Chain formation in polymer melts
Polymer characterization - Small-angle neutron scattering
Article REF: AM3278 V1
Chain formation in polymer melts
Polymer characterization - Small-angle neutron scattering

Author : Jean-Pierre COTTON

Publication date: April 10, 1998 | Lire en français

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3. Chain formation in polymer melts

A polymer melt is an incompressible monomer liquid with no concentration fluctuations; it scatters neither photons nor neutrons. The polymer's conformation cannot be obtained by this experiment. This absence of scattering, s (q) = 0 in equation (1) , corresponds to compensation between intrachain and interchain concentration fluctuations, i.e. :

N2P(q)=nS2(q)

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