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A- methylstyrene-co-acrylonitrile

SIO Slow, K.S., Goh, S.H., and Yap, K.S., Solubility parameters of poly(a-methylstyrene-co-acrylonitrile) from gas-liquid chromatography,/. Chromatogr., 354, 75, 1986. [Pg.462]

Several methods of Tg determination make it possible to measure the width of the glass transition temperature (TW). The value of TW can be more rehable in assessing the degree of miscibility than Tg. For example, TW of 6 °C was determined for neat polymers, TW = 10 °C for miscible blends, and TW = 32 °C for blends approaching immiscibility (Fried et al. 1978). By measuring Tg and TW for samples annealed at different temperatures and then quenched, one may be able to determine the level of miscibility and hence construct a simplified phase diagram. This has been done for numerous blends, like those listed in Table 2.26, and others, e.g., for PS/PTMPC, PVC/poly(a-methylstyrene-co-methylmethacrylate-co-acrylonitrile), and NBR/EVAc (Casper and Morbitzer 1977) vide infra. Table 2.27). [Pg.268]

Poly(a-methylstyrene-co-acrylorritrile) see poly(acrylonitrile-co-a-methylstyrene) 375... [Pg.532]

Acrylonitrile-Cf -a-methylstyrene- co-styrene Acrylonitrile-co-cc-methyl styrene-co-styrene Clear films Difference in composition between I and II < 12% acrylonitrile 769... [Pg.1318]

Applications As the basic process of electron transfer at an electrode is a fundamental electrochemical principle, polarography can widely be applied. Polarography can be used to determine electroreductible substances such as monomers, organic peroxides, accelerators and antioxidants in solvent extracts of polymers. Residual amounts of monomers remain in manufactured batches of (co)polymers. For food-packaging applications, it is necessary to ensure that the content of such monomers is below regulated level. Polarography has been used for a variety of monomers (styrene, a-methylstyrene, acrylic acid, acrylamide, acrylonitrile, methylmethacrylate) in... [Pg.671]

Poly (styrene-co-acrylonitrile). See Styrene/acrylonitrile copolymer Poly (styrene-co-allyl alcohol). See Styrene/allyl alcohol copolymer Poly (styrene-co-butadiene). See Styrene/butadiene polymer Poly (styrene-co-divinylbenzene). See Styrene/DVB copolymer Poly (styrene-co-maleic anhydride). See Styrene/MA copolymer Poly (styrene-co-methyl methacrylate). See Styrene/methyl methacrylate copolymer Poly (styrene-co-a-methylstyrene). See Styrene/a-methyl styrene resin Poly (styrene-divinylbenzene). See Styrene/DVB copolymer Polystyrene, expandable Synonyms EPS Expandable polystyrene Expanded polystyrene XPS Definition Amorphous PS beads contg. pentane as a blowing agent and coated with a lubricant the polymer is converted to foamed articles with a closed cell structure by applic. of steam Properties Beads (0.4-1.5 mm diam.)... [Pg.3577]

AcrylQnitrile-c -metiiyl methacrylate-co-a-methylstyrene Vinyl chloride Single Tg I had 8/58/34//acrylonitrile/ methyl mediacrylate/-methylst50 ene Casper and Morbitzer (1977)... [Pg.1931]

Acrylonitrile- co-a-methylstyrene Acrylonitrile-C(3-methyl methacrylate Single Tg - Cowie and Elexpuru (1992)... [Pg.2052]

Acrylonitrile- co-a-methylstyrene Single Tg Region of miscibility was sensitive to M- Gan et al. (1994b)... [Pg.2073]

Acrylonitrile-co-a-methylstyrene Acetonyl methacrylate I had 30 wt% acrylonitrile (AN) Goh and Lee (1990d)... [Pg.2082]

The explicit evidence of the macroradicals presence, under the conditions of cyclical fatigue by stretching, was demonstrated on the example of monofilaments based on poly(acrylonitrile-co-vinyl acetate-co-a-methylstyrene) copolymer. For this purpose, a special technique was applied, namely the filaments were impregnated with a solution of a stable radical l,l-diphenyl-2-picrylhydrazyl (DPPH) and supposed to cyclic fatigue. The generated macroradicals during the solicitation period reacted with a part of DPPH. Using ESR method, the difference between the initial concentration of the stable radicals and their final concentration allowed the calculation of... [Pg.141]

Figure 3.302. ESR spectrum of the mechanically stressed monofilaments based on ternary copolymer poly(acrylonitrile-co-vinyl acetate-co-a-methylstyrene) with fineness of 2.5 den, impregnated with DPPH (deformation, 50% from the fracture elongation solicitation rate, 5 mm/min) [90],... Figure 3.302. ESR spectrum of the mechanically stressed monofilaments based on ternary copolymer poly(acrylonitrile-co-vinyl acetate-co-a-methylstyrene) with fineness of 2.5 den, impregnated with DPPH (deformation, 50% from the fracture elongation solicitation rate, 5 mm/min) [90],...
Polymer (B) Characterization poly(acrylonitrile-co-a-methylstyrene) 1984SIO, 1986SIO MJg.moT = 160000, 30 wt% acrylonitrile, Luran KR 2556U, BASF ... [Pg.375]


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See also in sourсe #XX -- [ Pg.295 , Pg.325 ]




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