| 학회 | 한국화학공학회 |
| 학술대회 | 2016년 가을 (10/19 ~ 10/21, 대전컨벤션센터) |
| 권호 | 22권 2호, p.1444 |
| 발표분야 | 고분자 |
| 제목 | Synthesis and characterization of star-shaped PMMA-b-PS copolymer with discotic π-stacking feasible core |
| 초록 | The reduction of domain sizes of block copolymer thin films has attracted much attention. Especially, PS-b-PMMA is widely used in thin films. Total segment number (N) is one of the factor that can control the self-assembly of block copolymer. It is possible to create small domain sizes by decreasing the N of a block copolymer. However, the incompatibility between two blocks is too weak for microphase separation when N is too small. Here, we are trying to make the block copolymer which has a propensity to form columnar structures via π-stacking interactions. Star-shaped PMMA-b-PS will be synthesized by using Hexa-peri-hexabenzocoronenes (HBCs) as a core of the star-shape. For this purpose, 6 hydroxyl groups on HBCs will be replaced with bromine groups that is the initiation site of ATRP for PMMA and PS. The expected molecular structure is that 6 PMMA-b-PS chains are attached to one HBCs. We characterized that HBCs by NMR and MALDI-TOF. The morphologies of this block copolymer will be investigated. By using HBCs as a core of star-shaped block copolymers, we can reduce the feature sizes with small total segment number without macrophase separation. |
| 저자 | 박소영1, 김진곤2 |
| 소속 | 1POSTECH, 2POSTECH 화학공학과 |
| 키워드 | 고분자합성 |
| 원문파일 | 초록 보기 |
