| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
| 권호 | 30권 2호 |
| 발표분야 | 분자전자 부문위원회 |
| 제목 | Synthesis of Amphiphilic, Light-Emitting, Conjugated Block Copolymers Containing a Conjugated Oligofluorene Rod Segment by Atom Transfer Radical Polymerization |
| 초록 | Well-defined amphiphilic triblock copolymers (PEGMA-b-PF-b-PEGMA and PHEMA-b-PF-b-PHEMA) containing a rod-like polyfluorene (PF) and coil-like poly[oligo(ethylene glycol) methyl ether methacrylate] (PEGMA)s or poly(hydroxy ethyl methacrylate) (PHEMA) were successfully synthesized through atom transfer radical polymerization (ATRP) initialized by a 2-bromoisobutyrate end-capped polyfluorene macroinitiator using CuBr/ N,N,N’,N’,N’’-pentamethyldiethylenetriamine (PMDETA) catalyst system. PEGMAs, containing various lengths of oligo(ethylene glycol) repeating units (DPOEG = 5, 8, 23, number average molecular weight, Mn = 300, 475, 1100 g/mol) were used as end blocks. 1H NMR and GPC were used to confirm the molecular weight and structure of these triblock copolymers. We also investigated the UV absorption and photoluminescence of PEGMA-b-PF-b-PEGMA and PHEMA-b-PF-b-PHEMA both in solid state and selective solvents. Fig. 1. PL data of polyfluorene macroinitiator and PEGMA-b-PF-b-PEGMa triblock copolymer. Fig. 2. AFM images of PHEMA-b-PF-b-PHEMA in mixed THF/MeOH solvents (v/v) with varying solvent compositions. |
| 저자 | 김현석, 김현정, 권용구 |
| 소속 | 인하대 |
| 키워드 | polyfluorene; amphiphilic block copolymers; photoluminescence |
