Synthesis of 1,9-bis[glycidyloxypropyl]penta(1 ' H,1 ' H,2 ' H,2 ' H-perfluoroalkylmethylsiloxane)s and copolymerization with piperazine
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A series of 1,9-bis[glycidyloxypropyl]pentasiloxanes (IV-VI) were prepared by the platinum catalyzed hydrosilylation of 1,9- dihydridodecamethylpentasiloxane (I), 1,9-dihydrido-3,5,7-tris(3, 3,3-trifluoropropyl)heptamethylpentasiloxane (II), and 1,9-dihydrido-3,5,7-tris(1H,1H,2H,2H-perfluorooctyl) heptamethylpentasiloxane (III) with allyl glycidyl ether. Subsequently, IV-VI were copolymerized with piperazine to form high molecular weight copoly(carbosiloxane)s (VII-IX). The structures of the 1,9- bis[glycidyloxypropyl]penta-siloxanes (IV-VI) and copoly(carbosiloxane)s (VII-IX) were determined by 1H, 13C, 29Si, and 19F NMR as well as IR spectroscopy. The molecular weight distributions (Mw/Mn) of VII-IX have been characterized by gel permeation chromatography and their thermal properties measured by differential scanning calorimetry and thermal gravimetric analysis. 2004 Elsevier Ltd. All rights reserved.
author list (cited authors)
Grunlan, M. A., Lee, N. S., & Weber, W. P.
complete list of authors
Grunlan, MA||Lee, NS||Weber, WP