| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
23권 2호 |
| 발표분야 |
우수논문(구두)_박사과정 |
| 제목 |
Synthesis of high molecular weight polybenzimidazole using a highly pure monomer under mild conditions |
| 초록 |
An isophthalaldehyde bisulfite adduct (IBA) was synthesized using a reaction between sodium sulfite and isophthalaldehyde. Isophthalaldehydemonosulfite adduct (IMA) was inevitably synthesized during the reaction. Because IBA and IMA have similar solubility in water, it is difficult to separate them through a recrystallization process. In order to obtain pure IBA, an excess of sodium sulfite was used. Highly pure IBA was subsequently obtained without the need for recrystallization. The IBA was then used as the startingmonomer for the synthesis of poly[2,2′-(m-phenylene)-5,5′-bisbenzimidazole] (PBI). Previous isolation methods for IBA hindered the synthesis of high molecular weight PBI. This new synthetic procedure produces high-purity IBA, which can be used to synthesize high molecular weight PBI. |
| 저자 |
김은기1, 이소영2, 남상용3, 유성종2, 김진영2, 장종현2, Dirk Henkensmeier2, 김형준2, 이종찬1
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| 소속 |
1서울대, 2한국과학기술(연), 3경상대 |
| 키워드 |
engineering plastics; isophthalaldehyde bisulfite adduct; polybenzimidazole; solvent polymerization
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| E-Mail |
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