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          Institute: MPI für Polymerforschung     Collection: MPI Polymerforschung     Display Documents



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ID: 59736.0, MPI für Polymerforschung / MPI Polymerforschung
Polymeric mesoions: Novel synthetic methods, photochemistry, and characterization in the solid state by dielectric-and waveguide-mode spectroscopy
Authors:Theis, A.; Menges, B.; Mittler, Silvia; Mierzwa, M.; Pakula, Tadeusz; Ritter, H.
Language:English
Date of Publication (YYYY-MM-DD):2003-10-07
Title of Journal:Macromolecules
Journal Abbrev.:Macromolecules
Volume:36
Issue / Number:20
Start Page:7520
End Page:7526
Review Status:not specified
Audience:Not Specified
Abstract / Description:Photosensitive mesoionic polymers in which the polymerizable methacrylic group is attached to the malonic acid component of the mesoionic function were prepared and characterized. Dielectric measurements were performed, and the results were compared to those of liquid-crystalline mesoionic copolymers. The influence on the dielectric properties upon irradiation with UV light, which causes the photoconversion of the mesoionic groups to bis(beta-lactame) structures, was determined. The glass-transition temperatures determined by dielectric spectroscopy were compared to those obtained by DSC. It could be observed by waveguide-mode spectroscopy that irradiating the mesoionic methacrylates results in remarkable effects on the film thickness and refractive index of spin-coated polymer films.
Comment of the Author/Creator:Date: 2003, OCT 7
External Publication Status:published
Document Type:Article
Affiliations:MPI für Polymerforschung
External Affiliations:Univ Düsseldorf, Inst Organ Chem & Macromol Chem, D-40225 Düsseldorf, Germany.
Identifiers:ISI:000185731100016 [ID No:1]
ISSN:0024-9297 [ID No:2]
LOCALID:P-03-115
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