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Polymer scattering information


Polymer scattering experiments are one of the main scientific methods used in chemistry, physics and other sciences to study the characteristics of polymeric systems: solutions, gels, compounds and more. As in most scattering experiments, it involves subjecting a polymeric sample to incident particles (with defined wavelengths), and studying the characteristics of the scattered particles: angular distribution, intensity polarization and so on. This method is quite simple and straightforward, and does not require special manipulations of the samples which may alter their properties, and hence compromise exact results.

As opposed to crystallographic scattering experiments, where the scatterer or "target" has very distinct order, which leads to well defined patterns (presenting Bragg peaks for example), the stochastic nature of polymer configurations and deformations (especially in a solution), gives rise to quite different results.

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Polymer scattering

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Polymer scattering experiments are one of the main scientific methods used in chemistry, physics and other sciences to study the characteristics of polymeric...

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Static light scattering

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molecular weight Mw of a macromolecule like a polymer or a protein in solution. Measurement of the scattering intensity at many angles allows calculation...

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Polymer

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structure of microphase-separated block polymers, polymeric micelles, and other materials. Wide-angle X-ray scattering (also called wide-angle X-ray diffraction)...

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Dynamic light scattering

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scattering (DLS) is a technique in physics that can be used to determine the size distribution profile of small particles in suspension or polymers in...

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Copolymer

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configuration of polymeric chains while IR can identify functional groups attached to the copolymer. Scattering techniques, such as static light scattering, dynamic...

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List of scattering experiments

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scattering Static light scattering Dynamic light scattering Polymer scattering with X-rays Neutron scattering Biological small-angle scattering with neutrons,...

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Molar mass distribution

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multi-angle laser-light scattering - see static light scattering. These detectors directly measure the molecular mass of the polymer and are most often used...

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Scattering

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connection between light scattering and acoustic scattering in the 1870s. Near the end of the 19th century, the scattering of cathode rays (electron...

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Crystallization of polymers

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semi-crystalline polymer under tensile stress and can drive the formation of the neck. The voids can be observed via small angle x-ray scattering. Unlike crazes...

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Polymer characterization

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scattering like Small-angle X-ray scattering (SAXS) can be used to measure the long periods of semicrystalline polymers. A true workhorse for polymer...

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Degree of polymerization

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light scattering by the polymer. Anhydroglucose unit IUPAC Definition in Compendium of Chemical Terminology (IUPAC Gold Book) Cowie J.M.G. Polymers: Chemistry...

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Multiangle light scattering

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multiangle laser light scattering (MALLS). The insertion of the word laser was intended to reassure those used to making light scattering measurements with...

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Polymer physics

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characterizing polymers are also common, using polymer characterization methods, such as size exclusion chromatography, viscometry, dynamic light scattering, and...

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Dispersity

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known as size-exclusion chromatography) Light scattering measurements such as dynamic light scattering Direct measurement via mass spectrometry, using...

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Colloid

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colloids are translucent because of the Tyndall effect, which is the scattering of light by particles in the colloid. Other colloids may be opaque or...

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Neutron diffraction

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Neutron diffraction or elastic neutron scattering is the application of neutron scattering to the determination of the atomic and/or magnetic structure...

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Unified scattering function

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The unified scattering function was proposed in 1995 as a universal approach to describe small-angle X-ray, and neutron scattering (and in some cases light...

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Electron mobility

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processes are scattering from acoustic phonons, impurity scattering, piezoelectric scattering, etc. In acoustic phonon scattering, electrons scatter from state...

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Soft matter

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membranes. Scattering techniques, such as wide-angle X-ray scattering, small-angle X-ray scattering, neutron scattering, and dynamic light scattering can also...

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Materials science

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Lovesey, S. W. (1984). Theory of Neutron Scattering from Condensed Matter; Volume 1: Neutron Scattering. Oxford: Clarendon Press. ISBN 978-0-19-852015-3...

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Raman spectroscopy

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identified. Raman spectroscopy relies upon inelastic scattering of photons, known as Raman scattering. A source of monochromatic light, usually from a laser...

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Radius of gyration

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experimentally with static light scattering as well as with small angle neutron- and x-ray scattering. This allows theoretical polymer physicists to check their...

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Fracture in polymers

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agents. Formations of submicroscopic cracks in polymers under load have been studied by x ray scattering techniques and the main regularities of crack...

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