Laccase-catalyzed polymerization of m-phenylenediamine in aqueous buffers
Laccase-catalyzed polymerization of m-phenylenediamine in aqueous buffers
Nasrin Raseda(University of Ulsan, Ulsan); Jung Hee Park(University of Ulsan); 류근갑(울산대학교)
33권 10호, 3011~3015쪽
초록
In the laccase-catalyzed polymerization of m-phenylendiamine in 100% aqueous buffers, the yield of the polymer was strongly influenced by various reaction conditions such as the solution pH and the concentrations of laccase and m-phenylendiamine. When the reaction was performed at pH 3, the 100% synthetic yield of the polymer was achieved. As pH increased, the yield of the polymer decreased significantly to only 4.4% at pH 9. Effects of solution pH on the morphology and the thermal stability of the polymer were investigated in detail. The polymer synthesized at pH 3 has the typical aggregated morphology of globular particles, but being synthesized at pH 7, it has non-aggregated morphology. The thermal stability of the polymer deteriorated as reaction pH increased.
Abstract
In the laccase-catalyzed polymerization of m-phenylendiamine in 100% aqueous buffers, the yield of the polymer was strongly influenced by various reaction conditions such as the solution pH and the concentrations of laccase and m-phenylendiamine. When the reaction was performed at pH 3, the 100% synthetic yield of the polymer was achieved. As pH increased, the yield of the polymer decreased significantly to only 4.4% at pH 9. Effects of solution pH on the morphology and the thermal stability of the polymer were investigated in detail. The polymer synthesized at pH 3 has the typical aggregated morphology of globular particles, but being synthesized at pH 7, it has non-aggregated morphology. The thermal stability of the polymer deteriorated as reaction pH increased.
- 발행기관:
- 한국화학공학회
- 분류:
- 화학공학