Organosilicone modification of allyl methacrylate with speier’s catalyst for waterborne self-matting styrene-acrylic emulsion

In this study, we provided a solvent-free method to modify allyl methacrylate (AMA) with 1,1,1,3,5,5,5-heptamethyltrisiloxane (MDHM) through hydrosilylation reaction catalyzed by Speier’s catalyst. The results from Fourier transform infrared spectroscopy (FT-IR) and ultraviolet spectrometer (UV) clearly indicated that AMA was modified by MDHM through the hydrosilylation on the Cdouble bond; length as m-dashC of isopropenyl segment with the Cdouble bond; length as m-dashC of propenyl group remaining to obtain unsaturated acrylate containing organosiloxane chain segment. We also studied the application of MDHM modified AMA in waterborne self-matting styrene-acrylic emulsions through in-situ copolymerization. The surface gloss, wettability, chemical composition and morphology of the prepared emulsion coating films were investigated. The results showed that organosiloxane chain segments were successfully introduced, which made film get a fine rough surface, which increase the film surface water contact angle and help to obtain a kind of waterborne semi-gloss styrene-acrylic resin film

Explore further

Volume 116, March 2018, Pages 1–6


Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.


You have successfully subscribed to the newsletter

There was an error while trying to send your request. Please try again.

Paints and Coatings Expert will use the information you provide on this form to be in touch with you and to provide updates and marketing.
%d bloggers like this: