| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
고분자합성 |
| 제목 |
Preparation of Water Soluble Polyimide Precursor Using Surfactants to Improve Diamines Solubility |
| 초록 |
Poly(amic acid) salt (PAAS) is one of the polyimide (PI) precursors which is water-soluble, stable over time, and thermally imidized at low temperature. PAASs are typically synthesized by the salt-forming process of poly(amic acid) (PAA) using an organic base such as tertiary amines. This process has the disadvantages such as environmental pollution and high cost due to the use of high polar organic solvent and complicated procedures. To solve this, a one-step synthesis of PAAS using water as a solvent with an organic base such as dimethylimidazole (DMIZ) has been reported. Nevertheless, the water-based PAAS polymerization is needed to solve the problem such as lack of chemical diversity caused by low water solubility of diamines. Here, we demonstrate the use of surfactants that help to dissolve poorly water-soluble diamines. As the result, we succeeded to synthesize the water-based PAAS solutions, which allows us to prepare PI films through the thermal imidization process. |
| 저자 |
정지윤, 소유진, 박노균, 박종민, 김윤호, 원종찬
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| 소속 |
한국화학(연) |
| 키워드 |
polyimide; poly(amic acid)salt; water; surfactant
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| E-Mail |
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