Dielectric Relaxation and Optical Transmittance of PVC Membranes Modified by Nematic Liquid Crystal

• Type: Article in International Scientific Journal
• Date: 2009

Authors

Simeao S Carvalho (Author) FCUP; Figueiras, F (Author) Other; Mendonca, S (Author) Other; Pereira, CM (Author) FCUP; Rodrigues, M (Author) Other

Journal

The Journal is awaiting validation by the Administrative Services.

Title: INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS

Vol. 58

Pages: 588-603

ISSN: 0091-4037

Indexing

ISI Web of Knowledge - 0 Citations

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Scientific classification

FOS: Natural sciences > Chemical sciences

Other information

Authenticus ID: P-003-QPA

DOI: 10.1080/00914030903081489

Abstract (EN): This study intends to present some further research in polymer-dispersed liquid crystal (PDLC) systems [1]. These PDLC type cells were produced based on a low-cost commercial polymer (PVC) and liquid crystal E48 (Merck), using a modified solvent preparation method (SIPS). These cells were characterized electro-optically and by low frequency dielectric relaxation (20 Hz to 1 MHz) experiments. Results are encouraging; the prepared composites show regular microstructures and optical transmittance changes induced by the electric field, introducing an alternative way of producing low-cost PDLC electro-optical cells.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 16