Polystyrenes atactic

Although it is called crystal clear polystyrene, atactic PS is amorphous and clear, as are PMMA and polycarbonate (PC). In contrast, hdpe and nylon 66 are highly crystalline and opaque. The relationship of packing efficiency to specific gravity and crystallinity is readily illustrated by ldpe and HDPE, which are 60 and 95% crystalline, respectively, and have specific gravities of 0.91 and 0.97, respectively. [Pg.28]

Polysarcosine Polystyrene (atactic) Xylol Water Benzene Chloroform Cyclohexane Dichloroethane Ethylbenzene Ethylcyclohexane Methylcyclohexane Methyl ethyl ketone... [Pg.299]

Poly (methylstyrene), mixed isomers Polystyrene, atactic Poly (formaldehyde)... [Pg.126]

PPO PPOX PPT PS a-PS polylphenylene oxide) polylpropylene oxide) hydroxypropyl starch polystyrene atactic-polystyrene... [Pg.145]

Berek, D. Lath, D. Durdovic, V., "Phase Relations in the Ternary System Atactic Polystyrene-Atactic Polypropylene-Toluene," J. Polym. Sci., Part C, 16, 659 (1967). [Pg.167]

Fig. 1. a Relation between Ini in toluene and M for fractions of polystyrene (o) isotactic polystyrene ( ) atactic polystyrene. From Ref.2-1, b Relation between [rj] in benzene and M for fractions of polystyrene (o) isotactic polystyrene ( ) atactic polystyrene. From Ref.2)... [Pg.3]

A-TAB . See Calcium phosphate dibasic Atactic butadiene polymer. See Polybutadiene Atactic poly(acrylic acid). See Polyacrylic acid Atactic polypropylene. See Polypropylene, amorphous Polypropylene Atactic polystyrene. See Polystyrene Atactic poly (vinyl chloride). See Polyvinyl chloride... [Pg.358]

PPO Poly(p-phenylene oxide) or poly(2,6-dimethyl-l,4-phenylene ether) (PPE) PPS Polyphenylene sulfide PS Polystyrene (atactic)... [Pg.1390]

A material that solidifies from the molten state without crystallization, a supercooled liquid whose shear viscosity is t > 10 Pas, a liquid whose rigidity is great enough to be put to use, or a glassy state of matter. A typical glassy material is hard and brittle (tensile modulus E 70 GPa, tensile strength a 0.5 GPa). Typical polymeric glasses are atactic polystyrene, atactic polymethylmethacrylate, polycarbonate, etc. [Pg.2226]

BER Berek, D., Lath, D., and Durdovic, V., Phase relations in the ternary system atactic polystyrene-atactic polypropylene-toluene,/. Polym. Sci. PartC, 16,659,1967. [Pg.695]

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