Alkyne-functional silica nanoparticles were synthesized and incorporated into two thiol-ene matrices. DMA testing has demonstrated decreased Tgs for samples loaded with nanoparticles with alkyne functional particles having similar tan(delta) peak heights to the neat samples.  RT-FTIR has shown a ~5% higher conversion of thiol-ene functional groups after 400 seconds. Particle aggregation was observed throughout the matrix using TEM of films.   DSC results showed a sharpening of the glass transition range for functional particles as compared to bare nanoparticles with a lower Tg for both particle types relative to a neat sample.

Effects of functionalized nanoparticles and their incorporation into glassy thiol–ene network matrices

241st National Meeting (2011)

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