The crystallization of a copoly(chlorotrifluorethylene-vinylidene fluoride) from the amorphous rubbery state
β Scribed by A. Siegmann; G. Cohen; Z. Baraam
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 922 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract The general crystallization behavior of amorphous polyamides during heating treatment was measured by wide angle Xβray scattering (WAXS) and differential scanning calorimetry (DSC) to get information on (1) the temperature range where the crystallization in an anisothermic process takes
The physical stability and solid-state recrystallization of spray-dried 'amorphous' lactose particles were visualized using environmentally controlled atomic force microscopy (EC-AFM) and conventional optical microscopy. The morphology and crystalline state were investigated as a function of relativ
Samples of poly(vinylidene fluoride) (PVF 2 ) and (vinylidene fluoride-tetra fluoroethylene) (VF 2 -VF 4 ) copolymer were etched with a chromium-based etching reagent. The etching rate was lower for the VF 2 -VF 4 copolymer samples than for the PVF 2 samples. The melting point and enthalpy of fusion
Though there is an advantage in using the higher solubility amorphous state in cases where low solubility limits absorption, physical instability poses a significant barrier limiting its use in solid oral dosage forms. Unlike chemical instability, where useful accelerated stability testing protocols