????????? ? ? ? ? ? Conductive Polymers - PowerPoint PPT Presentation

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????????? ? ? ? ? ? Conductive Polymers

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Title: ????????? ? ? ? ? ? Conductive Polymers


1
????????? ? ? ? ? ? Conductive Polymers
? ? ? Wen-Jwu Wang
Department of Chemistry, Tamkang Universuty
2
Nobel Laureates ?????????????
3
The Nobel Prize in Chemistry 1953 for his
discoveries in the field of macromolecular
chemistry 
Hermann Staudinger b. 1881 d. 1965
University of Freiburg ,Breisgau, Freiburg
Staatliches Institut für makromolekulare
Chemie State Research Institute for
Macromolecular Chemistry, Germany
4
The Nobel Prize in Chemistry 1963 for their
discoveries in the field of the chemistry and
technology of high polymers
Giulio Natta b. 1903 d.
1979 Institute of Technology Milan, Italy
Karl Ziegler b. 1898 d.
1973 Max-Planck-Institut für Kohlenforschung
(Max-Planck-Institue for Carbon Research)
Mülheim/Ruhr, Germany
5
The Nobel Prize in Chemistry 1974 for his
fundamental achievements, both theoretical and
experimental, in the physical chemistry of the
macromolecules"
"
Paul J. Flory b. 1910 d. 1985 USA Stanford
University , Stanford, CA, USA
6
The Nobel Prize in Chemistry 2000 "for the
discovery and development of conductive
polymers"
?? ??
Alan J. Heeger G. MacDiarmid
Hideki Shirakawa
University of California Santa Barbara, CA, USA
b. 1936
University of Pennsylvania Philadelphia, PA,
USA b. 1927 d. 2007
University of Tsukuba Tokyo, Japan b. 1936
7
The Nobel Prize in Chemistry 2020 "for the
discovery and development of new polymers"
You
8
? ? ? ? ? ? ?
???? ???? ???? ????
9
?? ?? ???
-(CH2-CH2)n-
-(CH2-CHR)n-
R
10
???????
11
??? (PE) ???
Ziconocene Catalyst ?????
  • Ziegler-Natta Catalyst
  • ??????
  • ??????

12
???????
13
??? (PP)
H
H
C
C
H
R
R CH3
????
14
???? (PS)
H
H
C
C
H
R
R C6H5
????
15
????
?-????? ????
16
????????
  • ??

17
???? (PVC)
  • ???

H
H
C
C
H
R
R Cl
???? ????? ????
18
???? ????
  • ???

H
H
C
C
H
R
R Cl
???? ????? ????
19
???? (PAN)
H
H
C
C
H
R
R CN
???? ????? ????
20
?????? (PMA)
H
H
C
C
H
R
R COOCH3
21
?????? (PMMA)
H
CH3
C
C
H
R
R COOCH3
???
22
???? (PVA)
H
H
C
C
H
R
R OH
???? ?? ???
23
???? (PVA)
H
H
C
C
H
R
R COOH R COONa
  • ???? ???

24
PET ??????
25
?? Nylon
?? ??
26
Conductive Polymer ??????
27
???????
?? ?? ???? ?? ?? ?? ????
?? ?? ?? ???? ?? ??? ???
? ?
28
?????
????????? ????????? ?????????
29
Conductive Polymer ?????????
? ? ? ? -CC-CC-CC-
30
Discovery of Conductive Polymers
31
Synthesis ??
Polyacetylene ???
32
Polymerization of Acetylene
??
33
A surprise with a silver lining...
34
... and a Nobel Medal in Gold
35
Synthesis ??
??
???
??
36
Semiconductor ???
37
Doping raises molecule performance ????????
38
Doping to p- and n-form ?????-???
Oxidation with halogen (p-doping) CHn
3x/2 I2 --gt CHnx x I3- Reduction with
alkali metal (n-doping) CHn x Na --gt
CHnx- x Na
39
Soliton ???and Polaron???
40
Soliton ???
41
Charge Transport ????
42
Conductivity ???
43
How beautiful!
44
Polythiophene ???
Optical microscope image using crossed polarizers
of an oriented polymer semiconductor,
regioregular poly(3-hexylthiophene), film
commonly used in organic field-effect
transistors. Two images with magnification 5x are
combined. Credit Tomas G. Bäcklund, Department
of Physics and Center for Functional Materials,
Åbo Akademi University, Turku, Finland
45
Microstructure ???
46
Microstructure ???

Random (left) and Ordered (more conductive,
right) Morphology
47
Microstructure ???
Solid and Hollow Fibers of Polyaniline (Santa
Fe Science and Technology, Inc.)
48
Microstructure ???
Solid Polyaniline Fiber (Santa Fe Science and
Technology, Inc. )
49
Microstructure ???
Fractal Morphology of Conductive
Polymers//Artificial Lightning Dissipation over
the Surface of a Conductive Polymer (Lockheed)
50
Solar Cells ?????
51
Polythiophene ??? Polypyrrole ???
be useed in antistatic treatment of photographic
film be used in electronic devices
52
Polyaniline ???
Doped polyaniline in antistatic material to avoid
static electricity. It is also used on computer
screens, protecting the user from electromagnetic
radiation, and as a corrosion inhibitor.
53
Polyphenylenevinylen ?????
Materials such as polyphenylenevinylene may soon
be used in mobile phone displays.
54
Polydialkylfluorenes ??????
Polydialkylfluorenes are used in the development
of new colour screens for video and TV.
55
Polymer Transister ??????
56
Regioregular Polythiophene
Variations in the chemical cap also allow
regioregular polythiophene strands to adhere
directly to metal, silicon or other industrially
important templates used in devices like
transistors
57
Device
Microelectrode Chip (Abtech Scientific Inc.)
58
Brilliant Applications Light-emitting diodes (LED)
59
PLED ????????
60
??????????????PEDOT
??? S/cm
??????
Baytorn, Polypyrrole
10
1
0.1
????
0.01
?????
61
? ?
?
?
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