Langmuir and Langmuir-Blodgett films of Cl-PPV mixed with stearic acid: implication of the morphology on the surface and spectroscopy properties

Autor(es)

Sakai, Andrei ^[1] ; Peres, Laura O. ^[1] ; Caseli, Luciano ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Paulo, Inst Environm Chem & Pharmaceut Sci, Diadema, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: COLLOID AND POLYMER SCIENCE; v. 293, n. 3, p. 883-890, MAR 2015.
• Citações Web of Science: 1

Resumo

The molecular architecture of polymeric films can be changed in order to obtain enhanced properties for the fabrication of optoelectronic devices. In this paper, poly(2-chloro-p-phenylenevinylene) was spread on the air-water interface and mixed with stearic acid in order to form stable Langmuir monolayers. These films were transferred from the air-water interface to solid supports as Langmuir-Blodgett (LB) films. The influence of Cl in the polymer chain was investigated with measurements of surface pressure, polarization modulation infrared reflection-absorption spectroscopy (PM-IRRAS), Brewster angle microscopy (BAM), atomic force microscopy (AFM), and fluorescence spectroscopy. The immobilization of this polymer on solid supports as LB films provided a high control of its morphological and luminescence properties, which may be useful tomanipulate structures at the molecular level to be applied as optoelectronic devices. (AU)

• Processo FAPESP: 13/10213-1 - Interação de materiais bioativos em filmes ultrafinos organizados em modelos de biointerfaces para investigação de processos de reconhecimento molecular e mecanismos moleculares associados
• Beneficiário: Luciano Caseli
• Modalidade de apoio: Auxílio à Pesquisa - Regular