XPS analysis of model p-aramid compounds and poly (p-phenylene terephthalamide) fibers
โ Scribed by P.J.C Chappell; D.R Williams; G.A George
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 852 KB
- Volume
- 134
- Category
- Article
- ISSN
- 0021-9797
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๐ 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 were prepared by the solution blending of poly(ethylene oxide) (PEO) of three different molecular weights with low concentrations of poly(p-phenylene terephthalamide) (PPTA) anion serving as a rigid-rod reinforcement. For all of the composites, the tensile strength, stiffness, a
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