Absorption of sulfonic acids on nylon in ethylene glycol
β Scribed by Mamoru Nango; Akira Katayama; Nobuhiko Kuroki
- Publisher
- John Wiley and Sons
- Year
- 1974
- Tongue
- English
- Weight
- 302 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0021-8995
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π SIMILAR VOLUMES
Pellets of poly(ethylene terephthalate) (PET; 0.48-1.92 g) were heated in anhydrous ethylene glycol (EG; 5 mL) with 2-equivs of NaOH at 150ΠC for 80 min or 180ΠC for 15 min to convert them quantitatively to disodium terephthalate (Na 2 -TPA) and EG. The disodium salt was precipitated quantitatively
The translational mobility of linear macromolecules of poly(ethylene glycol) (PEG) within a weakly cross-linked poly(methacrylic acid) (PMAA) hydrogel was investigated by means of the pulse field gradient (PFG) NMR method in order to reveal the effect of PMAA/PEG complex formation. It was found that
## SYNOPSIS Clear time (tcl), the time required for the turbid mixture of terephthalic acid (TPA) and ethylene glycol (EG) to be clear, was measured to examine the effect of poly(ethy1ene terephthalate) (PET) prepolymer (DP of 1-5) on the kinetics of dissolution and/or esterification of TPA with E
## Abstract In this work, gamma radiation was used to prepare hydrophilic hydrogels based on different mass ratios of poly(ethylene glycol) (PEG) and methacrylic acid (MAc) monomer. The thermal stability of hydrogels was characterized thermogravimetric analysis (TGA). The effect of temperature and