Mobile nanoparticles and their effect on phase separation dynamics in thin-film polymer blends

@inproceedings{Chung2004MobileNA,
  title={Mobile nanoparticles and their effect on phase separation dynamics in thin-film polymer blends},
  author={H.-J. Chung and Andreas Taubert and Ranjan D Deshmukh and Russell J Composto},
  year={2004}
}
– We present a systematic study of mobile nanoparticles (NP) and their effect on phase separation dynamics in polymer blend films. Starting with a homogeneous dispersion of silica NP in PMMA : SAN films, the NP are observed to partition into the PMMA-rich phase and stratify during phase separation. The correlation length ξ between phases grows as ξ ∼ t for blends containing 0, 2, and 5wt% NP. However, phase size decreases as the wt% of NP increases. This behavior agrees with a coalescence model… CONTINUE READING