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

Grace M Foo and R.b Pandey

Physica A: Statistical Mechanics and its Applications, 2000, vol. 282, issue 3, 375-383

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.

Keywords: Aggregation; Segregation; Orientational ordering; Hybrid simulation (search for similar items in EconPapers)
Date: 2000
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:282:y:2000:i:3:p:375-383

DOI: 10.1016/S0378-4371(00)00098-4

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