POLY(STYRENE-CO-DIVINYLBENZENE) Chemical Properties

Melting point:

270 °C

Density 

0.29 g/cm³ (free fall)(lit.)

vapor density 

<1 (vs air)

vapor pressure 

17 mm Hg ( 20 °C)

refractive index 

n20/D 1.333

storage temp. 

2-8°C

form 

microspheres

color 

White to off-white

Odor

Faint odor of styrene

Water Solubility 

Insoluble in water.

Stability:

Stable. Moisture sensitive. Incompatible with strong oxidizing agents.

Cosmetics Ingredients Functions

OPACIFYING
FILM FORMING

InChI

1S/C24H27NO5/c1-24(2,3)30-22(27)13-12-16(14-26)25-23(28)29-15-21-19-10-6-4-8-17(19)18-9-5-7-11-20(18)21/h4-11,14,16,21H,12-13,15H2,1-3H3,(H,25,28)/t16-/m0/s1

InChIKey

BCIPGSZQUDLGSY-INIZCTEOSA-N

SMILES

N([C@@H](CCC(=O)OC(C)(C)C)C=O)C(=O)OCC1c2c(cccc2)c3c1cccc3

EPA Substance Registry System

Divinylbenzene styrene polymer (9003-70-7)

Safety Information

Safety Statements 

24/25

WGK Germany 

3

RTECS 

BD1200000

Autoignition Temperature

932 °F

TSCA 

TSCA listed

HS Code 

39039000

Storage Class

11 - Combustible Solids

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

POLY(STYRENE-CO-DIVINYLBENZENE) Usage And Synthesis

Chemical Properties

solid, often supplied as small beads

Uses

Poly(styrene-divinylbenzene) is used in chromatographic separation medium. It is also used for the removal of phenolic inhibitors: hydroquinone, hydroquinone monomethyl ether and tert-butylcatechol. It is widely used as column packing material in liquid chromatography for separation of both organic and inorganic ions. Styrene-divinylbenzene copolymer is used in inorganic trace analysis for solid phase extraction preconcentration.

General Description

Amberlite XAD-2, a hydrophobic copolymer of styrene-divinylbenzene resin which requires longer purification process and is used as a sorbent. Amberlite XAD-2 resin depending upon the aromaticity and size of the hydrophobic groups sorbs organic compounds through low-energy physical interactions.

Synthesis

Polystyrene resin is produced by suspension polymerization. Ethyl benzene is dehydrogenated in the presence of catalyst and converted into crude styrene, which is sent to the polymerization section after fractionation to increase the purity of styrene to more than 99.5%, and then purified water, polyvinyl alcohol (dispersant), dibenzoyl peroxide (initiator) and styrene are introduced into the polymerization kettle according to a certain proportion, and polymerization is carried out at 85?? and normal pressure to obtain transparent bead material, which is washed, centrifuged and dried as the finished product.

POLY(STYRENE-CO-DIVINYLBENZENE)(9003-70-7)Related Product Information

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• POLY(STYRENE-CO-DIVINYLBENZENE)