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Polyesters Polyfbutylene terephthalate

Another possibility for obtaining imide modified thermoplastic polyesters was to use as a monomer the hydroxy acid made from trimellitic anhydride and aminoethanol. Such a poly(ester-imide) was claimed for injection molding [240]. For the same use, poly(ester-imide)s containing aminophenol/trimellitic anhydride [241],imidised polyfbutylene terephthalate) [242] and a wholly aromatic poly(ester-imide) made from trimellitic anhydride, p-aminobenzoic acid, p-acetoxybenzoic acid, diacetoxybiphenyl and terephthalic and isophthalic acids are known, which showing optical anisotropy [243]. [Pg.73]

H. J. Radusch and R. Androsch, Blends based on polyfbutylene terephthalate), in Handbook of Thermoplastic Polyesters Homopolymers, Copolymers, Blends, and Composites (ed. S. Fakirov), Wiley-VCH Verlag GmbH, Weinheim, Germany, Ch. 20, pp. 895-925,2002. [Pg.178]

Aliphatic polyesters have crystaUine melting points lower than polyethylene. Polycaprolactone has a melting point of 50 °C. Placing phenyl rings in the backbone increases both and Tg significantly. Poly(ethylene terephthalate) with = 265 C and Tg = 65 °C and polyfbutylene terephthalate) with T = 210 °C and Tg = 35 C are both commercial thermoplastics (Formula 1.8). Closely related to these polymers is poly(bisphenol-A carbonate) (Formula 1.9) with Tg = 150 °C. This polymer usually does not crystallize. [Pg.14]

The above-mentioned results of the SSP of PET can be generally applied to other semicrystalline polyesters, such as polyfbutylene terephtlialate) (PBT), polyftri-metliylene terephthalate) PTT), polyfethylene naphtlialate) (PEN) or any other kind of semicrystalline co-polyester, as a result of their similar reaction behaviors. Most of the studies have been focused on PET and PBT due to tlieir industrial importance. Meanwhile, the popularity of PEN is growing on account of the outstanding properties of this particular polymer. [Pg.213]

Polyfbutylene adipate-co-terephthalate) (PBAT) is a new type of biodegradable polyester supplied by BASF [6] and Eastman Company [7]. PBAT is more flexible and has higher elongation at break than other biodegradable polyesters, and therefore is more suitable for food packaging and agricultural films. [Pg.759]

Aromatic polyesters, such as PET, PBT or PEN, are not degradable in the presence of microorganisms, while their copolyesters with aliphatic acids show some extent of biodegradability [28,81,82]. It was reported that copolyesters based on PBT and polyfbutylene adipate) (PBA) with about 35-55 mol % of terephthalic acid residues exhibited suitable mechanical and physical properties, as well as favorable biodegradability (film approx. 100 pm degradation within 8-12 weeks in soil or compost). Beside copolymerization, the biodegradable properties of polyesters can be improved by increasing the hydrophilicity, for instance by the introduction of... [Pg.404]


See other pages where Polyesters Polyfbutylene terephthalate is mentioned: [Pg.473]    [Pg.201]    [Pg.117]    [Pg.371]    [Pg.178]   


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