Crystalline particles from self-assembled divinyl oligomers
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
20/10/2012
20/10/2012
2009
|
| Resumo |
Ethylene glycol dimethacrylate (EGDMA) and/or triethylene glycol dimethacrylate (TEGDMA) oligomers formation was catalyzed in aqueous medium by horseradish peroxidase (HRP) in the presence of H(2)O(2) at room temperature. EGDMA and/or TEGDMA oligomers were characterized by means of gel permeation chromatography, infrared vibrational spectroscopy and (1)H NMR spectroscopy. Self-assembling of oligomers led to right-angled crystalline particles, as evidenced by scanning electron microscopy and differential scanning calorimetry. EGDMA, TEGDMA and EGDMA-co-TEGDMA oligomers synthesized in the presence of HRP-H(2)O(2) system presented pendant vinyl groups along the chains. good solubility in chloroform, and well-defined melting point. These features evidenced few cross-linking or cyclization and revealed that the catalytic properties of HRP led to oligomeric materials with new characteristics. (C) 2008 Elsevier B.V. All rights reserved. FAPESP Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) CNPq |
| Identificador |
Materials science and engineering. C, Biomimetic materials, sensors and systems, v.29, n.2, p.564-570, 2009 0928-4931 http://producao.usp.br/handle/BDPI/30848 10.1016/j.msec.2008.10.010 |
| Idioma(s) |
eng |
| Publicador |
ELSEVIER SCIENCE BV |
| Relação |
Materials science and engineering. C, Biomimetic materials, sensors and systems |
| Direitos |
restrictedAccess Copyright ELSEVIER SCIENCE BV |
| Palavras-Chave | #Horseradish peroxidase #Divinyl monomers #Oligomers #Self-assembling #CROSS-LINKING POLYMERIZATION #HORSERADISH-PEROXIDASE #DIMETHACRYLATE OLIGOMERS #CATALYSIS #NETWORKS #POLYMERS #ENZYME #Materials Science, Multidisciplinary |
| Tipo |
article original article publishedVersion |
