The crystal structure of poly-p-phenylene sulphide

Tabor, B.J.; Magré, E. P.; Boon, J.

doi:10.1016/0014-3057(71)90145-5

Cited by 271 publications

(116 citation statements)

References 12 publications

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“…Tabor,et al,16 have shown that PPS crystallizes with two phenylene sulfide chains passing through the center and edge of an orthorhombic unit cell. Particularly noteworthy is the fact that successive phenylene groups of a given chain alternate at ±450 with respect to the (100) plane.…”

Section: Properties Of Poly(p-phenylene Sulfide)mentioning

confidence: 99%

Poly(P‐phenylene sulfide) hexafluoroarsenate: A novel conducting polymer

Clarke

Kanazawa

Lee

et al. 1982

J. Polym. Sci. Polym. Phys. Ed.

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Poly(p‐phenylene sulfide) (PPS) is a melt‐ and solution‐processible polymer which on treatment with AsF5 forms a blue‐black material with a conductivity of 1–10 Ω−1 cm−1. Thermopower measurements indicate that the resulting polymer is p type, consistent with partial oxidation of the PPS by the AsF5. The rate and extent of this doping process prove to be particularly sensitive to the degree of crystallinity of the starting polymer. There is also evidence of crosslinking of the polymer chains during the reaction with AsF5. The details of both the chemistry and physics of the doping of PPS and several of its derivatives are presented.

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Section: Properties Of Poly(p-phenylene Sulfide)mentioning

confidence: 99%

Poly(P‐phenylene sulfide) hexafluoroarsenate: A novel conducting polymer

Clarke

Kanazawa

Lee

et al. 1982

J. Polym. Sci. Polym. Phys. Ed.

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“…The X-ray equipment used was a high power X-ray generator and parallel beam optics. The only peak with a strong intensity found between 20° and 160° was the doublet of (200) and (111) of PPS at 2θ=30.53° [6,7]. We use this peak for stress determination, although the sensitivity is because of low diffraction angle.…”

Section: Methodsmentioning

confidence: 99%

Residual Stress Evaluation of Short-Fiber Reinforced Plastics by X-Ray Diffraction

Tanaka

Koike

Akiniwa

2014

AMR

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Abstract. The X-ray diffraction method is used to evaluate the residual stress in injection-molded plates of short-fiber reinforced plastics (SFRP) made of crystalline thermoplastics, polyphenylene sulphide (PPS), reinforced by carbon fibers with 30 mass%. The stress in the matrix in the skin layer was determined using Cr-Kα radiation with the sin 2 ψ method. The X-ray evaluation of stress in carbon fibers was not possible because of high texture. A new method was proposed to evaluate the macrostress in SFRP from the measurement of the matrix stress. According to micromechanics analysis of SFRP, the matrix stresses in the fiber direction and perpendicular to the fiber direction, and shear stress can be expressed as linear functions of the applied (macro-) stresses in the fiber direction and perpendicular to the fiber direction, and shear stress. The proportional constants are named stress-partitioning coefficients. Using skin-layer strips cut parallel, perpendicular and 45° to the molding direction, the stress in the matrix was evaluated under the uniaxial applied stress and the stress-partitioning coefficients of the above equations were determined. Once the relations between the macrostress and matrix stress are established, the macrostress in SFRP can be evaluated from the measurements of the matrix stresses using X-rays.

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“…Das mittlere Molekulargewicht liegt zwischen 2000 und 10000 [2], Die Struktur des PPS V-l wurde von Tabor und Mitarb. untersucht [3]. Das Poly-Phenylensulfid hat eine orthorhombische Elementarzelle (a = 8.67 A, b = 5,61 A und c (Faserachse) = 10.26 Ä), die vier Monomereinheiten enthält.…”

Section: Einführungunclassified

“…Der intramolekulare Beitrag des starren Gitters läßt sich aus der bekannten Geometrie der Moleküle [3] quervernetzten Polymer besonders groß. Hier dürfte der Kettenabstand kleiner sein als durch die Kristallstruktur des linearen PPS vorgegeben.…”

Section: Zweite Momente Und Linienbreitenunclassified

NMR-Untersuchungen über molekulare Bewegungsprozesse in Phenylensulfiden

Jurga

Eckert

Müller‐Warmuth

1979

Zeitschrift Für Naturforschung A

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NMR Studies of Molecular Motions in Phenylene SulfidesInternal motion in poly (p-phenylene sulfides) and in some low-molecular phenylene sulfides has been studied using NMR relaxation and broad line techniques. The relaxation rates T\~l in the laboratory frame at 30 or 15 MHz, and T^1 in the rotating frame at 45 kHz, and the second moments (or local fields or linewidths) have been measured over an extended range of temperatures for five different materials. For the polymers, the most important process has an activation energy of approximately 40 kJ/mole; it is ascribed to reorientational random oscillations of the phenylene groups, and it depends upon the detailed polymer structure. The origin of further processes of motion observed with activation energies of 20 and 11 kcal/mole is discussed. The rather narrow lines which occur in the NMR spectra at temperatures well above the glass transition are explained by the mobile fraction of chains of the non-crystalline regions.

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The crystal structure of poly-p-phenylene sulphide

Cited by 271 publications

References 12 publications

Poly(P‐phenylene sulfide) hexafluoroarsenate: A novel conducting polymer

Poly(P‐phenylene sulfide) hexafluoroarsenate: A novel conducting polymer

Residual Stress Evaluation of Short-Fiber Reinforced Plastics by X-Ray Diffraction

NMR-Untersuchungen über molekulare Bewegungsprozesse in Phenylensulfiden

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