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Understanding crystal nucleation in solution-segregated polymers

โœ Scribed by Liyun Zha; Wenbing Hu

Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
702 KB
Volume
50
Category
Article
ISSN
0032-3861

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โœฆ Synopsis

We report dynamic Monte Carlo simulations of crystal nucleation in polymer bulk phase segregated from solutions. We found that poorer solvent enhances crystal nucleation in the concentrated phase of polymers. In addition, when the solvent becomes poor enough, crystal nucleation prefers to occur at the diffuse interfaces. The results are consistent with the predictions from theoretical phase diagrams, but something different from immiscible polymer blends. The surface-enhanced crystallization may explain the bowl-shaped crystal aggregates observed experimentally in poor solvent.

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