In this study, an effective fluorescence pH sensor based on conjugated polyelectrolyte micelles (CPMs) was devised for detecting extremely acidic conditions. An amphiphilic coumarin derivative (CC12-N), a building block, was prepared, into which an ionizable amino group, aryl amine, was incorporated as a potential hydrophilic moiety. This monomer displays self-assembled micelle formation in extremely acidic pH ranges, giving a hydrophobic π-extended conjugated system at the inner part and hydrophilic functionality at the periphery, resulting in efficient fluorescence intensity enhancement. This new micelle-based fluorescence provides an efficient sensing platform for detecting very low pH values in the presence of competing substances.

Abstract
1. 서 론
2. 재료 및 방법
    2.1. 재료 및 기기
    2.2. 실험방법
3. 실험 결과 및 토의
    3.1. 합성
    3.2. pH 센싱
    3.3. 강산성 조건에서의 구조적 특성
    3.4. 광 안정성(Photostability)
4. 결 론
REFERENCES

• 이정무(대구대학교 화학 응용화학과) | Jeongmoo Lee (Department of Chemistry, Daegu University)
• 이성호(대구대학교 화학 응용화학과) | Seoung Ho Lee (Department of Chemistry, Daegu University) Corresponding author