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Large Scale Organisation of Flexible Polymers
Author(s) -
De Gennes P. G.
Publication year - 1975
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.197500055
Subject(s) - chemistry , polymer , deuterium , neutron scattering , molecule , scale (ratio) , polymer science , chemical physics , precipitation , thermodynamics , statistical physics , scattering , physics , nuclear physics , organic chemistry , optics , quantum mechanics , meteorology
The detailed shape and the correlations inside flexible coil polymers are discussed, with emphasis on (a) recent neutron scattering experiments and (b) theoretical developments based on a rigorous analogy between polymers and coupled spin systems (ferromagnets). For example, the size of a tagged (e.g. deuterated) molecule immersed in a semidilute solution of similar (hydrogenated) molecules has now been measured accurately, as a function of chain length, and polymer concentration. Remarkable laws have appeared – some of which go decidedly beyond the simple mean field analysis of Flory and Huggins. Extensions of these considerations to poor solvents (collapse or precipitation) will also be presented.