Acrylonitrile butadiene styrene plastic, ABS

When polymerization proceeds in the presence of modifiers, the mechanochemical process enhances cross-linking and, correspondingly, improves the physicochemical properties of final plastics. For example, mechanochemical treatment of acrylonitrile butadiene styrene (ABS) plastic in the presence of tolnene diisocyanate improves thermal oxidative stability of the plastic (Chetverikov et al. 2002). 

B.J. Jody, B. Arman, D.E. Karvelas, J.A. Pomykala, Jr., and E.J. Daniels, Method for the separation of high impact polystyrene (HIPS) and acrylonitrile butadiene styrene (ABS) plastics, US Patent 5 653867, assigned to The University of Chicago (Chicago, IL), August 5,1997. 

The thermoplastic polymers we studied included the polyolefins as polyethylene and polypropylene the polyacrylates and methacrylates as poly (methyl methacrylate) styrene polymers including both clear and impact types and acrylonitrile-butadiene-styrene (ABS) plastics. Fire retardance was evaluated by the D-635 procedure as described previously (19). 

ASTM D 4673 Standard Classification System for Acrylonitrile-Butadiene-Styrene (ABS) Plastics and Alloys Molding and Extrusion Materials ... 

FIGURE 15.45 Decabromodiphenyl ether, congener BDE-209 (a) upper, total ion chromatograph showing detection of BDE-209 in an acrylonitrile butadiene styrene (ABS) plastic extract (a) lower, product ion mass spectrum of BDE-209 showing the loss of Brj from each of the ions of the molecular ion cluster (b) %RSD in the chart is obtained from raw peak area data for a standard solution run after 10 injections of the ABS extract. 

American Society for Testing and materials (ASTM), ASTM D2235-04, Standard specification for solvent cement for acrylonitrile-butadiene-styrene (ABS) plastic pipe and fittings. Annual Book of ASTM Standards, Vol. 08.04. 

Shiimdu, P.M. Remsen, E.E. Giddings, J.C. Isolation and characterization of polymeric and particulate components of acrylonitrile-butadiene-styrene (ABS) plastics by thermal field-flow fractionation. J. Appl. Polym. Sci. 1996, 60, 1695. 

D2468 Standard specifications for acrylonitrile-butadiene-styrene (ABS) Plastic Pipe Fittings, Schedule 40 Committee F-17 on Plastics Piping System ... 

These structures are illustrated in Figure 1.3. Through the leadership of Amos and others, polymer blends and grafts found uses as rubber-toughened plastics, which include high-impact polystyrene (HiPS) and acrylonitrile-butadiene-styrene (ABS) plastics. As further illustrated in Table 1.1, block copolymers containing a water-soluble block and an oil soluble block became important as surfactants through the work of Lunsted, while other block copolymers, composed of elastomer and plastic blocks, were useful as thermoplastic elastomers. 

Figure 10.21 shows the thermogram obtained from an immiscible mixture of styrene-acrylonitrile (SAN) copolymer and polybutadiene. This blend is a high impact strength material referred to as acrylonitrile-butadiene-styrene (ABS) plastic. Two glass transitions are observed, the low-temperature transition associated with the polybutadiene and the high-temperature transition associated with the SAN copolymer. 

Commercially important examples of rubber-toughened plastics include the high-impact polystyrenes (HIPS), in which polystyrene is toughened with a polybutadiene mbber, and the acrylonitrile-butadiene-styrene (ABS) plastics, in which a polybutadiene or poly(butadiene-co-acrylonitrile) rubber toughens a poly(styrene-co-acrylonitrile) glassy phase. More complete discussions of these two-phase polymer systems are available elsewhere [7,8]. 

Many polymer blends are prepared by emulsion polymerization with sequential addition of different monomers. One example of this is the preparation of acrylonitrile/butadiene/styrene (ABS) plastics. Typically the butadiene is polymerized first in the presence of a crosslinking agent and the other two monomers added in a later stage. 

---