hoidap
Materials
- Oct 25, 2007
- 11
Dear members
I am doing suspension polymerization of polystyrene,
BPO is used as initiator (~1wt % of monomer)
PVA as dispersed agent (0.4 -> 1wt% of water)
monomer/water : 1/10 and 2/10 and 4/10
I tried to vary monomer/water ratio, PVA ratio, and i always fail to obtain the bead but an aggregated mass.
The coalescence always happens at sticky stage.
please advice how to overcome this and obtain bead PS
Thank you so much
Best regards
I am doing suspension polymerization of polystyrene,
BPO is used as initiator (~1wt % of monomer)
PVA as dispersed agent (0.4 -> 1wt% of water)
monomer/water : 1/10 and 2/10 and 4/10
I tried to vary monomer/water ratio, PVA ratio, and i always fail to obtain the bead but an aggregated mass.
The coalescence always happens at sticky stage.
please advice how to overcome this and obtain bead PS
Thank you so much
Best regards