1. ‘고(高)’ 분자시스템:
기술융합(Technology Fusion)의 주역

2. Delocalized electrocloud
Conducting Polymer
π-conjugated polymer structure
Delocalized electrocloud
Preparation of Conducting Polymer – redox reaction
- Chemical Doping, Electrochemical Doping, Physical Method Dopant - Halogen( Br2, I2 etc.), Lewis acid( AsF5, SO3, FeCl3 etc.)
protonic acid ( HCl, H2SO4, HClO4 etc.)
low (10-9S/cm)
high (103S/cm)
(polaron)

3. Poly(phenylene sulfide)
Conducting Polymer
Polyacetylene
Poly(p-phenylene)
Poly(phenylene sulphide)
Poly(p-phenylene vinylene)
Polythiophene
Polypyrrole
Polyaniline
Conduction Band
Valence Band
S cm-1
105
100
10-5
10-10
10-15
10-20
Metal
Polyacetylene
Poly(p-phenylene)
Poly(phenylene sulfide)
Polypyrrole
Polythiophene
Nylon
PVC
Polystyrene
Polyimide(Kapton)
PTFE(Teflon) C O N D U T I G P L Y M E R
Semi-
conductors X
Insulators

4. Applications of Conducting Polymers
Device (diodes, FETs, etc)
Electrostatic Discharge(ESD)
Electromagnetic Interference (EMI) Shielding
Conducting Polymer
Interconnecting Wiring
Metallization
Collosion Protection of Metals
Rechargeable Batteries
Lithography (Charge dissipators, Conducting resists)

5. Electronic Paper

6. 전해질로 고체나 겔 형태의 고분자 전해질을 사용
Li-Polymer Battery
리튬 폴리머전지
전해질로 고체나 겔 형태의 고분자 전해질을 사용
- 리튬 이온 폴리머전지

7. Li-Polymer Battery

8. Cheap, Plastic Solar Cells

9. Photorefractive Polymer

10. Photoresists Lithographic processes
Deep - UV : Eximer Laser, KrF (248㎚)
→ 0.25㎛ line
for 256 M DRAM
X-ray (~1nm) → 0.1 ㎛ line
for >1 Giga DRAM
(insol.)
(sol.)

11. Polymeric Materials for Photonics
Spatial light modulator
Compact Disc Technology
(Polycarbonate)
The pits : 0.25㎛ deep, 0.5㎛ wide,
3.5㎛ long →control bifringence
2) Nonlinear Optical Materials
→ switches, modulators, and amplifiers
March-Zehnder Interferometer
Optical switching

12. Twisted Nematic Liquid Crystal Display
Structure of the dispersed liquid crystal droplets

13. Organic Light Emitting Diodes

14. Organic Light Emitting Diodes

15. Applications of OLED

16. Nanopore Sensor
Applied voltage draws a DNA strand and surrounding ionic solution through a biological nanopore. The various DNA units in the strand block ion flow by differing amounts. In turn, by measuring these differences in ion current, scientists can detect the sequence of DNA units. Simulation allows detailed study to enhance the abilities of these DNA sequencers. Potential applications for NASA missions include astronaut health, life detection and decoding of various genomes.

17. POLYMER - CNT COMPOSITE
                                                                                                                            

18. Health, Medicine, and Biotechnology
→ The challenges are great : the rewards are greater.
1) Implants and Medical Devices ; Stable and Biocompatible
ex) Artificial kidney. Contact lens, Artificial organs
Dental material (PMMA), Catheters etc.
2) Diagnostic
Automated clinical analyzer : Surlyn etc.
3) Controllled Drug Release
Trans dermal patches (ex: Seasickness patches) Microspheres , pumps, aerosols,
contraceptive implants
→ Diffusion, Erosion or Osmotically controlled systems
ex. Procardia XL, Duragesic, Estraderm
Nitrosoureas in Anhydride linkage (brain cancer)
4) Biopolymers
DNA, RNA, proteins, carbohydrates and lipids
in Molecular recognition, Biological motion,
Bioelastomers
Biocomposites