| 학회 |
한국공업화학회 |
| 학술대회 |
2017년 봄 (05/10 ~ 05/12, 광주 김대중컨벤센센터(Kimdaejung Convention Center)) |
| 권호 |
21권 1호 |
| 발표분야 |
고분자 |
| 제목 |
Synthesis of High Molecular Weight Polybenzimidazole Using a Highly Pure Monomer under Mild Condition |
| 초록 |
Isophthalaldehyde bisulfite adduct (IBA) is synthesized by the reaction between sodium sulfite and isophthalaldehyde. Isophthalaldehyde monosulfite, which is difficult to be removed by simple crystallization, is inevitably synthesized in the reaction. To obtain pure IBA, excess sodium sulfite is used. Highly pure IBA is obtained without crystallization. The IBA is used as a starting monomer for the synthesis of poly[2,2’-(m-phenylene)-5,5’-bisbenzimidazole] (PBI). Previous isolation method of IBA hindered the preparation of high molecular weight PBI. New purification procedure provides high purity of IBA, resulting in high molecular weight PBI. |
| 저자 |
김은기1, 김형준1, 이종찬2, 이소영1, Dirk Henkensmeier1
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| 소속 |
1한국과학기술(연), 2서울대 |
| 키워드 |
Isophthalaldehyde bisulfite adduct; Polybenzimidazole; Solvent polymerization
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| E-Mail |
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