Abstract ▼

□ Purpose& contents
We will provide synthetic methods for direct preparation of thermally stable nano-structures from various diblock copolymers via strong self-assembly. The living polymerization via catalysis is the key to construct the core block containing well-defined conjugated polymers and

□ Purpose& contents
We will provide synthetic methods for direct preparation of thermally stable nano-structures from various diblock copolymers via strong self-assembly. The living polymerization via catalysis is the key to construct the core block containing well-defined conjugated polymers and the fundamental investigation on the catalysis must be carried out. With these nano-structured polymer material from block copolymers, various physical, chemical and electronic properties will be investigated in detail.

□ Result
1. Mechanistic investigation on cyclopolymerization: This allowed us to understand when the cyclopolymerization worked best and when not. We could understand the decomposition pathway that severely affected the side-reaction.
2. Regio-selectivity of cyclopolymerization based on the different catalysts: Previously, Ru catalyst only gave α-addition to yield 5-membered ring polymers. Now, with new catalysts, we could obtain β-addition polymer to give 6-membered rings. Also, the 1^st generation Grubbs catalyst could successfully produce cyclopolymerization for the first time.
3. Cascade Polymerization: We developed a new concept of polymerization using more than two different processes but to make well-defined polymers. This tandem/cascade polymerization would open up a new opportunity to polymerization field.
4. New process for self-assembly: Using the polymerization technique developed above, we were able to come up with new strategies for self-assembly. Particularly, we could get 2D nano-sheet very efficiently, Also, we devised very simple one-shot methods for spontaneous self-assembly making the whole self-assembly process much more economic and user-friendly. Lastly, we observed the self-assembly process proceeded as time goes, allowing us to understand more about the mechanism of this process.

□ Expected Contribution
Conjugated polymers are good electronic materials. Conjugated polymers with well-defined nano-structures are expected to show even better performances as a electronic materials. Therefore, they will be used as key materials in the next generation electronic devices such as new memory, display, transistors and solar cells. The next generation electronics will be based on organic electronics which have advantages such as flexibility, low-cost over large area and portability. Light and flexible TVs and solar cells will totally change our life-style. Development of new materials with high performance will be critical.

(출처 : SUMMARY 5p)

목차 Contents

• 표지 ... 1
• 목차 ... 2
• 연구계획 요약문 ... 3
• 연구결과 요약문 ... 4
• 한글요약문 ... 4
• SUMMARY ... 5
• 연구내용 및 결과 ... 6
• 1. 연구개발과제의 개요 ... 6
• 2. 국내외 기술개발 현황 ... 7
• 3. 연구수행 내용 및 결과 ... 8
• 4. 목표달성도 및 관련분야에의 기여도 ... 14
• 5. 연구결과의 활용계획 ... 16
• 6. 연구과정에서 수집한 해외 과학기술정보 ... 16
• 7. 주관연구책임자 대표적 연구실적 ... 16
• 8. 참고문헌 ... 17
• 9. 연구성과 ... 18
• 10. 국가과학기술지식정보서비스에 등록한 연구시설‧장비 현황 ... 22
• 11. 연구개발과제 수행에 따른 연구실 등의 안전조치 이행실적 ... 22
• 12. 기타사항 ... 23
• 별첨1. 대 표 연 구 실 적 ... 24
• 별첨2. 세부 목표 관련 증빙 ... 39
• 끝페이지 ... 40