I use Pellon stabilizer & it doesn't bond well with poly. For poly, I use Heat'n'Bond and lightweight muslin. Heat'n'Bond fuses at a lower temp so it works better with polyester fabrics. I have yet to find/hear of a fusible stabilizer that consistently works well with synthetic fabrics ... if you find one, let me know.
Sometimes I get lucky & the Pellon works -- just depends if you're willing to risk ruining your fabric to find out.