Journal of Industrial and Engineering Chemistry, Vol.12, No.5, 783-789, September, 2006
Synthesis of Multifunctional Epoxy Monomers and their Potential Application in the Production of Holographic Photopolymers
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Polydimethylsiloxanes having four epoxide functionalities (Multi) were synthesized through hydrosilylation of polydimethylsiloxane-co-polymethylhydrogensiloxane with 4-vinyl-1-cyclohexene 1,2-epoxide and were characterized using FT-IR, 1H-NMR, and 29Si-NMR spectroscopy. Diffraction efficiency studies on the use of Multi as a co-monomer for holographic photopolymerization of 1,3-bis[2-(3-{7-oxabicyclo[4.1.0]heptyl}-tetramethyldisiloxane, based on cationic ring opening polymerization, were undertaken; a fast response time (3 sec) was observed. The effects of the amount of photo-acid generator and chain length of Multi are described.
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