Poly terephthalate

Figure 6. Local effective diffusion coefficient, Deff(C), for carbon dioxide in poly(terephthalate) at 35 °C.

Further residual metal oxides from catalysts used for polymer synthesis, e.g. poly-terephthalic acid diol ester, are oxides of antimony, gallium, germanium, cobalt, man-... [Pg.18]

A, Aliphatic poly(anhydrides) , Aliphatic poly(lactams) , Aliphatic poly(sulphones) , Partly aromatic poly(lactams). (B) , Aliphatic poly(di-esters) O, Aliphatic poly(di-urethanes) , Aliphatic poly(di-amides) A, Poly(terephthalates) . Aliphatic poly(di-ureas) , Poly(terephthalamides) , Poly(xylylene diamides) and poly(phenylene diethylene diamides). [Pg.158]

Poly(terephthalic acid), TA (para-) Poly(isophthalic acid), IPA (meta-)... [Pg.185]

Subramanyam, R., Pinkus, A.G., 1985. Synthesis of poly(terephthalic anhydride) by hydrolysis of terephthaloyl chloride triethylamine intermediate adduct characterization of intermediate adduct. Journal of Macromolecular Science—chemistry A22, 23. [Pg.187]

In a study of the effects of temperature on the melt viscosities of copolyesters of terephthalic acid, i sophthalic acid, and methylhydroquinone, McFarlane and Davis observed that minima in the melt viscosity versus temperature curves occurred at about 340 to 360°C in compositions containing 40 to 60 mol % isophthallc acid (total diacids equal 100 mol %). The increase in the melt viscosities with increasing temperature after the minima presumably is due to the Increase in the isotropic content of the polymers and the decrease in the degree of liquid crystallinity. We did not observe this phenomenon in the rigid-rod, all-aromatic, liquid crystalline polyesters that did not contain any meta component because of the high temperatures involved (above the decomposition temperatures of the polyesters). A poly(terephthalate-Isophthalate) of methylhydroquinone containing 70 mol % isophthallc acid was not liquid crystalline and, therefore, did not exhibit a minimum in a plot of melt viscosity versus temperature... [Pg.200]

Polymer Solubility in Aqueous Organic Bases. 0-T [poly(terephthalic hydrazide)] and many other... [Pg.22]

TABLE I. Liquid Crystalline Solutions of Poly(Terephthalic Hydrazide) in Aqueous Organic Bases... [Pg.23]

Fig. 7. Effect of Inherent Viscosity of Poly(Terephthalic Hydrazide) on the Critical Concentration in 25.5% Aqueous (CH3)4N0H...

TABLE II. Nematic-Isotropic Transition Teit eratures for Some Poly(Terephthalic Hydrazide) Solutions... [Pg.29]

TABLE VI. Solubility of Poly(Terephthalic Hydrazide-co-p-Phenylene Terephthalamides) in 10% Aqueous (CH3)4NOH... [Pg.37]

Fig. 11. Dilute Solution Viscosity of Poly(Terephthalic Hydrazide) in 5% Aqueous Diethylamine at 25 C...

Second virial coefficient of poly(terephthalic acid-co-4-aminobenzohydrazide)... [Pg.1228]

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