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Effect of polymer matrix density on molecular segregation and orientational ordering by a hybrid computer simulation

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  • Foo, Grace M
  • Pandey, R.B

Abstract

A hybrid computer simulation is used to study the effect of heterogeneous matrix density (pb) on the segregation and orientation of short-chain molecules, i.e., dimer, trimer, etc., a model for polymer dispersed liquid crystal (PDLC) in an external field. Size of molecular aggregates is found to increase with the matrix density, a polymerization-induced segregation consistent with the recent experimental observation (Boots and coworkers, Macromolecules 29 (1996) 7690; Liq. Cryst. 22 (1997) 145,255.). For low molecular weight liquid, the orientational ordering decreases monotonically with pb, while the orientation in a higher weight liquid depends nonmonotonically on pb.

Suggested Citation

  • Foo, Grace M & Pandey, R.B, 2000. "Effect of polymer matrix density on molecular segregation and orientational ordering by a hybrid computer simulation," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 282(3), pages 375-383.
    • Handle: RePEc:eee:phsmap:v:282:y:2000:i:3:p:375-383
    DOI: 10.1016/S0378-4371(00)00098-4
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