Swelling and Deswelling of Poly (n-butylacrylate) Networks in Isotropic and Nematic Solvents

We report swelling/deswelling data of Poly(n-butyl acrylate) networks in isotropic and anisotropic solvents. The investigated systems are prepared via polymerization induced phase separation processes of initial mixtures composed of a reactive polymer precursor, a cross-linker, a photoinitiator and...

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Bibliographic Details
Published in:Molecular crystals and liquid crystals (Philadelphia, Pa. : 2003) Pa. : 2003), 2004-01, Vol.411 (1), p.553-559
Main Authors: Bouchaour, T., Benmouna, M., Coqueret, X., Maschke, U.
Format: Article
Language:English
Subjects:
Isotropic And Nematic Solvents
Liquid Crystal
Networks
Optical Microscopy
Photopolymerization
Swelling
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Summary:We report swelling/deswelling data of Poly(n-butyl acrylate) networks in isotropic and anisotropic solvents. The investigated systems are prepared via polymerization induced phase separation processes of initial mixtures composed of a reactive polymer precursor, a cross-linker, a photoinitiator and a low molecular weight solvent by ultraviolet (UV) radiation. A comparison of data obtained from isotropic organic solvents and a low molecular weight nematic liquid crystal is made in terms of temperature and cross-linking density of the network. Hexanediol-diacrylate (HDDA), a di-functional monomer is used as a cross-linker and the conditions of preparation are set in order to obtain well defined model networks. Effects of temperature and composition are evaluated by measuring the size via microscopy and the mass of dry and swollen networks. Simple modelling is used to rationalize the data.
ISSN:1542-1406
1563-5287
DOI:10.1080/15421400490436494