88497-56-7 Usage
Description
Brominated polystyrene is a white or light yellow powder or granule. It is non-toxic and non-flammable and provides outstanding thermal stability and electrical performance. Brominated Polystyrene is used in engineering plastics such as polyester (PET, PBT, and PCT) and polyamides (nylons).
Production method
A brominated polystyrene product made by the process comprising:pretreating a solution of a polystyrene reactant comprising from about five to about 20 percent by weight of said polystyrene reactant, in a halogenated hydrocarbon solvent with at least about 0.1 percent by weight of an additive to suppress halogenation of the polystyrene backbone, prior to brominating the polystyrene in the presence of a catalyst;subsequently adding a metal halide bromination catalyst to said solution, capable of effecting bromination of the ring without causing crosslinking of the polystyrene;adding to said solution from about 1 to about 3.4 moles of a brominating agent, per mole of polystyrene repeating units;reacting said polystyrene with said brominating agent at a temperature of from about ?20° C. to about 50° C., and isolating the brominated polystyrene.
Uses
Different sources of media describe the Uses of 88497-56-7 differently. You can refer to the following data:
1. Brominated polystyrene is a kind of new-type bromine flame-retardant materials, it is formed with PS catalysis by the bromine and crushed to become white powder. Brominated polystyrene is a kind of new-type bromine flame-retardant materials, it is formed with PS catalysis by the bromine and crushed to become white powder. It is high flame-retardant, hot stability, and engineering plastics compatibility is good, , toxicity is low, It is particularly suitable for engineering plasticapplications such as polyesters (PET, PBT, PCT) and polyamides (nylons).It has outstanding thermal stability. It is an ideal choice for high temperature applications such as engineering plastics.
2. Bromopolystyrene is flame retardant provides outstanding thermal stability and electrical performance. It is particularly suitable for engineering plastic applications such as polyesters (PET, PBT, PC
T) and polyamides (nylons).
Check Digit Verification of cas no
The CAS Registry Mumber 88497-56-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,8,4,9 and 7 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 88497-56:
(7*8)+(6*8)+(5*4)+(4*9)+(3*7)+(2*5)+(1*6)=197
197 % 10 = 7
So 88497-56-7 is a valid CAS Registry Number.
