PPS See: Polyphenylene sulfides

PPH1FR. See Polypropylene PPO. See Polyphenylene ether PPOA. See Phenyl phosphonic acid PPS. See Polyphenylene sulfide resin PPS. See Pyridinium propyl sulfobetaine PPS-OH4b% w/v, PPS-OH 50% w/v, PPS-OH. See 1-(2-Hydroxy-3-sulfopropyl) pyridinium betaine... [Pg.3698]

As regards the general behaviour of polymers, it is widely recognised that crystalline plastics offer better environmental resistance than amorphous plastics. This is as a direct result of the different structural morphology of these two classes of material (see Appendix A). Therefore engineering plastics which are also crystalline e.g. Nylon 66 are at an immediate advantage because they can offer an attractive combination of load-bearing capability and an inherent chemical resistance. In this respect the arrival of crystalline plastics such as PEEK and polyphenylene sulfide (PPS) has set new standards in environmental resistance, albeit at a price. At room temperature there is no known solvent for PPS, and PEEK is only attacked by 98% sulphuric acid. [Pg.27]

Polyketone, Polyetheretherketone (PEEK) Polyphenylene Sulfide (PPS) 9 7-9 see Crotonaldehyde 1-Butene ... [Pg.1601]

Polyphenylene Sulfide (PPS) Polysulfone 8-9 0 see Ethylene Oxide epsilon-Ca prolactam Polysulfone, Polyarylsulfone (PASU) Polytetrafluoroethylene (PTFE) 9 9... [Pg.1614]

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