Poly phenylene sulphide

Poly(ethylene terephtlhalate) Phenol-formaldehyde Polyimide Polyisobutylene Poly(methyl methacrylate), acrylic Poly-4-methylpentene-1 Polyoxymethylene polyformaldehyde, acetal Polypropylene Polyphenylene ether Polyphenylene oxide Poly(phenylene sulphide) Poly(phenylene sulphone) Polystyrene Polysulfone Polytetrafluoroethylene Polyurethane Poly(vinyl acetate) Poly(vinyl alcohol) Poly(vinyl butyral) Poly(vinyl chloride) Poly(vinylidene chloride) Poly(vinylidene fluoride) Poly(vinyl formal) Polyvinylcarbazole Styrene Acrylonitrile Styrene butadiene rubber Styrene-butadiene-styrene Urea-formaldehyde Unsaturated polyester... [Pg.434]

Current heat-resistant polymers are poly(phenylene sulphides), poly(phenylene sulphones), and polyether sulphones where phenylene groups of the linear chains are cross-linked by sulphur atoms or sulphone groups. ... [Pg.401]

The polymers which have stimulated the greatest interest are the polyacetylenes, poly-p-phenylene, poly(p-phenylene sulphide), polypyrrole and poly-1,6-heptadiyne. The mechanisms by which they function are not fully understood, and the materials available to date are still inferior, in terms of conductivity, to most metal conductors. If, however, the differences in density are taken into account, the polymers become comparable with some of the moderately conductive metals. Unfortunately, most of these polymers also have other disadvantages such as improcessability, poor mechanical strength, instability of the doped materials, sensitivity to oxygen, poor storage stability leading to a loss in conductivity, and poor stability in the presence of electrolytes. Whilst many industrial companies have been active in their development (including Allied, BSASF, IBM and Rohm and Haas,) they have to date remained as developmental products. For a further discussion see Chapter 31. [Pg.120]

The presence of the either linkages is sufficient to allow the material to be melt processed, whilst the polymer retains many of the desirable characteristics of polyimides. As a consequence the material has gained rapid acceptance as a high-temperature engineering thermoplastics material competitive with the poly-sulphones, poly(phenylene sulphides) and polyketones. They exhibit the following key characteristics ... [Pg.525]

Other blends such as with poly (butylene terephthalate) and poly(phenylene sulphide) which are niche materials not further discussed in this chapter. [Pg.590]

Typical properties of poly(phenylene sulphides) are shown in Table 21.2. Whilst rigidity and tensile strength are similar to those of other engineering... [Pg.594]

As with the polysulphones, the deactivated aromatic nature of the polymer leads to a high degree of oxidative stability, with an indicated UL Temperature Index in excess of 250°C for PEEKK. The only other melt-processable polymers in the same league are poly(phenylene sulphides) and certain liquid crystal polyesters (see Chapter 25). [Pg.604]

The use of PBT as an engineering material is more a consequence of a balance of good properties rather than of a few outstanding ones. It does not possess the toughness of polycarbonate, the abrasion resistance of an aliphatic polyamide, the heat resistance of a polysulphone, polyketone or poly(phenylene sulphide) or... [Pg.725]

It has already been shown (e.g. Chapters 20 and 21) that the insertion of a p-phenylene into the main chain of a linear polymer increased the chain stiffness and raised the heat distortion temperature. In many instances it also improved the resistance to thermal degradation. One of the first polymers to exploit this concept commercially was poly(ethylene terephthalate) but it was developed more with the polycarbonates, polysulphone, poly(phenylene sulphides) and aromatic polyketones. [Pg.730]

With a somewhat lower level of heat resistance but with many properties that make them of interest as engineering materials alongside the polycarbonates, polysulphones, poly(phenylene sulphides) and polyketones are the so-called polyarylates which are defined as polyester from bis-phenols and dicarboxylic acids. [Pg.731]

Notes-. PES, poly(aryl ether sulphone) PEEK, poly(aryl ether ether ketone) PC, polycarbonate PEI, polyetherimide PPS, poly(phenylene sulphide). [Pg.74]

Karger-Kocsis J. and Friedrich K. (1987). Microstructural details and the effect of testing conditions on the fracture toughness of injection molded poly(phenylene sulphide). J. Mater. Sci. 22, 947-961. [Pg.275]

Poly(phenylene sulphide) Polypropylene Polystyrene toughened with rubber Styrene-acrylonitrile... [Pg.144]

Based on these findings, a polymerization was attempted with/7-bromobenzenethiolate ions and catalytic amounts of PhN2+ BF4 as initiator. When the reaction was performed in DM SO, a poly(/ -phenylene sulphide) (PPS) was obtained with n = 6-7285. When the dia-zonium salt was />-BrC6H4N2+ BF4" (catalyst that has another leaving group), the PPS obtained was with n = 9-10285. [Pg.1455]

Poly(propylene sulphide) Poly(phenylene sulphide)... [Pg.925]

Whilst the properties of poly(phenylene sulphides) vary between grades, particularly because of varying molecular linearity and presence of contaminants, they generally show the following special characteristics ... [Pg.593]

The thermal behaviour of sulphur containing polymers has been reported on [302]. The major breakdown in poly(l,4-phenylene sulphide)... [Pg.151]

Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...