Products
styrene for SMA
styrene for SMA,
Styrene maleic anhydride production raw material, styrene used for Styrene maleic anhydride,
Product Features
| CAS Number | 100-42-5 |
| EINECS No. | 202-851-5 |
| H.S. Code | 2902.50 |
| Chemical formula | H2C=C6H5CH |
| Chemical Properties | |
| Melting point | -30-31 C |
| Boling point | 145-146 C |
| Specific gravity | 0.91 |
| Solubility in water | < 1% |
| Vapour density | 3.60 |
Synonyms
Cinnamene; Cinnamenol; Diarex HF 77; Ethenylbenzene; NCI-C02200;Phenethylene; Phenylethene; Phenylethylene; Phenylethylene, inhibited; Stirolo(Italian); Styreen (Dutch); Styrene (CZECH); Styrene Monomer (ACGIH); StyreneMonomer, Stabilized (DOT); Styrol (German); Styrole; Styrolene; Styron; Styropor; Vinylbenzen (CZECH); Vinylbenzene; Vinylbenzol.
Certificate of Analysis
| Property | Data | Unit |
| Bases | A level≥99.5%;B level≥99.0%. | - |
| Appearance | colorless transparent oily liquid | - |
| Melting point | -30.6 | ℃ |
| Boiling point | 146 | ℃ |
| Relative density | 0.91 | Water=1 |
| Relative vapor density | 3.6 | Air=1 |
| Saturated vapor pressure | 1.33(30.8℃) | kPa |
| Heat of combustion | 4376.9 | kJ/mol |
| Critical temperature | 369 | ℃ |
| Critical pressure | 3.81 | MPa |
| Octanol/water partition coefficients | 3.2 | - |
| Flash point | 34.4 | ℃ |
| Ignition temperature | 490 | ℃ |
| Upper explosive limit | 6.1 | %(V/V) |
| Lower explosive limit | 1.1 | %(V/V) |
| Solubleness | Insoluble in water, soluble in alcoho and most organic solvents. | |
| Main application | Used for manufacturing polystyrene, synthetic rubber, ion-exchange resin ,etc. | |
Package and Delivery
Packaging Detai: Packed in 220kg/drum,17 600kgs/20’GP
ISO TANK 21.5MT
1000kg/drum, Flexibag, ISO tanks or according to customer`s request.
Product Application
Used in the manufacture of rubbers, plastics, and polymers.
a) Production of: expandable polystyrene (EPS);
b) Production of polystyrene (HIPS) and GPPS;
c) Production of styrenic co-polymers;
d) Production of unsaturated polyester resins;
e) Production of styrene-butadiene rubber;
f) Production of styrene-butadiene latex;
g) Production of styrene isoprene co-polymers;
h) Production of styrene based polymeric dispersions;
i) Production of filled polyols. Styrene is mainly used as a monomer for the manufacture of polymers (such as polystyrene, or certain rubber and latex)
Styrene maleic anhydride (SMA or SMAnh) is a synthetic polymer that is built-up of styrene and maleic anhydride monomers. The monomers can be almost perfectly alternating, making it an alternating copolymer,[1] but (random) copolymerisation with less than 50% maleic anhydride content is also possible. The polymer is formed by a radical polymerization, using an organic peroxide as the initiator. The main characteristics of SMA copolymer are its transparent appearance, high heat resistance, high dimensional stability, and the specific reactivity of the anhydride groups. The latter feature results in the solubility of SMA in alkaline (water-based) solutions and dispersion.
SMA is available in a broad range of molecular weights and maleic anhydride (MA) contents. In a typical combination of those two properties, SMA is available as a crystal clear granule that can be used in a wide variety of applications. SMA polymers with a high molecular weight are widely used in engineering plastic applications, normally in the impact modified and optional glass fibre filled variants. Alternatively, SMA is applied using its transparency in combination with other transparent materials like PMMA or the heat resistance to heat-boost other polymers materials like ABS or PVC. The solubility of SMA in alkaline solutions makes it suitable for various applications in the field of sizings (paper), binders, dispersants and coatings. The specific reactivity of SMA makes it a suitable agent for compatibilizing normally incompatible polymers (e.g. ABS/PA blends) or cross-linking. The glass transition temperature of Styrene maleic anhydride is 130 – 160 °C.
