Mesophase structures in poly(ethylene terephthalate), poly(ethylene naphthalate) and poly(ethylene naphthalate bibenzoate)
โ Scribed by Paul L. Carr; Timothy M. Nicholson; Ian M. Ward
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 475 KB
- Volume
- 8
- Category
- Article
- ISSN
- 1042-7147
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๐ SIMILAR VOLUMES
Interval sorption kinetics of acetone in solvent cast films of random poly-(ethylene terephthalate)-co-(ethylene 2,6-naphthalate) (PET-co-PEN) are reported at 35ยฐC and at acetone pressures ranging from 0 to 7.3 cm Hg. Polymer composition is varied systematically from 0% to 50% poly(ethylene 2,6-naph
Random copolymers of poly(ethylene terephthalate) (PET) and poly(ethylene 2,6-naphthalate) (PEN) were synthesized by melt condensation. In a series of thin, solvent cast films of varying PEN content, acetone diffusivity and solubility were determined at 35ยฐC and an acetone pressure of 5.4 cm Hg. The
Memory effects of several copolymers of poly(ethylene oxide) (PEO) and poly(ethylene terephthalate) (PET) were illustrated with photos, determined with shrinkage experiments and characterized by the recovery of samples to their original figures. Copolymers of appropriate composition could undertake
Copolyesters were synthesized from bis(hydroxyethyl) naphthalate/bis-(hydroxymethylcyclohexane)naphthalate (BHEN/BHCN) with various compositions. Copolyesters having intrinsic viscosities of 0.58-0.65 dL g were obtained by melt polycondensation in the presence of metallic catalysts. The optimum cond