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Water, generally glass transition

SBR latices are high-solids dispersions of rubber particles in water, the viscosity and rheology of which are, in general, independent of the polymer properties, unlike solutions. They offer a wide range of molecular weight and glass transition temperature. Three classes of SBR latices are available in the market. [Pg.586]

Copoly(ester ester)s belong to the family of thermoplastic elastomers (TPEs) and consist in general of thermo-reversible hard and elastic soft domains [11]. The copoly(ester ester) used here consists of 60% poly(butylene terephthalate), 35% poly(butylene adipate) and 5% 4,4 -methylenebis(phenyl isocyanate), and shows domain sizes of about 20 nm [12]. The material possesses a rubber plateau between the glass transition temperature of the mixed amorphous PBA/PBT phase (the PBT phase is semi-crystalline) at about -30°C and the melting point of the PBT at about 220°C. Due to the vulnerability of the amorphous PBA/PBT soft domains towards water attack [13] the PBT/PBA copoly(ester ester) is used here to study the existence of ESC of a chemical rather than a physical nature. For the sake of clarity it should be emphasized that no additives have been used in the copoly(ester ester) described here. [Pg.117]


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See also in sourсe #XX -- [ Pg.16 , Pg.21 ]




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Water glass

Water, generally

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