Abstract
Novel cross-linked polysiloxane with end-capped epoxy groups as waterproofing agent for fabric was synthesized by hydrosilylation of polymethylhydrosiloxane and an epoxy groups-terminated polyvinylmethylsiloxane, which was previously prepared via anionic ring-opening polymerization of octamethylcyclotetrasiloxane, 2, 4, 6, 8-Tetramethyl-2, 4, 6, 8-tetravinylcyclotetrasiloxane, and epoxy group-terminated polydimethylsiloxane using tetramethylammonium hydroxide as a catalyst. Synthesis parameters were discussed in detail. Fourier transform infrared spectroscopy and nuclear magnetic resonance spectra confirmed structure of the resultants. X-ray photoelectron spectroscopy analysis further verifies that the cross-linked polysiloxane film was indeed covered on cotton surface. Thermal stability of those polymers was improved with augment of the cross-linking degree.
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