1. Self-assembly of nanosheets by organometallic homopolymer PFpC3P
Dapeng Liu

2. Outline Introduction Preparation of nanosheets nanostructures
Characterization of nanosheets nanostructures
Temperature-induced morphology transition
Summary

3. Homopolymer PFpC3P aggregates into vesicles in the THF/H2O
Introduction
Homopolymer PFpC3P aggregates into vesicles in the THF/H2O

4. Preparation of nanosheet nanostructures
Initial polymer concentration= 1mg/ml
Volume=1 ml
DMSO
Adding 9 ml water
Colloid
Briefly shaking
Homopolymer PFpC3P aggregates in the DMSO/H2O

5. Characterization of nanosheet nanostructures-TEM
TEM images distinctly show that nanosheet nanostructures are formed

6. Characterization of nanosheet nanostructures-AFM
Dipping method to prepare the sample
Phase contrast mode
Height mode
Corresponding height profile along the scan lines
5.68 nm
Nanosheet nanostructures ( the height of nanostructure 3.3 nm) are found in the AFM images

7. Temperature-induced morphology transition
Initial polymer concentration= 1mg/ml
Volume=1 ml
DMSO(40 ℃)
Adding 9 ml water
(40 ℃)
Colloid
Briefly shaking
The formation of a vesicle having the ability to change its shape in response to external stimuli is considered to be an important step in the transition from inanimate organic compounds toward cellular life.
Slight indentations.78 (b) Stomatocytes.79 (c) Fully collapsed “kippah” structure; kippah is a Hebrew word for both dome and the traditional skullcap
Vesicles (Spherical and Fully Collapsed) are formed at higher temperature (40 ℃) .

8. Summary
When DMSO is used as cosolvent, nanosheets nanostructure were formed at room temperature and characterized by TEM and AFM
2. The vesicle could be also witnessed by increasing the temperature in DMSO cosolvent system which was characterized by TEM
Future work
More higher temperature experiments (60 ℃， 80 ℃） would be tried to find if more different morphologies are discovered.
Investigate the possible reason for the temperature-induced self-assembly.

9. Thanks