# Rigid fully flexible fused hard sphere model

The **rigid fully flexible fused hard sphere model** (RFFFHS) consists of a fused hard sphere chain in which one section is rigid and the rest of the *molecule* is flexible ^{[1]}
^{[2]}.

## Excluded volume

For the tangential case the excluded volume is given by ^{[3]}.

## References

- ↑ Carl McBride, Carlos Vega, and Luis G. MacDowell "Isotropic-nematic phase transition: Influence of intramolecular flexibility using a fused hard sphere model" Physical Review E
**64**011703 (2001) - ↑ Carl McBride and Carlos Vega "A Monte Carlo study of the influence of molecular flexibility on the phase diagram of a fused hard sphere model", Journal of Chemical Physics
**117**pp. 10370-10379 (2002) - ↑ Thijs van Westen, Thijs J. H. Vlugt, and Joachim Gross "An analytical approximation for the orientation-dependent excluded volume of tangent hard sphere chains of arbitrary chain length and flexibility", Journal of Chemical Physics
**137**044906 (2012)

- Related reading

- Tao Jiang and Jianzhong Wu "Isotropic-nematic phase transition in athermal solutions of rod-coil diblock copolymers", Journal of Chemical Physics
**127**034902 (2007) - Bernardo Oyarzún, Thijs van Westen and Thijs J. H. Vlugt "Isotropic-nematic phase equilibria of hard-sphere chain fluids—Pure components and binary mixtures", Journal of Chemical Physics
**142**064903 (2015)