A series of N-alkyl-p-toluenesulfonamides (ATSA) were synthesized and identified. The measurement of solution viscosity of poly(ethy1ene terephthalate) (PET) proved that ATSA does not react with PET during the melting process of PET/ATSA mixtures, and consequently does not cause any decrease of mole
Preoriented poly(ethylene terephthalate) yarns: Influence of the gauche-trans transformation on crystallization
โ Scribed by Galli, R. ;Canetti, M. ;Sadocco, P. ;Seves, A. ;Vicini, L.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1983
- Tongue
- English
- Weight
- 782 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0098-1273
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## Abstract A series of kinetic measurements using FTโIR have been carried out in order to clarify the mechanism of the __gauche__โ__trans__ isomerization process and the timeโtemperatureโtransformation relationships in poly(ethylene terephthalate). Twoโstage isomerization isotherms are distinguish
## Abstract The effect of pressure on the crystallization of poly(ethylene terephthalate) (PET) was studied. The Instron capillary rheometer was adapted as a highโpressure/highโtemperature dilatometer to carry on experiments up to 40,000 psi. Isothermal measurements of PET melt density were made wi