2,4-Diphenyl-4—methyl-2-pentence
Formula;C18H20
Molecular weight:236.36
Appearance :clear transparent liquid
Purity GC(as total unsaturated dimers): 98% min (mass percentage))
Ratio-1-pentence/-2-pentence 93+/-1;7+/-1%
Density:1.0038
Boiling point:300-3200C
Flash point:1100C max
Refractive index(dioptre):1.5633
It is usded in the following applicantions:
Enviromentally friendly chain transfer agent /chain termination agent &polymer modifier in the manufacturer of :
1. High impact polystyrene&ABS resin ,giving good crack resistance and low temperature properties;
2. SAN resin,helping to control molecular weight and homogeneity;
3. Colourless ethylene-vinyl acetate/alcohol copolymer giving low degree of fish eye formation and haze;
4. Vinyl polymers by suspension polymerization.
5. Rubber reinforced styrene resin,to obtain good melt flow and odour free product
6. Unsaturated polyesters