Abstract
This work presents a new model for the form factor of a star polymer consisting of self-avoiding branches. This new model incorporates excluded volume effects and is derived from the two-point correlation function for a star polymer. This model is compared with small-angle neutron scattering measurements from polystyrene stars immersed in a good solvent, tetrahydrofuran. It is shown that this model provides a good description of the scattering signature originating from the excluded volume effect, and it explicitly elucidates the connection between the global conformation of a star polymer and the local stiffness of its constituent branch.
Original language | English |
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Pages (from-to) | 1901-1905 |
Number of pages | 5 |
Journal | Journal of Applied Crystallography |
Volume | 47 |
Issue number | 6 |
DOIs | |
State | Published - Dec 1 2014 |
Keywords
- excluded volume effects
- scattering functions
- star polymers