Morphology and structure of poly(p-phenylene terephthalamide) crystallized from dilute organic solution
β Scribed by Catheryn L Jackson; Henri D Chanzy
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 836 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0032-3861
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π SIMILAR VOLUMES
Flow birefringence (FB) for samples of poly-p-phenylene terephthalamide (PPPhTPhA) dissolved in sulphuric acid has been investigated; intrinsic viscosities [~/] of the solutions have been measured. Characteristic values of FB [n] and orientation angles [X/9] of the solutions were determined. Coeffic
Molecular composites, in which a small concentration of ionically modified poly(p-phenylene terephthalamide) (PPTA) is dispersed in a poly(ethylene oxide) matrix, have been prepared. With the content of PPTA anion increasing to about 5 wt %, the glass-transition temperature rises and the melting tem
## Abstract The highβpressure meltβcrystallization behaviors of poly(__p__βphenylene sulfide) (PPS) were investigated using WAXD, DSC, TEM and SEM. PPS extendedβchain crystals with __c__βaxis thickness exceeding 4.5 Β΅m were formed at high pressure. The DSC results showed that the melting temperatur