume, measurement conditions, and other specifics. Add additional slides if necessary.

3. Plot five deflection curves from the experiments. (Curing agent to base ratio from 2 to 18) 1 pt II. Data & Results 2:1 4:1 6:1 10:1 18:1

4. Plot five deflection curves from the experiments. (Curing agent to base ratio from 2 to 18) 1 pt II. Data & Results 2:1          

5. Plot five deflection curves from the experiments. (Curing agent to base ratio from 2 to 18) 1 pt II. Data & Results 4:1          

6. Plot five deflection curves from the experiments. (Curing agent to base ratio from 2 to 18) 1 pt II. Data & Results 6:1          

7. Plot five deflection curves from the experiments. (Curing agent to base ratio from 2 to 18) 1 pt II. Data & Results 10:1          

8. Plot five deflection curves from the experiments. (Curing agent to base ratio from 2 to 18) 1 pt II. Data & Results 18:1          

9. Calculation of each spring constants for combined and elastomer. 1 pt II. Data & Results Sample (Base : Curing Agent) Slope (N/m), k combined 2 : 1 4 : 1 6 : 1 10 : 1 18 : 1 Sample (Base : Curing Agent) k elastomer (N/m) 2 : 1 4 : 1 6 : 1 10 : 1 18 : 1

10. Plot the graph for finding out the trend of spring constant of elastomer with varying base to curing(B:C) agent ratio. (x-axis: B:C ratio, y-axis: spring constant) II. Data & Results You can use other plotting programs, (such as Excel or Origin) 1 pt

11. Expect whether elastomer spring constants would change depending on the tip location on the elastomer. III. Discussion: Assessment of the results 1 pt

12. 1 pt III. Discussion: Assessment of the results Predict how B:C ratio will have an effect on elastomer spring constant and tip-sample adhesion, respectively.

13. 1 pt III. Discussion: Assessment of the results Error analysis

14. 1 pt IV. Conslusions

15. Example) 1. Tanimoto, S.; Ichimura, A. Discrimination of Inner- and Outer-Sphere Electrode Reactions by Cyclic Voltammetry Experiments. J. Chem. Educ. 2013 , 90 , 778– 781 V. References