Polymer structure

Macroporous polystyrene crosslinked divinylbenzene

Functional groups

SO3H

Appearance

Opaque beads

Ionic form as shipped

H

Total exchange capacity mmol/ml[H+]

≥1.5

Moisture holding capacity  %

35~55

Mechanical strength  %

≥90

Shipping weight  g/mL

 0.60-0.75

Specific gravity  g/mL

1.15-1.25

Particle size range  %

 (Φ3×5)≥90

Uniformity coefficient

≤1.4

Temperature limit

120°C

Isobutene content in raw materials   %

15~45

 Reaction pressure   MPa

 1.0~2.0

 Air speed    h-1

  1~5

Reaction temperature    °C

 70~90

Mole ratio of water and alkene 

15~25 

Isobutylene conversion 

 ≥40%

Selectivity 

 ≥99%