X-Ray Study of Amorphous Rubber

Simard, G. L.; Warren, Β. E.

doi:10.1021/ja01294a034

Cited by 32 publications

(10 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A Fourier analysis of the diffraction of amorphous rubber has been performed [39]. The results indicate that the x-ray pattern can be accounted for by the usual chain-molecule picture of rubber, without the necessity of making any specific assumptions as to mutual orientation of the chains.…”

Section: Scattering From Various Polymersmentioning

confidence: 99%

Quantitative X-Ray Studies of Order in Amorphous and Crystalline Polymers

Krimm

Tobolsky

1951

Textile Research Journal

View full text Add to dashboard Cite

The application of a Geiger counter spectrometer to the quantitative study of the scattering from amorphous and crystalline polymers has been investigated, and this technique has been shown to be very well suited to this purpose. The experimental technique used is described.The following polymers have been studied, in order to gain some insight into the structure and order characterizing the amorphous and crystalline regions : hexadecane, polyisobutylene, natural rubber, polystyrene (oriented and unoriented), polymethyl methacrylate, polytrifluorochloroethylene, octacosane, polyethylene, polytetrafluoroethylene, and various natural keratins. The scattering patterns are analyzed for their structural implications. * This article is based upon a thesis submitted by Samuel Krimm in partial fulfillment of the requirements for the degree of Doctor of Philosophy at

show abstract

Section: Scattering From Various Polymersmentioning

confidence: 99%

Quantitative X-Ray Studies of Order in Amorphous and Crystalline Polymers

Krimm

Tobolsky

1951

Textile Research Journal

View full text Add to dashboard Cite

show abstract

“…In a stretched elastomer network, it has been observed that the amorphous scattering halo, which comes from liquid-like monomer–monomer or chain–chain short range interferences, becomes anisotropic under elongation, with more intensity in directions perpendicular to the stretching direction [ 56 , 93 ]. Analyzing the azimuth dependence of the scattered intensity enables extracting an anisotropy parameter

, where the X suffix indicates that the quantity reflects the anisotropy of the X scattering pattern.…”

Section: Basis Of the Approachmentioning

confidence: 99%

Crosslinked Elastomers: Structure–Property Relationships and Stress-Optical Law

et al. 2021

View full text Add to dashboard Cite

We present a combination of independent techniques in order to characterize crosslinked elastomers. We combine well-established macroscopic methods, such as rheological and mechanical experiments and equilibrium swelling measurements, a more advanced technique such as proton multiple-quantum NMR, and a new method to measure stress-induced segmental orientation by in situ tensile X-ray scattering. All of these techniques give access to the response of the elastomer network in relation to the crosslinking of the systems. Based on entropic elasticity theory, all these quantities are related to segmental orientation effects through the so-called stress-optical law. By means of the combination of these techniques, we investigate a set of unfilled sulfur-vulcanized styrene butadiene rubber elastomers with different levels of crosslinking. We validate that the results of all methods correlate very well. The relevance of this approach is that it can be applied in any elastomer materials, including materials representative of various industrial application, without prerequisite as regards, e.g., optical transparency or simplified formulation. Moreover, the approach may be used to study reinforcement effects in filled elastomers with nanoparticles.

show abstract

“…Siniard and \I7arren (61) hale carried through for the pattern of unstretched rubber the 'ame type of Fourier anal \\ hich has hceri so useful for inr chtigations of the structurc of liquids aiid of glaws. This anal) sis gives directly from the x-ray scattering curve the radial distribution of neiglihoring atom,.…”

Section: The X-ray Diffraction Pattern For Amorphous Rubbermentioning

confidence: 99%

The Contribution of X-ray Research to the Knowledge of Rubber.

Gehman¹

1940

Chem. Rev.

View full text Add to dashboard Cite

X-Ray Study of Amorphous Rubber

Cited by 32 publications

References 0 publications

Quantitative X-Ray Studies of Order in Amorphous and Crystalline Polymers

Quantitative X-Ray Studies of Order in Amorphous and Crystalline Polymers

Crosslinked Elastomers: Structure–Property Relationships and Stress-Optical Law

The Contribution of X-ray Research to the Knowledge of Rubber.

Contact Info

Product

Resources

About