1974
DOI: 10.1021/ma60042a033
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Conformation of Polymer Chain in the Bulk

Abstract: Neutron coherent scattering techniques have been used for the determination of the conformation of polymer in bulk and experimental details are given about the application of this method to the study of polymeric systems. Measurements have been made for small and intermediate momentum ranges on a series of eight monodisperse deuterated polystyrenes of molecular weight ranging from 21,000 to 1,100,000. The results lead to the concluson that in amorphous state the conformation of the polymer molecule is indistin… Show more

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Cited by 429 publications
(222 citation statements)
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“…2) Recent progress in neutron scattering techniques [10,11,12] has allowed a precise observation of the coil pair correlation function, in dilute as well as in semi-dilute solutions, over the entire intermediate The first is currently being studied and will be published elsewhere [13]. We will be concerned here with two 1) In a good solvent, in the limit of zero concentration, it is well-known [4] that the excluded volume interaction v swells the coil only if This condition expresses in fact the Ginzbourg criterion of the critical phenomena [14].…”
mentioning
confidence: 99%
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“…2) Recent progress in neutron scattering techniques [10,11,12] has allowed a precise observation of the coil pair correlation function, in dilute as well as in semi-dilute solutions, over the entire intermediate The first is currently being studied and will be published elsewhere [13]. We will be concerned here with two 1) In a good solvent, in the limit of zero concentration, it is well-known [4] that the excluded volume interaction v swells the coil only if This condition expresses in fact the Ginzbourg criterion of the critical phenomena [14].…”
mentioning
confidence: 99%
“…1). The special features of the scattering technique are amply described in recent papers [10,11,12]. All measurements are performed on a small-angle scattering spectrometer of the Laboratoire Léon-Brillouin set on a cold neutron guide of the EL3 reactor at Saclay [10].…”
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confidence: 99%
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“…Pour se convaincre de cet aspect non trivial, il est édifiant de lire les pionniers de cette technique qui démontrent la pertinence de la diffusion centrale qu'ils observent pour un échantillon en la comparant à la mesure réalisée sans avoir rien mis dans le faisceau (par exemple ref. [3] fig. 5).…”
Section: Soustraction Des Différentes Contributions à La Mesureunclassified
“…Ce résultat très important pour étudier les fondus de polyméres est résumé dans le théoréme 50/50 [25]. En effet, d'aprés l'équation (16), l'intensité diffusée est maximum pour une fraction en volume de 50% de chaînes marquées.…”
Section: Exemple : Les Polymères Fondusunclassified