Polystyrene chemical formula

Polystyrene [9003-53-6] (PS), the parent of the styrene plastics family, is a high molecular weight linear polymer which, for commercial uses, consists of - 1000 styrene units. Its chemical formula (1), where n = - 1000, tells htde of its properties. 

Fig. 1 Chemical formulas of the polymers used a carboxy-terminated polystyrene PS-COOH b random carboxy-terminated copolymer of polystyrene and 2,3,4,5,6-pentafluoropolystyrene FPS-COOH c 3-glycidoxypropyl trimethoxysilane (GPS) d tridecafluoro-1,1,2,2-tetrahydrooctyl) dimethylchlorosilane FSI...

Styrene An aromatic compound refined from petroleum with the chemical formula C8H8. Also known as vinyl benzene and phenethylene. Styrene is used in the manufacture of polystyrene and synthetic rubber. 

Fig. 2.2. Chemical formulas for PAH and PSS. -potential change ( ) of polystyrene sulphate latex particles (diameter 640nm) and fluorescence intensity ( ) due to presence of FITC-labelled PAH as a function of total concentration of added FITC-PAH. Particle concentration was 2.2 10 per ml. Adsorption in 0.5M NaCI...

Such a polymer derives it name from the monomer from which it is usually manufactured. An idealized sample of polymer would consist of chains all having identical molecular weight. Such systems are called monodisperse polymers. In practice, however, all polymers are made up of molecules with molecular weights that vary over a range of values (i.e., have a distribution of molecular weights) and are said to be polydisperse. Whether monodisperse or polydisperse, the chemical formula of the polymer remains the same. For example, if the polymer is polystyrene, it would continue to be represented by... 

Some new benzanthrone dyes were synthesized and applied for the one-step colouration and stabilization of polystyrene. The chemical structures of monomeric benzanthrone dye (formula 1), the stabilizer TTMP 2,2-(2,2,6,6-tetramethylpiperidine-l-yl)-4,6-dichloro-l,3,5-triazine (formula 2) and the new synthetic product showing both colouration and stabillizer capacity (formula 3) are shown in Fig. 3.135. The synthesis process was controlled by TLC using a silica stationary phase and an n-heptane-acetone (1 1, v/v)... 

Napalm B was developed by Dow Chemical during the Vietnam War as a replacement for the original napalm jelly in firebombs. It is stickier and burns much hotter than the original filler. The Dow formula used 25 percent gasoline, 25 percent benzine, and 50 percent polystyrene. Polystyrene is a common plastic used for such diverse items as toys, styrofoam cups, and packing-filler "peanuts." As anyone who has tried to spray-paint a styrofoam cooler knows, polystyrene dissolves into a sticky mush when it comes in contact with hydrocarbons such as paint or gasoline. It is this quality of polystyrene that makes napalm B so effective for molotov cocktails. 

Smmmmmm can be measured from the chemical shift of isotactic polystyrene or from that of the largest signal in polymers epimerized to low extents and is 146.40 ppm for the conditions employed in the present study. Accordingly, the chemical shift of any heptad can be calculated by the following general formulas and specific examples. 

Figure 19 (a) Optical and AFM images and (b) fluorescence and SEM images of the honeycomb structure of PPV-polystyrene copolymer film. AFM images of the morphology of (c) PPV-polystyrene copolymer and (d) PPV-polystyrene-fullerene derivatives. The chemical structure formula for the two copolymers are also reported. Reprinted figures with permission from B. de Boer, U. Stalmach, P.F. van Hutten, C. Melzer, V.V. Krasnikov, and G. Hadziioannou, Polymer42 (2001) 9097. Figure 1,6, 7. Copyright 2001 Elsevier.

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